diff options
Diffstat (limited to 'xlators/features/bit-rot/src')
20 files changed, 7540 insertions, 7658 deletions
diff --git a/xlators/features/bit-rot/src/bitd/Makefile.am b/xlators/features/bit-rot/src/bitd/Makefile.am index a915f2d34b8..6db800e6565 100644 --- a/xlators/features/bit-rot/src/bitd/Makefile.am +++ b/xlators/features/bit-rot/src/bitd/Makefile.am @@ -1,20 +1,21 @@ +if WITH_SERVER xlator_LTLIBRARIES = bit-rot.la +endif xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features bit_rot_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS) AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ - -I$(top_srcdir)/rpc/xdr/src/ \ - -I$(top_srcdir)/rpc/rpc-lib/src \ - -I$(CONTRIBDIR)/timer-wheel \ - -I$(top_srcdir)/xlators/features/bit-rot/src/stub + -I$(top_srcdir)/rpc/xdr/src/ -I$(top_builddir)/rpc/xdr/src/ \ + -I$(top_srcdir)/rpc/rpc-lib/src -I$(CONTRIBDIR)/timer-wheel \ + -I$(top_srcdir)/xlators/features/bit-rot/src/stub -bit_rot_la_SOURCES = bit-rot.c bit-rot-scrub.c bit-rot-tbf.c bit-rot-ssm.c \ +bit_rot_la_SOURCES = bit-rot.c bit-rot-scrub.c bit-rot-ssm.c \ bit-rot-scrub-status.c bit_rot_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \ - $(top_builddir)/xlators/features/changelog/lib/src/libgfchangelog.la + $(top_builddir)/xlators/features/changelog/lib/src/libgfchangelog.la -noinst_HEADERS = bit-rot.h bit-rot-scrub.h bit-rot-tbf.h bit-rot-bitd-messages.h bit-rot-ssm.h \ +noinst_HEADERS = bit-rot.h bit-rot-scrub.h bit-rot-bitd-messages.h bit-rot-ssm.h \ bit-rot-scrub-status.h AM_CFLAGS = -Wall -DBR_RATE_LIMIT_SIGNER $(GF_CFLAGS) diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-bitd-messages.h b/xlators/features/bit-rot/src/bitd/bit-rot-bitd-messages.h index c6b6a4afa05..5bc5103a27c 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-bitd-messages.h +++ b/xlators/features/bit-rot/src/bitd/bit-rot-bitd-messages.h @@ -11,438 +11,91 @@ #ifndef _BITROT_BITD_MESSAGES_H_ #define _BITROT_BITD_MESSAGES_H_ -#include "glfs-message-id.h" +#include <glusterfs/glfs-message-id.h> -/* file bit-rot-bitd-messages.h - * brief BIT-ROT log-message IDs and their descriptions - */ - -/* NOTE: Rules for message additions - * 1) Each instance of a message is _better_ left with a unique message ID, even - * if the message format is the same. Reasoning is that, if the message - * format needs to change in one instance, the other instances are not - * impacted or the new change does not change the ID of the instance being - * modified. - * 2) Addition of a message, - * - Should increment the GLFS_NUM_MESSAGES - * - Append to the list of messages defined, towards the end - * - Retain macro naming as glfs_msg_X (for redability across developers) - * NOTE: Rules for message format modifications - * 3) Check acorss the code if the message ID macro in question is reused - * anywhere. If reused then then the modifications should ensure correctness - * everywhere, or needs a new message ID as (1) above was not adhered to. If - * not used anywhere, proceed with the required modification. - * NOTE: Rules for message deletion - * 4) Check (3) and if used anywhere else, then cannot be deleted. If not used - * anywhere, then can be deleted, but will leave a hole by design, as - * addition rules specify modification to the end of the list and not filling - * holes. - */ - -#define GLFS_BITROT_BITD_BASE GLFS_MSGID_COMP_BITROT_BITD -#define GLFS_BITROT_BITD_NUM_MESSAGES 55 -#define GLFS_MSGID_END (GLFS_BITROT_BITD_BASE + \ - GLFS_BITROT_BITD_NUM_MESSAGES + 1) -/* Messaged with message IDs */ -#define glfs_msg_start_x GLFS_BITROT_BITD_BASE, "Invalid: Start of messages" -/*------------*/ - - -#define BRB_MSG_FD_CREATE_FAILED (GLFS_BITROT_BITD_BASE + 1) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ - -#define BRB_MSG_READV_FAILED (GLFS_BITROT_BITD_BASE + 2) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ - -#define BRB_MSG_BLOCK_READ_FAILED (GLFS_BITROT_BITD_BASE + 3) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CALC_CHECKSUM_FAILED (GLFS_BITROT_BITD_BASE + 4) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_NO_MEMORY (GLFS_BITROT_BITD_BASE + 5) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_GET_SIGN_FAILED (GLFS_BITROT_BITD_BASE + 6) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SET_SIGN_FAILED (GLFS_BITROT_BITD_BASE + 7) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_OP_FAILED (GLFS_BITROT_BITD_BASE + 8) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_READ_AND_SIGN_FAILED (GLFS_BITROT_BITD_BASE + 9) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SIGN_FAILED (GLFS_BITROT_BITD_BASE + 10) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_GET_SUBVOL_FAILED (GLFS_BITROT_BITD_BASE + 11) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SET_TIMER_FAILED (GLFS_BITROT_BITD_BASE + 12) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_GET_INFO_FAILED (GLFS_BITROT_BITD_BASE + 13) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_PATH_FAILED (GLFS_BITROT_BITD_BASE + 14) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_MARK_BAD_FILE (GLFS_BITROT_BITD_BASE + 15) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_TRIGGER_SIGN (GLFS_BITROT_BITD_BASE + 16) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_REGISTER_FAILED (GLFS_BITROT_BITD_BASE + 17) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CRAWLING_START (GLFS_BITROT_BITD_BASE + 18) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SPAWN_FAILED (GLFS_BITROT_BITD_BASE + 19) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_INVALID_SUBVOL_CHILD (GLFS_BITROT_BITD_BASE + 20) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SKIP_OBJECT (GLFS_BITROT_BITD_BASE + 21) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_NO_CHILD (GLFS_BITROT_BITD_BASE + 22) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CHECKSUM_MISMATCH (GLFS_BITROT_BITD_BASE + 23) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_MARK_CORRUPTED (GLFS_BITROT_BITD_BASE + 24) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CRAWLING_FINISH (GLFS_BITROT_BITD_BASE + 25) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CALC_ERROR (GLFS_BITROT_BITD_BASE + 26) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_LOOKUP_FAILED (GLFS_BITROT_BITD_BASE + 27) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_PARTIAL_VERSION_PRESENCE (GLFS_BITROT_BITD_BASE + 28) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_MEM_ACNT_FAILED (GLFS_BITROT_BITD_BASE + 29) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_TIMER_WHEEL_UNAVAILABLE (GLFS_BITROT_BITD_BASE + 30) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_BITROT_LOADED (GLFS_BITROT_BITD_BASE + 31) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCALE_DOWN_FAILED (GLFS_BITROT_BITD_BASE + 32) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCALE_UP_FAILED (GLFS_BITROT_BITD_BASE + 33) -/*! - * @messageid - * @diagnosis - * @recommendedaction +/* To add new message IDs, append new identifiers at the end of the list. * - */ -#define BRB_MSG_SCALE_DOWN_SCRUBBER (GLFS_BITROT_BITD_BASE + 34) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCALING_UP_SCRUBBER (GLFS_BITROT_BITD_BASE + 35) -/*! - * @messageid - * @diagnosis - * @recommendedaction - */ -#define BRB_MSG_UNKNOWN_THROTTLE (GLFS_BITROT_BITD_BASE + 36) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_RATE_LIMIT_INFO (GLFS_BITROT_BITD_BASE + 37) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCRUB_INFO (GLFS_BITROT_BITD_BASE + 38) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_CONNECTED_TO_BRICK (GLFS_BITROT_BITD_BASE + 39) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_BRICK_INFO (GLFS_BITROT_BITD_BASE + 40) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SUBVOL_CONNECT_FAILED (GLFS_BITROT_BITD_BASE + 41) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_INVALID_SUBVOL (GLFS_BITROT_BITD_BASE + 42) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_RESCHEDULE_SCRUBBER_FAILED (GLFS_BITROT_BITD_BASE + 43) -/*! - * @messageid - * @diagnosis - * @recommendedaction + * Never remove a message ID. If it's not used anymore, you can rename it or + * leave it as it is, but not delete it. This is to prevent reutilization of + * IDs by other messages. * + * The component name must match one of the entries defined in + * glfs-message-id.h. */ -#define BRB_MSG_SCRUB_START (GLFS_BITROT_BITD_BASE + 44) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCRUB_FINISH (GLFS_BITROT_BITD_BASE + 45) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCRUB_RUNNING (GLFS_BITROT_BITD_BASE + 46) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCRUB_RESCHEDULED (GLFS_BITROT_BITD_BASE + 47) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRB_MSG_SCRUB_TUNABLE (GLFS_BITROT_BITD_BASE + 48) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_SCRUB_THREAD_CLEANUP (GLFS_BITROT_BITD_BASE + 49) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_SCRUBBER_CLEANED (GLFS_BITROT_BITD_BASE + 50) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_GENERIC_SSM_INFO (GLFS_BITROT_BITD_BASE + 51) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_ZERO_TIMEOUT_BUG (GLFS_BITROT_BITD_BASE + 52) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_BAD_OBJ_READDIR_FAIL (GLFS_BITROT_BITD_BASE + 53) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_SSM_FAILED (GLFS_BITROT_BITD_BASE + 54) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define BRB_MSG_SCRUB_WAIT_FAILED (GLFS_BITROT_BITD_BASE + 55) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ +GLFS_MSGID(BITROT_BITD, BRB_MSG_FD_CREATE_FAILED, BRB_MSG_READV_FAILED, + BRB_MSG_BLOCK_READ_FAILED, BRB_MSG_CALC_CHECKSUM_FAILED, + BRB_MSG_NO_MEMORY, BRB_MSG_GET_SIGN_FAILED, BRB_MSG_SET_SIGN_FAILED, + BRB_MSG_OP_FAILED, BRB_MSG_READ_AND_SIGN_FAILED, BRB_MSG_SIGN_FAILED, + BRB_MSG_GET_SUBVOL_FAILED, BRB_MSG_SET_TIMER_FAILED, + BRB_MSG_GET_INFO_FAILED, BRB_MSG_PATH_FAILED, BRB_MSG_MARK_BAD_FILE, + BRB_MSG_TRIGGER_SIGN, BRB_MSG_REGISTER_FAILED, + BRB_MSG_CRAWLING_START, BRB_MSG_SPAWN_FAILED, + BRB_MSG_INVALID_SUBVOL_CHILD, BRB_MSG_SKIP_OBJECT, BRB_MSG_NO_CHILD, + BRB_MSG_CHECKSUM_MISMATCH, BRB_MSG_MARK_CORRUPTED, + BRB_MSG_CRAWLING_FINISH, BRB_MSG_CALC_ERROR, BRB_MSG_LOOKUP_FAILED, + BRB_MSG_PARTIAL_VERSION_PRESENCE, BRB_MSG_MEM_ACNT_FAILED, + BRB_MSG_TIMER_WHEEL_UNAVAILABLE, BRB_MSG_BITROT_LOADED, + BRB_MSG_SCALE_DOWN_FAILED, BRB_MSG_SCALE_UP_FAILED, + BRB_MSG_SCALE_DOWN_SCRUBBER, BRB_MSG_SCALING_UP_SCRUBBER, + BRB_MSG_UNKNOWN_THROTTLE, BRB_MSG_RATE_LIMIT_INFO, + BRB_MSG_SCRUB_INFO, BRB_MSG_CONNECTED_TO_BRICK, BRB_MSG_BRICK_INFO, + BRB_MSG_SUBVOL_CONNECT_FAILED, BRB_MSG_INVALID_SUBVOL, + BRB_MSG_RESCHEDULE_SCRUBBER_FAILED, BRB_MSG_SCRUB_START, + BRB_MSG_SCRUB_FINISH, BRB_MSG_SCRUB_RUNNING, + BRB_MSG_SCRUB_RESCHEDULED, BRB_MSG_SCRUB_TUNABLE, + BRB_MSG_SCRUB_THREAD_CLEANUP, BRB_MSG_SCRUBBER_CLEANED, + BRB_MSG_GENERIC_SSM_INFO, BRB_MSG_ZERO_TIMEOUT_BUG, + BRB_MSG_BAD_OBJ_READDIR_FAIL, BRB_MSG_SSM_FAILED, + BRB_MSG_SCRUB_WAIT_FAILED, BRB_MSG_TRIGGER_SIGN_FAILED, + BRB_MSG_EVENT_UNHANDLED, BRB_MSG_COULD_NOT_SCHEDULE_SCRUB, + BRB_MSG_THREAD_CREATION_FAILED, BRB_MSG_MEM_POOL_ALLOC, + BRB_MSG_SAVING_HASH_FAILED); -#define glfs_msg_end_x GLFS_MSGID_END, "Invalid: End of messages" +#define BRB_MSG_FD_CREATE_FAILED_STR "failed to create fd for the inode" +#define BRB_MSG_READV_FAILED_STR "readv failed" +#define BRB_MSG_BLOCK_READ_FAILED_STR "reading block failed" +#define BRB_MSG_NO_MEMORY_STR "failed to allocate memory" +#define BRB_MSG_CALC_CHECKSUM_FAILED_STR "calculating checksum failed" +#define BRB_MSG_GET_SIGN_FAILED_STR "failed to get the signature" +#define BRB_MSG_SET_SIGN_FAILED_STR "signing failed" +#define BRB_MSG_OP_FAILED_STR "failed on object" +#define BRB_MSG_TRIGGER_SIGN_FAILED_STR "Could not trigger signing" +#define BRB_MSG_READ_AND_SIGN_FAILED_STR "reading and signing of object failed" +#define BRB_MSG_SET_TIMER_FAILED_STR "Failed to allocate object expiry timer" +#define BRB_MSG_GET_SUBVOL_FAILED_STR \ + "failed to get the subvolume for the brick" +#define BRB_MSG_PATH_FAILED_STR "path failed" +#define BRB_MSG_SKIP_OBJECT_STR "Entry is marked corrupted. skipping" +#define BRB_MSG_PARTIAL_VERSION_PRESENCE_STR \ + "PArtial version xattr presence detected, ignoring" +#define BRB_MSG_TRIGGER_SIGN_STR "Triggering signing" +#define BRB_MSG_CRAWLING_START_STR \ + "Crawling brick, scanning for unsigned objects" +#define BRB_MSG_CRAWLING_FINISH_STR "Completed crawling brick" +#define BRB_MSG_REGISTER_FAILED_STR "Register to changelog failed" +#define BRB_MSG_SPAWN_FAILED_STR "failed to spawn" +#define BRB_MSG_CONNECTED_TO_BRICK_STR "Connected to brick" +#define BRB_MSG_LOOKUP_FAILED_STR "lookup on root failed" +#define BRB_MSG_GET_INFO_FAILED_STR "failed to get stub info" +#define BRB_MSG_SCRUB_THREAD_CLEANUP_STR "Error cleaning up scanner thread" +#define BRB_MSG_SCRUBBER_CLEANED_STR "clened up scrubber for brick" +#define BRB_MSG_SUBVOL_CONNECT_FAILED_STR \ + "callback handler for subvolume failed" +#define BRB_MSG_MEM_ACNT_FAILED_STR "Memory accounting init failed" +#define BRB_MSG_EVENT_UNHANDLED_STR "Event unhandled for child" +#define BRB_MSG_INVALID_SUBVOL_STR "Got event from invalid subvolume" +#define BRB_MSG_RESCHEDULE_SCRUBBER_FAILED_STR \ + "on demand scrub schedule failed. Scrubber is not in pending state." +#define BRB_MSG_COULD_NOT_SCHEDULE_SCRUB_STR \ + "Could not schedule ondemand scrubbing. Scrubbing will continue " \ + "according to old frequency." +#define BRB_MSG_THREAD_CREATION_FAILED_STR "thread creation failed" +#define BRB_MSG_RATE_LIMIT_INFO_STR "Rate Limit Info" +#define BRB_MSG_MEM_POOL_ALLOC_STR "failed to allocate mem-pool for timer" +#define BRB_MSG_NO_CHILD_STR "FATAL: no children" +#define BRB_MSG_TIMER_WHEEL_UNAVAILABLE_STR "global timer wheel unavailable" +#define BRB_MSG_BITROT_LOADED_STR "bit-rot xlator loaded" +#define BRB_MSG_SAVING_HASH_FAILED_STR \ + "failed to allocate memory for saving hash of the object" #endif /* !_BITROT_BITD_MESSAGES_H_ */ diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.c b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.c index 0afd7ea05b1..5cef2ffa5e5 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.c +++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.c @@ -9,65 +9,70 @@ */ #include <string.h> +#include <stdio.h> #include "bit-rot-scrub-status.h" void -br_inc_unsigned_file_count (br_scrub_stats_t *scrub_stat) +br_inc_unsigned_file_count(br_scrub_stats_t *scrub_stat) { - if (!scrub_stat) - return; + if (!scrub_stat) + return; - pthread_mutex_lock (&scrub_stat->lock); - { - scrub_stat->unsigned_files++; - } - pthread_mutex_unlock (&scrub_stat->lock); + pthread_mutex_lock(&scrub_stat->lock); + { + scrub_stat->unsigned_files++; + } + pthread_mutex_unlock(&scrub_stat->lock); } void -br_inc_scrubbed_file (br_scrub_stats_t *scrub_stat) +br_inc_scrubbed_file(br_scrub_stats_t *scrub_stat) { - if (!scrub_stat) - return; + if (!scrub_stat) + return; - pthread_mutex_lock (&scrub_stat->lock); - { - scrub_stat->scrubbed_files++; - } - pthread_mutex_unlock (&scrub_stat->lock); + pthread_mutex_lock(&scrub_stat->lock); + { + scrub_stat->scrubbed_files++; + } + pthread_mutex_unlock(&scrub_stat->lock); } void -br_update_scrub_start_time (br_scrub_stats_t *scrub_stat, struct timeval *tv) +br_update_scrub_start_time(br_scrub_stats_t *scrub_stat, time_t time) { - if (!scrub_stat) - return; + if (!scrub_stat) + return; - pthread_mutex_lock (&scrub_stat->lock); - { - scrub_stat->scrub_start_tv.tv_sec = tv->tv_sec; - } - pthread_mutex_unlock (&scrub_stat->lock); + pthread_mutex_lock(&scrub_stat->lock); + { + scrub_stat->scrub_start_time = time; + } + pthread_mutex_unlock(&scrub_stat->lock); } void -br_update_scrub_finish_time (br_scrub_stats_t *scrub_stat, char *timestr, - struct timeval *tv) +br_update_scrub_finish_time(br_scrub_stats_t *scrub_stat, char *timestr, + time_t time) { - if (!scrub_stat) - return; + int lst_size = 0; - pthread_mutex_lock (&scrub_stat->lock); - { - scrub_stat->scrub_end_tv.tv_sec = tv->tv_sec; + if (!scrub_stat) + return; - scrub_stat->scrub_duration = - scrub_stat->scrub_end_tv.tv_sec - - scrub_stat->scrub_start_tv.tv_sec; + lst_size = sizeof(scrub_stat->last_scrub_time); + if (strlen(timestr) >= lst_size) + return; - strncpy (scrub_stat->last_scrub_time, timestr, - sizeof (scrub_stat->last_scrub_time)); - } - pthread_mutex_unlock (&scrub_stat->lock); + pthread_mutex_lock(&scrub_stat->lock); + { + scrub_stat->scrub_end_time = time; + + scrub_stat->scrub_duration = scrub_stat->scrub_end_time - + scrub_stat->scrub_start_time; + + snprintf(scrub_stat->last_scrub_time, lst_size, "%s", timestr); + } + pthread_mutex_unlock(&scrub_stat->lock); } diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h index 02bd0fab04e..f022aa831eb 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h +++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub-status.h @@ -15,34 +15,36 @@ #include <sys/time.h> #include <pthread.h> +#include <glusterfs/common-utils.h> + struct br_scrub_stats { - uint64_t scrubbed_files; /* Total number of scrubbed file */ + uint64_t scrubbed_files; /* Total number of scrubbed files. */ - uint64_t unsigned_files; /* Total number of unsigned file */ + uint64_t unsigned_files; /* Total number of unsigned files. */ - uint64_t scrub_duration; /* Duration of last scrub */ + uint64_t scrub_duration; /* Duration of last scrub. */ - char last_scrub_time[1024]; /*last scrub completion time */ + char last_scrub_time[GF_TIMESTR_SIZE]; /* Last scrub completion time. */ - struct timeval scrub_start_tv; /* Scrubbing starting time*/ + time_t scrub_start_time; /* Scrubbing starting time. */ - struct timeval scrub_end_tv; /* Scrubbing finishing time */ + time_t scrub_end_time; /* Scrubbing finishing time. */ - int8_t scrub_running; /* Scrub running or not */ + int8_t scrub_running; /* Whether scrub running or not. */ - pthread_mutex_t lock; + pthread_mutex_t lock; }; typedef struct br_scrub_stats br_scrub_stats_t; void -br_inc_unsigned_file_count (br_scrub_stats_t *scrub_stat); +br_inc_unsigned_file_count(br_scrub_stats_t *scrub_stat); void -br_inc_scrubbed_file (br_scrub_stats_t *scrub_stat); +br_inc_scrubbed_file(br_scrub_stats_t *scrub_stat); void -br_update_scrub_start_time (br_scrub_stats_t *scrub_stat, struct timeval *tv); +br_update_scrub_start_time(br_scrub_stats_t *scrub_stat, time_t time); void -br_update_scrub_finish_time (br_scrub_stats_t *scrub_stat, char *timestr, - struct timeval *tv); +br_update_scrub_finish_time(br_scrub_stats_t *scrub_stat, char *timestr, + time_t time); #endif /* __BIT_ROT_SCRUB_STATUS_H__ */ diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c index d50f40a860e..289dd53f610 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c +++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.c @@ -12,31 +12,32 @@ #include <ctype.h> #include <sys/uio.h> -#include "glusterfs.h" -#include "logging.h" -#include "common-utils.h" +#include <glusterfs/glusterfs.h> +#include <glusterfs/logging.h> +#include <glusterfs/common-utils.h> #include "bit-rot-scrub.h" #include <pthread.h> #include "bit-rot-bitd-messages.h" #include "bit-rot-scrub-status.h" +#include <glusterfs/events.h> struct br_scrubbers { - pthread_t scrubthread; + pthread_t scrubthread; - struct list_head list; + struct list_head list; }; struct br_fsscan_entry { - void *data; + void *data; - loc_t parent; + loc_t parent; - gf_dirent_t *entry; + gf_dirent_t *entry; - struct br_scanfs *fsscan; /* backpointer to subvolume scanner */ + struct br_scanfs *fsscan; /* backpointer to subvolume scanner */ - struct list_head list; + struct list_head list; }; /** @@ -45,34 +46,32 @@ struct br_fsscan_entry { * to the dictionary value. */ static int32_t -bitd_fetch_signature (xlator_t *this, br_child_t *child, - fd_t *fd, dict_t **xattr, br_isignature_out_t **sign) +bitd_fetch_signature(xlator_t *this, br_child_t *child, fd_t *fd, + dict_t **xattr, br_isignature_out_t **sign) { - int32_t ret = -1; - - ret = syncop_fgetxattr (child->xl, fd, xattr, - GLUSTERFS_GET_OBJECT_SIGNATURE, NULL, NULL); - if (ret < 0) { - br_log_object (this, "fgetxattr", fd->inode->gfid, -ret); - goto out; - } - - ret = dict_get_ptr - (*xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, (void **) sign); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, - "failed to extract signature info [GFID: %s]", - uuid_utoa (fd->inode->gfid)); - goto unref_dict; - } - - return 0; - - unref_dict: - dict_unref (*xattr); - out: - return -1; - + int32_t ret = -1; + + ret = syncop_fgetxattr(child->xl, fd, xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, + NULL, NULL); + if (ret < 0) { + br_log_object(this, "fgetxattr", fd->inode->gfid, -ret); + goto out; + } + + ret = dict_get_ptr(*xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, (void **)sign); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, + "failed to extract signature info [GFID: %s]", + uuid_utoa(fd->inode->gfid)); + goto unref_dict; + } + + return 0; + +unref_dict: + dict_unref(*xattr); +out: + return -1; } /** @@ -85,88 +84,87 @@ bitd_fetch_signature (xlator_t *this, br_child_t *child, */ int32_t -bitd_scrub_post_compute_check (xlator_t *this, - br_child_t *child, - fd_t *fd, unsigned long version, - br_isignature_out_t **signature, - br_scrub_stats_t *scrub_stat, - gf_boolean_t skip_stat) +bitd_scrub_post_compute_check(xlator_t *this, br_child_t *child, fd_t *fd, + unsigned long version, + br_isignature_out_t **signature, + br_scrub_stats_t *scrub_stat, + gf_boolean_t skip_stat) { - int32_t ret = 0; - size_t signlen = 0; - dict_t *xattr = NULL; - br_isignature_out_t *signptr = NULL; - - ret = bitd_fetch_signature (this, child, fd, &xattr, &signptr); - if (ret < 0) { - if (!skip_stat) - br_inc_unsigned_file_count (scrub_stat); - goto out; - } - - /** - * Either the object got dirtied during the time the signature was - * calculated OR the version we saved during pre-compute check does - * not match now, implying that the object got dirtied and signed in - * between scrubs pre & post compute checks (checksum window). - * - * The log entry looks pretty ugly, but helps in debugging.. - */ - if (signptr->stale || (signptr->version != version)) { - if (!skip_stat) - br_inc_unsigned_file_count (scrub_stat); - gf_msg_debug (this->name, 0, "<STAGE: POST> Object [GFID: %s] " - "either has a stale signature OR underwent " - "signing during checksumming {Stale: %d | " - "Version: %lu,%lu}", uuid_utoa (fd->inode->gfid), - (signptr->stale) ? 1 : 0, version, - signptr->version); - ret = -1; - goto unref_dict; - } - - signlen = signptr->signaturelen; - *signature = GF_CALLOC (1, sizeof (br_isignature_out_t) + signlen, - gf_common_mt_char); - - (void) memcpy (*signature, signptr, - sizeof (br_isignature_out_t) + signlen); - - unref_dict: - dict_unref (xattr); - out: - return ret; + int32_t ret = 0; + size_t signlen = 0; + dict_t *xattr = NULL; + br_isignature_out_t *signptr = NULL; + ret = bitd_fetch_signature(this, child, fd, &xattr, &signptr); + if (ret < 0) { + if (!skip_stat) + br_inc_unsigned_file_count(scrub_stat); + goto out; + } + + /** + * Either the object got dirtied during the time the signature was + * calculated OR the version we saved during pre-compute check does + * not match now, implying that the object got dirtied and signed in + * between scrubs pre & post compute checks (checksum window). + * + * The log entry looks pretty ugly, but helps in debugging.. + */ + if (signptr->stale || (signptr->version != version)) { + if (!skip_stat) + br_inc_unsigned_file_count(scrub_stat); + gf_msg_debug(this->name, 0, + "<STAGE: POST> Object [GFID: %s] " + "either has a stale signature OR underwent " + "signing during checksumming {Stale: %d | " + "Version: %lu,%lu}", + uuid_utoa(fd->inode->gfid), (signptr->stale) ? 1 : 0, + version, signptr->version); + ret = -1; + goto unref_dict; + } + + signlen = signptr->signaturelen; + *signature = GF_MALLOC(sizeof(br_isignature_out_t) + signlen, + gf_common_mt_char); + + (void)memcpy(*signature, signptr, sizeof(br_isignature_out_t) + signlen); + + (*signature)->signaturelen = signlen; + +unref_dict: + dict_unref(xattr); +out: + return ret; } static int32_t -bitd_signature_staleness (xlator_t *this, - br_child_t *child, fd_t *fd, - int *stale, unsigned long *version, - br_scrub_stats_t *scrub_stat, gf_boolean_t skip_stat) +bitd_signature_staleness(xlator_t *this, br_child_t *child, fd_t *fd, + int *stale, unsigned long *version, + br_scrub_stats_t *scrub_stat, gf_boolean_t skip_stat) { - int32_t ret = -1; - dict_t *xattr = NULL; - br_isignature_out_t *signptr = NULL; + int32_t ret = -1; + dict_t *xattr = NULL; + br_isignature_out_t *signptr = NULL; - ret = bitd_fetch_signature (this, child, fd, &xattr, &signptr); - if (ret < 0) { - if (!skip_stat) - br_inc_unsigned_file_count (scrub_stat); - goto out; - } + ret = bitd_fetch_signature(this, child, fd, &xattr, &signptr); + if (ret < 0) { + if (!skip_stat) + br_inc_unsigned_file_count(scrub_stat); + goto out; + } - /** - * save verison for validation in post compute stage - * c.f. bitd_scrub_post_compute_check() - */ - *stale = signptr->stale ? 1 : 0; - *version = signptr->version; + /** + * save version for validation in post compute stage + * c.f. bitd_scrub_post_compute_check() + */ + *stale = signptr->stale ? 1 : 0; + *version = signptr->version; - dict_unref (xattr); + dict_unref(xattr); - out: - return ret; +out: + return ret; } /** @@ -178,99 +176,102 @@ bitd_signature_staleness (xlator_t *this, * - has stale signature */ int32_t -bitd_scrub_pre_compute_check (xlator_t *this, br_child_t *child, - fd_t *fd, unsigned long *version, - br_scrub_stats_t *scrub_stat, - gf_boolean_t skip_stat) +bitd_scrub_pre_compute_check(xlator_t *this, br_child_t *child, fd_t *fd, + unsigned long *version, + br_scrub_stats_t *scrub_stat, + gf_boolean_t skip_stat) { - int stale = 0; - int32_t ret = -1; - - if (bitd_is_bad_file (this, child, NULL, fd)) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_SKIP_OBJECT, - "Object [GFID: %s] is marked corrupted, skipping..", - uuid_utoa (fd->inode->gfid)); - goto out; - } - - ret = bitd_signature_staleness (this, child, fd, &stale, version, - scrub_stat, skip_stat); - if (!ret && stale) { - if (!skip_stat) - br_inc_unsigned_file_count (scrub_stat); - gf_msg_debug (this->name, 0, "<STAGE: PRE> Object [GFID: %s] " - "has stale signature", - uuid_utoa (fd->inode->gfid)); - ret = -1; - } + int stale = 0; + int32_t ret = -1; + + if (bitd_is_bad_file(this, child, NULL, fd)) { + gf_msg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SKIP_OBJECT, + "Object [GFID: %s] is marked corrupted, skipping..", + uuid_utoa(fd->inode->gfid)); + goto out; + } + + ret = bitd_signature_staleness(this, child, fd, &stale, version, scrub_stat, + skip_stat); + if (!ret && stale) { + if (!skip_stat) + br_inc_unsigned_file_count(scrub_stat); + gf_msg_debug(this->name, 0, + "<STAGE: PRE> Object [GFID: %s] " + "has stale signature", + uuid_utoa(fd->inode->gfid)); + ret = -1; + } - out: - return ret; +out: + return ret; } /* static int */ int -bitd_compare_ckum (xlator_t *this, - br_isignature_out_t *sign, - unsigned char *md, inode_t *linked_inode, - gf_dirent_t *entry, fd_t *fd, br_child_t *child, loc_t *loc) +bitd_compare_ckum(xlator_t *this, br_isignature_out_t *sign, unsigned char *md, + inode_t *linked_inode, gf_dirent_t *entry, fd_t *fd, + br_child_t *child, loc_t *loc) { - int ret = -1; - dict_t *xattr = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, sign, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - GF_VALIDATE_OR_GOTO (this->name, linked_inode, out); - GF_VALIDATE_OR_GOTO (this->name, md, out); - GF_VALIDATE_OR_GOTO (this->name, entry, out); - - if (strncmp - (sign->signature, (char *) md, strlen (sign->signature)) == 0) { - gf_msg_debug (this->name, 0, "%s [GFID: %s | Brick: %s] " - "matches calculated checksum", loc->path, - uuid_utoa (linked_inode->gfid), - child->brick_path); - return 0; - } - - gf_msg (this->name, GF_LOG_DEBUG, 0, BRB_MSG_CHECKSUM_MISMATCH, - "Object checksum mismatch: %s [GFID: %s | Brick: %s]", - loc->path, uuid_utoa (linked_inode->gfid), child->brick_path); - gf_msg (this->name, GF_LOG_ALERT, 0, BRB_MSG_CHECKSUM_MISMATCH, - "CORRUPTION DETECTED: Object %s {Brick: %s | GFID: %s}", - loc->path, child->brick_path, uuid_utoa (linked_inode->gfid)); - - /* Perform bad-file marking */ - xattr = dict_new (); - if (!xattr) { - ret = -1; - goto out; - } - - ret = dict_set_int32 (xattr, BITROT_OBJECT_BAD_KEY, _gf_true); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_MARK_BAD_FILE, - "Error setting bad-file marker for %s [GFID: %s | " - "Brick: %s]", loc->path, uuid_utoa (linked_inode->gfid), - child->brick_path); - goto dictfree; - } - - gf_msg (this->name, GF_LOG_ALERT, 0, BRB_MSG_MARK_CORRUPTED, "Marking" - " %s [GFID: %s | Brick: %s] as corrupted..", loc->path, - uuid_utoa (linked_inode->gfid), child->brick_path); - ret = syncop_fsetxattr (child->xl, fd, xattr, 0, NULL, NULL); - if (ret) - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_MARK_BAD_FILE, - "Error marking object %s [GFID: %s] as corrupted", - loc->path, uuid_utoa (linked_inode->gfid)); - - dictfree: - dict_unref (xattr); - out: - return ret; + int ret = -1; + dict_t *xattr = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, sign, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); + GF_VALIDATE_OR_GOTO(this->name, linked_inode, out); + GF_VALIDATE_OR_GOTO(this->name, md, out); + GF_VALIDATE_OR_GOTO(this->name, entry, out); + + if (strncmp(sign->signature, (char *)md, sign->signaturelen) == 0) { + gf_msg_debug(this->name, 0, + "%s [GFID: %s | Brick: %s] " + "matches calculated checksum", + loc->path, uuid_utoa(linked_inode->gfid), + child->brick_path); + return 0; + } + + gf_msg(this->name, GF_LOG_DEBUG, 0, BRB_MSG_CHECKSUM_MISMATCH, + "Object checksum mismatch: %s [GFID: %s | Brick: %s]", loc->path, + uuid_utoa(linked_inode->gfid), child->brick_path); + gf_msg(this->name, GF_LOG_ALERT, 0, BRB_MSG_CHECKSUM_MISMATCH, + "CORRUPTION DETECTED: Object %s {Brick: %s | GFID: %s}", loc->path, + child->brick_path, uuid_utoa(linked_inode->gfid)); + + /* Perform bad-file marking */ + xattr = dict_new(); + if (!xattr) { + ret = -1; + goto out; + } + + ret = dict_set_int32(xattr, BITROT_OBJECT_BAD_KEY, _gf_true); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_MARK_BAD_FILE, + "Error setting bad-file marker for %s [GFID: %s | " + "Brick: %s]", + loc->path, uuid_utoa(linked_inode->gfid), child->brick_path); + goto dictfree; + } + + gf_msg(this->name, GF_LOG_ALERT, 0, BRB_MSG_MARK_CORRUPTED, + "Marking" + " %s [GFID: %s | Brick: %s] as corrupted..", + loc->path, uuid_utoa(linked_inode->gfid), child->brick_path); + gf_event(EVENT_BITROT_BAD_FILE, "gfid=%s;path=%s;brick=%s", + uuid_utoa(linked_inode->gfid), loc->path, child->brick_path); + ret = syncop_fsetxattr(child->xl, fd, xattr, 0, NULL, NULL); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_MARK_BAD_FILE, + "Error marking object %s [GFID: %s] as corrupted", loc->path, + uuid_utoa(linked_inode->gfid)); + +dictfree: + dict_unref(xattr); +out: + return ret; } /** @@ -281,540 +282,550 @@ bitd_compare_ckum (xlator_t *this, * signs with SHA256). */ int -br_scrubber_scrub_begin (xlator_t *this, struct br_fsscan_entry *fsentry) +br_scrubber_scrub_begin(xlator_t *this, struct br_fsscan_entry *fsentry) { - int32_t ret = -1; - fd_t *fd = NULL; - loc_t loc = {0, }; - struct iatt iatt = {0, }; - struct iatt parent_buf = {0, }; - pid_t pid = 0; - br_child_t *child = NULL; - unsigned char *md = NULL; - inode_t *linked_inode = NULL; - br_isignature_out_t *sign = NULL; - unsigned long signedversion = 0; - gf_dirent_t *entry = NULL; - br_private_t *priv = NULL; - loc_t *parent = NULL; - gf_boolean_t skip_stat = _gf_false; - uuid_t shard_root_gfid = {0,}; - - - GF_VALIDATE_OR_GOTO ("bit-rot", fsentry, out); - - entry = fsentry->entry; - parent = &fsentry->parent; - child = fsentry->data; - - priv = this->private; - - GF_VALIDATE_OR_GOTO ("bit-rot", entry, out); - GF_VALIDATE_OR_GOTO ("bit-rot", parent, out); - GF_VALIDATE_OR_GOTO ("bit-rot", child, out); - GF_VALIDATE_OR_GOTO ("bit-rot", priv, out); - - pid = GF_CLIENT_PID_SCRUB; - - ret = br_prepare_loc (this, child, parent, entry, &loc); - if (!ret) - goto out; - - syncopctx_setfspid (&pid); - - ret = syncop_lookup (child->xl, &loc, &iatt, &parent_buf, NULL, NULL); - if (ret) { - br_log_object_path (this, "lookup", loc.path, -ret); - goto out; - } - - linked_inode = inode_link (loc.inode, parent->inode, loc.name, &iatt); - if (linked_inode) - inode_lookup (linked_inode); - - gf_msg_debug (this->name, 0, "Scrubbing object %s [GFID: %s]", - entry->d_name, uuid_utoa (linked_inode->gfid)); - - if (iatt.ia_type != IA_IFREG) { - gf_msg_debug (this->name, 0, "%s is not a regular file", - entry->d_name); - ret = 0; - goto unref_inode; - } - - if (IS_DHT_LINKFILE_MODE ((&iatt))) { - gf_msg_debug (this->name, 0, "%s is a dht sticky bit file", - entry->d_name); - ret = 0; - goto unref_inode; - } - - /* skip updating scrub statistics for shard entries */ - gf_uuid_parse (SHARD_ROOT_GFID, shard_root_gfid); - if (gf_uuid_compare (loc.pargfid, shard_root_gfid) == 0) - skip_stat = _gf_true; - - /** - * open() an fd for subsequent opertaions - */ - fd = fd_create (linked_inode, 0); - if (!fd) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, - "failed to create fd for inode %s", - uuid_utoa (linked_inode->gfid)); - goto unref_inode; - } - - ret = syncop_open (child->xl, &loc, O_RDWR, fd, NULL, NULL); - if (ret) { - br_log_object (this, "open", linked_inode->gfid, -ret); - ret = -1; - goto unrefd; - } - - fd_bind (fd); - - /** - * perform pre compute checks before initiating checksum - * computation - * - presence of bad object - * - signature staleness - */ - ret = bitd_scrub_pre_compute_check (this, child, fd, &signedversion, - &priv->scrub_stat, skip_stat); - if (ret) - goto unrefd; /* skip this object */ - - /* if all's good, proceed to calculate the hash */ - md = GF_CALLOC (SHA256_DIGEST_LENGTH, sizeof (*md), - gf_common_mt_char); - if (!md) - goto unrefd; - - ret = br_calculate_obj_checksum (md, child, fd, &iatt); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_CALC_ERROR, - "error calculating hash for object [GFID: %s]", - uuid_utoa (fd->inode->gfid)); - ret = -1; - goto free_md; - } - - /** - * perform post compute checks as an object's signature may have - * become stale while scrubber calculated checksum. - */ - ret = bitd_scrub_post_compute_check (this, child, fd, signedversion, - &sign, &priv->scrub_stat, - skip_stat); - if (ret) - goto free_md; - - ret = bitd_compare_ckum (this, sign, md, - linked_inode, entry, fd, child, &loc); - - if (!skip_stat) - br_inc_scrubbed_file (&priv->scrub_stat); - - GF_FREE (sign); /* alloced on post-compute */ - - /** fd_unref() takes care of closing fd.. like syncop_close() */ + int32_t ret = -1; + fd_t *fd = NULL; + loc_t loc = { + 0, + }; + struct iatt iatt = { + 0, + }; + struct iatt parent_buf = { + 0, + }; + pid_t pid = 0; + br_child_t *child = NULL; + unsigned char *md = NULL; + inode_t *linked_inode = NULL; + br_isignature_out_t *sign = NULL; + unsigned long signedversion = 0; + gf_dirent_t *entry = NULL; + br_private_t *priv = NULL; + loc_t *parent = NULL; + gf_boolean_t skip_stat = _gf_false; + uuid_t shard_root_gfid = { + 0, + }; + + GF_VALIDATE_OR_GOTO("bit-rot", fsentry, out); + + entry = fsentry->entry; + parent = &fsentry->parent; + child = fsentry->data; + + priv = this->private; + + GF_VALIDATE_OR_GOTO("bit-rot", entry, out); + GF_VALIDATE_OR_GOTO("bit-rot", parent, out); + GF_VALIDATE_OR_GOTO("bit-rot", child, out); + GF_VALIDATE_OR_GOTO("bit-rot", priv, out); + + pid = GF_CLIENT_PID_SCRUB; + + ret = br_prepare_loc(this, child, parent, entry, &loc); + if (!ret) + goto out; + + syncopctx_setfspid(&pid); + + ret = syncop_lookup(child->xl, &loc, &iatt, &parent_buf, NULL, NULL); + if (ret) { + br_log_object_path(this, "lookup", loc.path, -ret); + goto out; + } + + linked_inode = inode_link(loc.inode, parent->inode, loc.name, &iatt); + if (linked_inode) + inode_lookup(linked_inode); + + gf_msg_debug(this->name, 0, "Scrubbing object %s [GFID: %s]", entry->d_name, + uuid_utoa(linked_inode->gfid)); + + if (iatt.ia_type != IA_IFREG) { + gf_msg_debug(this->name, 0, "%s is not a regular file", entry->d_name); + ret = 0; + goto unref_inode; + } - free_md: - GF_FREE (md); - unrefd: - fd_unref (fd); - unref_inode: - inode_unref (linked_inode); - out: - loc_wipe (&loc); - return ret; + if (IS_DHT_LINKFILE_MODE((&iatt))) { + gf_msg_debug(this->name, 0, "%s is a dht sticky bit file", + entry->d_name); + ret = 0; + goto unref_inode; + } + + /* skip updating scrub statistics for shard entries */ + gf_uuid_parse(SHARD_ROOT_GFID, shard_root_gfid); + if (gf_uuid_compare(loc.pargfid, shard_root_gfid) == 0) + skip_stat = _gf_true; + + /** + * open() an fd for subsequent operations + */ + fd = fd_create(linked_inode, 0); + if (!fd) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, + "failed to create fd for inode %s", + uuid_utoa(linked_inode->gfid)); + goto unref_inode; + } + + ret = syncop_open(child->xl, &loc, O_RDWR, fd, NULL, NULL); + if (ret) { + br_log_object(this, "open", linked_inode->gfid, -ret); + ret = -1; + goto unrefd; + } + + fd_bind(fd); + + /** + * perform pre compute checks before initiating checksum + * computation + * - presence of bad object + * - signature staleness + */ + ret = bitd_scrub_pre_compute_check(this, child, fd, &signedversion, + &priv->scrub_stat, skip_stat); + if (ret) + goto unrefd; /* skip this object */ + + /* if all's good, proceed to calculate the hash */ + md = GF_MALLOC(SHA256_DIGEST_LENGTH, gf_common_mt_char); + if (!md) + goto unrefd; + + ret = br_calculate_obj_checksum(md, child, fd, &iatt); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_CALC_ERROR, + "error calculating hash for object [GFID: %s]", + uuid_utoa(fd->inode->gfid)); + ret = -1; + goto free_md; + } + + /** + * perform post compute checks as an object's signature may have + * become stale while scrubber calculated checksum. + */ + ret = bitd_scrub_post_compute_check(this, child, fd, signedversion, &sign, + &priv->scrub_stat, skip_stat); + if (ret) + goto free_md; + + ret = bitd_compare_ckum(this, sign, md, linked_inode, entry, fd, child, + &loc); + + if (!skip_stat) + br_inc_scrubbed_file(&priv->scrub_stat); + + GF_FREE(sign); /* allocated on post-compute */ + + /** fd_unref() takes care of closing fd.. like syncop_close() */ + +free_md: + GF_FREE(md); +unrefd: + fd_unref(fd); +unref_inode: + inode_unref(linked_inode); +out: + loc_wipe(&loc); + return ret; } static void -_br_lock_cleaner (void *arg) +_br_lock_cleaner(void *arg) { - pthread_mutex_t *mutex = arg; + pthread_mutex_t *mutex = arg; - pthread_mutex_unlock (mutex); + pthread_mutex_unlock(mutex); } static void -wait_for_scrubbing (xlator_t *this, struct br_scanfs *fsscan) +wait_for_scrubbing(xlator_t *this, struct br_scanfs *fsscan) { - br_private_t *priv = NULL; - struct br_scrubber *fsscrub = NULL; + br_private_t *priv = NULL; + struct br_scrubber *fsscrub = NULL; - priv = this->private; - fsscrub = &priv->fsscrub; + priv = this->private; + fsscrub = &priv->fsscrub; - pthread_cleanup_push (_br_lock_cleaner, &fsscan->waitlock); - pthread_mutex_lock (&fsscan->waitlock); + pthread_cleanup_push(_br_lock_cleaner, &fsscan->waitlock); + pthread_mutex_lock(&fsscan->waitlock); + { + pthread_cleanup_push(_br_lock_cleaner, &fsscrub->mutex); + pthread_mutex_lock(&fsscrub->mutex); { - pthread_cleanup_push (_br_lock_cleaner, &fsscrub->mutex); - pthread_mutex_lock (&fsscrub->mutex); - { - list_replace_init (&fsscan->queued, &fsscan->ready); - - /* wake up scrubbers */ - pthread_cond_broadcast (&fsscrub->cond); - } - pthread_mutex_unlock (&fsscrub->mutex); - pthread_cleanup_pop (0); - - while (fsscan->entries != 0) - pthread_cond_wait - (&fsscan->waitcond, &fsscan->waitlock); + list_replace_init(&fsscan->queued, &fsscan->ready); + + /* wake up scrubbers */ + pthread_cond_broadcast(&fsscrub->cond); } - pthread_mutex_unlock (&fsscan->waitlock); - pthread_cleanup_pop (0); + pthread_mutex_unlock(&fsscrub->mutex); + pthread_cleanup_pop(0); + + while (fsscan->entries != 0) + pthread_cond_wait(&fsscan->waitcond, &fsscan->waitlock); + } + pthread_mutex_unlock(&fsscan->waitlock); + pthread_cleanup_pop(0); } static void -_br_fsscan_inc_entry_count (struct br_scanfs *fsscan) +_br_fsscan_inc_entry_count(struct br_scanfs *fsscan) { - fsscan->entries++; + fsscan->entries++; } static void -_br_fsscan_dec_entry_count (struct br_scanfs *fsscan) +_br_fsscan_dec_entry_count(struct br_scanfs *fsscan) { - if (--fsscan->entries == 0) { - pthread_mutex_lock (&fsscan->waitlock); - { - pthread_cond_signal (&fsscan->waitcond); - } - pthread_mutex_unlock (&fsscan->waitlock); + if (--fsscan->entries == 0) { + pthread_mutex_lock(&fsscan->waitlock); + { + pthread_cond_signal(&fsscan->waitcond); } + pthread_mutex_unlock(&fsscan->waitlock); + } } static void -_br_fsscan_collect_entry (struct br_scanfs *fsscan, - struct br_fsscan_entry *fsentry) +_br_fsscan_collect_entry(struct br_scanfs *fsscan, + struct br_fsscan_entry *fsentry) { - list_add_tail (&fsentry->list, &fsscan->queued); - _br_fsscan_inc_entry_count (fsscan); + list_add_tail(&fsentry->list, &fsscan->queued); + _br_fsscan_inc_entry_count(fsscan); } -#define NR_ENTRIES (1<<7) /* ..bulk scrubbing */ +#define NR_ENTRIES (1 << 7) /* ..bulk scrubbing */ int -br_fsscanner_handle_entry (xlator_t *subvol, - gf_dirent_t *entry, loc_t *parent, void *data) +br_fsscanner_handle_entry(xlator_t *subvol, gf_dirent_t *entry, loc_t *parent, + void *data) { - int32_t ret = -1; - int scrub = 0; - br_child_t *child = NULL; - xlator_t *this = NULL; - struct br_scanfs *fsscan = NULL; - struct br_fsscan_entry *fsentry = NULL; + int32_t ret = -1; + int scrub = 0; + br_child_t *child = NULL; + xlator_t *this = NULL; + struct br_scanfs *fsscan = NULL; + struct br_fsscan_entry *fsentry = NULL; - GF_VALIDATE_OR_GOTO ("bit-rot", subvol, error_return); - GF_VALIDATE_OR_GOTO ("bit-rot", data, error_return); + GF_VALIDATE_OR_GOTO("bit-rot", subvol, error_return); + GF_VALIDATE_OR_GOTO("bit-rot", data, error_return); - child = data; - this = child->this; - fsscan = &child->fsscan; + child = data; + this = child->this; + fsscan = &child->fsscan; - _mask_cancellation (); + _mask_cancellation(); - fsentry = GF_CALLOC (1, sizeof (*fsentry), gf_br_mt_br_fsscan_entry_t); - if (!fsentry) - goto error_return; + fsentry = GF_CALLOC(1, sizeof(*fsentry), gf_br_mt_br_fsscan_entry_t); + if (!fsentry) + goto error_return; - { - fsentry->data = data; - fsentry->fsscan = &child->fsscan; + { + fsentry->data = data; + fsentry->fsscan = &child->fsscan; - /* copy parent loc */ - ret = loc_copy (&fsentry->parent, parent); - if (ret) - goto dealloc; + /* copy parent loc */ + ret = loc_copy(&fsentry->parent, parent); + if (ret) + goto dealloc; - /* copy child entry */ - fsentry->entry = entry_copy (entry); - if (!fsentry->entry) - goto locwipe; + /* copy child entry */ + fsentry->entry = entry_copy(entry); + if (!fsentry->entry) + goto locwipe; - INIT_LIST_HEAD (&fsentry->list); - } + INIT_LIST_HEAD(&fsentry->list); + } - LOCK (&fsscan->entrylock); - { - _br_fsscan_collect_entry (fsscan, fsentry); - - /** - * need not be a equality check as entries may be pushed - * back onto the scanned queue when thread(s) are cleaned. - */ - if (fsscan->entries >= NR_ENTRIES) - scrub = 1; - } - UNLOCK (&fsscan->entrylock); + LOCK(&fsscan->entrylock); + { + _br_fsscan_collect_entry(fsscan, fsentry); - _unmask_cancellation (); + /** + * need not be a equality check as entries may be pushed + * back onto the scanned queue when thread(s) are cleaned. + */ + if (fsscan->entries >= NR_ENTRIES) + scrub = 1; + } + UNLOCK(&fsscan->entrylock); - if (scrub) - wait_for_scrubbing (this, fsscan); + _unmask_cancellation(); - return 0; + if (scrub) + wait_for_scrubbing(this, fsscan); - locwipe: - loc_wipe (&fsentry->parent); - dealloc: - GF_FREE (fsentry); - error_return: - return -1; + return 0; + +locwipe: + loc_wipe(&fsentry->parent); +dealloc: + GF_FREE(fsentry); +error_return: + return -1; } int32_t -br_fsscan_deactivate (xlator_t *this) +br_fsscan_deactivate(xlator_t *this) { - int ret = 0; - br_private_t *priv = NULL; - br_scrub_state_t nstate = 0; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - scrub_monitor = &priv->scrub_monitor; - - ret = gf_tw_del_timer (priv->timer_wheel, scrub_monitor->timer); - if (ret == 0) { - nstate = BR_SCRUB_STATE_STALLED; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Volume is under active scrubbing. Pausing scrub.."); - } else { - nstate = BR_SCRUB_STATE_PAUSED; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Scrubber paused"); - } - - _br_monitor_set_scrub_state (scrub_monitor, nstate); - - return 0; + int ret = 0; + br_private_t *priv = NULL; + br_scrub_state_t nstate = 0; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + ret = gf_tw_del_timer(priv->timer_wheel, scrub_monitor->timer); + if (ret == 0) { + nstate = BR_SCRUB_STATE_STALLED; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Volume is under active scrubbing. Pausing scrub.."); + } else { + nstate = BR_SCRUB_STATE_PAUSED; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubber paused"); + } + + _br_monitor_set_scrub_state(scrub_monitor, nstate); + + return 0; } static void -br_scrubber_log_time (xlator_t *this, const char *sfx) +br_scrubber_log_time(xlator_t *this, const char *sfx) { - char timestr[1024] = {0,}; - struct timeval tv = {0,}; - br_private_t *priv = NULL; - - priv = this->private; - - gettimeofday (&tv, NULL); - gf_time_fmt (timestr, sizeof (timestr), tv.tv_sec, gf_timefmt_FT); - - if (strcasecmp (sfx, "started") == 0) { - br_update_scrub_start_time (&priv->scrub_stat, &tv); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_START, - "Scrubbing %s at %s", sfx, timestr); - } else { - br_update_scrub_finish_time (&priv->scrub_stat, timestr, &tv); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_FINISH, - "Scrubbing %s at %s", sfx, timestr); - } + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + br_private_t *priv = NULL; + time_t now = 0; + + now = gf_time(); + priv = this->private; + + gf_time_fmt(timestr, sizeof(timestr), now, gf_timefmt_FT); + + if (strcasecmp(sfx, "started") == 0) { + br_update_scrub_start_time(&priv->scrub_stat, now); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_START, + "Scrubbing %s at %s", sfx, timestr); + } else { + br_update_scrub_finish_time(&priv->scrub_stat, timestr, now); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_FINISH, + "Scrubbing %s at %s", sfx, timestr); + } } static void -br_fsscanner_log_time (xlator_t *this, br_child_t *child, const char *sfx) +br_fsscanner_log_time(xlator_t *this, br_child_t *child, const char *sfx) { - char timestr[1024] = {0,}; - struct timeval tv = {0,}; - - gettimeofday (&tv, NULL); - gf_time_fmt (timestr, sizeof (timestr), tv.tv_sec, gf_timefmt_FT); - - if (strcasecmp (sfx, "started") == 0) { - gf_msg_debug (this->name, 0, "Scrubbing \"%s\" %s at %s", - child->brick_path, sfx, timestr); - } else { - gf_msg_debug (this->name, 0, "Scrubbing \"%s\" %s at %s", - child->brick_path, sfx, timestr); - } + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + time_t now = 0; + + now = gf_time(); + gf_time_fmt(timestr, sizeof(timestr), now, gf_timefmt_FT); + + if (strcasecmp(sfx, "started") == 0) { + gf_msg_debug(this->name, 0, "Scrubbing \"%s\" %s at %s", + child->brick_path, sfx, timestr); + } else { + gf_msg_debug(this->name, 0, "Scrubbing \"%s\" %s at %s", + child->brick_path, sfx, timestr); + } } void -br_child_set_scrub_state (br_child_t *child, gf_boolean_t state) +br_child_set_scrub_state(br_child_t *child, gf_boolean_t state) { - child->active_scrubbing = state; + child->active_scrubbing = state; } static void -br_fsscanner_wait_until_kicked (xlator_t *this, br_child_t *child) +br_fsscanner_wait_until_kicked(xlator_t *this, br_child_t *child) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - scrub_monitor = &priv->scrub_monitor; - - pthread_cleanup_push (_br_lock_cleaner, &scrub_monitor->wakelock); - pthread_mutex_lock (&scrub_monitor->wakelock); + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + pthread_cleanup_push(_br_lock_cleaner, &scrub_monitor->wakelock); + pthread_mutex_lock(&scrub_monitor->wakelock); + { + while (!scrub_monitor->kick) + pthread_cond_wait(&scrub_monitor->wakecond, + &scrub_monitor->wakelock); + + /* Child lock is to synchronize with disconnect events */ + pthread_cleanup_push(_br_lock_cleaner, &child->lock); + pthread_mutex_lock(&child->lock); { - while (!scrub_monitor->kick) - pthread_cond_wait (&scrub_monitor->wakecond, - &scrub_monitor->wakelock); - - /* Child lock is to synchronize with disconnect events */ - pthread_cleanup_push (_br_lock_cleaner, &child->lock); - pthread_mutex_lock (&child->lock); - { - scrub_monitor->active_child_count++; - br_child_set_scrub_state (child, _gf_true); - } - pthread_mutex_unlock (&child->lock); - pthread_cleanup_pop (0); + scrub_monitor->active_child_count++; + br_child_set_scrub_state(child, _gf_true); } - pthread_mutex_unlock (&scrub_monitor->wakelock); - pthread_cleanup_pop (0); + pthread_mutex_unlock(&child->lock); + pthread_cleanup_pop(0); + } + pthread_mutex_unlock(&scrub_monitor->wakelock); + pthread_cleanup_pop(0); } static void -br_scrubber_entry_control (xlator_t *this) +br_scrubber_entry_control(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - scrub_monitor = &priv->scrub_monitor; - - LOCK (&scrub_monitor->lock); - { - /* Move the state to BR_SCRUB_STATE_ACTIVE */ - if (scrub_monitor->state == BR_SCRUB_STATE_PENDING) - scrub_monitor->state = BR_SCRUB_STATE_ACTIVE; - br_scrubber_log_time (this, "started"); - priv->scrub_stat.scrub_running = 1; - } - UNLOCK (&scrub_monitor->lock); + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + LOCK(&scrub_monitor->lock); + { + /* Move the state to BR_SCRUB_STATE_ACTIVE */ + if (scrub_monitor->state == BR_SCRUB_STATE_PENDING) + scrub_monitor->state = BR_SCRUB_STATE_ACTIVE; + br_scrubber_log_time(this, "started"); + priv->scrub_stat.scrub_running = 1; + } + UNLOCK(&scrub_monitor->lock); } static void -br_scrubber_exit_control (xlator_t *this) +br_scrubber_exit_control(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; - priv = this->private; - scrub_monitor = &priv->scrub_monitor; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - LOCK (&scrub_monitor->lock); - { - br_scrubber_log_time (this, "finished"); - priv->scrub_stat.scrub_running = 0; - - if (scrub_monitor->state == BR_SCRUB_STATE_ACTIVE) { - (void) br_fsscan_activate (this); - } else { - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Volume waiting to get rescheduled.."); - } + LOCK(&scrub_monitor->lock); + { + br_scrubber_log_time(this, "finished"); + priv->scrub_stat.scrub_running = 0; + + if (scrub_monitor->state == BR_SCRUB_STATE_ACTIVE) { + (void)br_fsscan_activate(this); + } else { + UNLOCK(&scrub_monitor->lock); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Volume waiting to get rescheduled.."); + return; } - UNLOCK (&scrub_monitor->lock); + } + UNLOCK(&scrub_monitor->lock); } static void -br_fsscanner_entry_control (xlator_t *this, br_child_t *child) +br_fsscanner_entry_control(xlator_t *this, br_child_t *child) { - br_fsscanner_log_time (this, child, "started"); + br_fsscanner_log_time(this, child, "started"); } static void -br_fsscanner_exit_control (xlator_t *this, br_child_t *child) +br_fsscanner_exit_control(xlator_t *this, br_child_t *child) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - scrub_monitor = &priv->scrub_monitor; - - if (!_br_is_child_connected (child)) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_SCRUB_INFO, - "Brick [%s] disconnected while scrubbing. Scrubbing " - "might be incomplete", child->brick_path); - } - - br_fsscanner_log_time (this, child, "finished"); - - pthread_cleanup_push (_br_lock_cleaner, &scrub_monitor->wakelock); - pthread_mutex_lock (&scrub_monitor->wakelock); + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + if (!_br_is_child_connected(child)) { + gf_msg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SCRUB_INFO, + "Brick [%s] disconnected while scrubbing. Scrubbing " + "might be incomplete", + child->brick_path); + } + + br_fsscanner_log_time(this, child, "finished"); + + pthread_cleanup_push(_br_lock_cleaner, &scrub_monitor->wakelock); + pthread_mutex_lock(&scrub_monitor->wakelock); + { + scrub_monitor->active_child_count--; + pthread_cleanup_push(_br_lock_cleaner, &child->lock); + pthread_mutex_lock(&child->lock); { - scrub_monitor->active_child_count--; - pthread_cleanup_push (_br_lock_cleaner, &child->lock); - pthread_mutex_lock (&child->lock); - { - br_child_set_scrub_state (child, _gf_false); - } - pthread_mutex_unlock (&child->lock); - pthread_cleanup_pop (0); - - if (scrub_monitor->active_child_count == 0) { - /* The last child has finished scrubbing. - * Set the kick to false and wake up other - * children who are waiting for the last - * child to complete scrubbing. - */ - scrub_monitor->kick = _gf_false; - pthread_cond_broadcast (&scrub_monitor->wakecond); - - /* Signal monitor thread waiting for the all - * the children to finish scrubbing. - */ - pthread_cleanup_push (_br_lock_cleaner, - &scrub_monitor->donelock); - pthread_mutex_lock (&scrub_monitor->donelock); - { - scrub_monitor->done = _gf_true; - pthread_cond_signal (&scrub_monitor->donecond); - } - pthread_mutex_unlock (&scrub_monitor->donelock); - pthread_cleanup_pop (0); - } else { - while (scrub_monitor->active_child_count) - pthread_cond_wait (&scrub_monitor->wakecond, - &scrub_monitor->wakelock); - } + br_child_set_scrub_state(child, _gf_false); + } + pthread_mutex_unlock(&child->lock); + pthread_cleanup_pop(0); + + if (scrub_monitor->active_child_count == 0) { + /* The last child has finished scrubbing. + * Set the kick to false and wake up other + * children who are waiting for the last + * child to complete scrubbing. + */ + scrub_monitor->kick = _gf_false; + pthread_cond_broadcast(&scrub_monitor->wakecond); + + /* Signal monitor thread waiting for the all + * the children to finish scrubbing. + */ + pthread_cleanup_push(_br_lock_cleaner, &scrub_monitor->donelock); + pthread_mutex_lock(&scrub_monitor->donelock); + { + scrub_monitor->done = _gf_true; + pthread_cond_signal(&scrub_monitor->donecond); + } + pthread_mutex_unlock(&scrub_monitor->donelock); + pthread_cleanup_pop(0); + } else { + while (scrub_monitor->active_child_count) + pthread_cond_wait(&scrub_monitor->wakecond, + &scrub_monitor->wakelock); } - pthread_mutex_unlock (&scrub_monitor->wakelock); - pthread_cleanup_pop (0); + } + pthread_mutex_unlock(&scrub_monitor->wakelock); + pthread_cleanup_pop(0); } void * -br_fsscanner (void *arg) +br_fsscanner(void *arg) { - loc_t loc = {0,}; - br_child_t *child = NULL; - xlator_t *this = NULL; - struct br_scanfs *fsscan = NULL; - - child = arg; - this = child->this; - fsscan = &child->fsscan; - - THIS = this; - loc.inode = child->table->root; - - while (1) { - br_fsscanner_wait_until_kicked (this, child); - { - /* precursor for scrub */ - br_fsscanner_entry_control (this, child); - - /* scrub */ - (void) syncop_ftw (child->xl, - &loc, GF_CLIENT_PID_SCRUB, - child, br_fsscanner_handle_entry); - if (!list_empty (&fsscan->queued)) - wait_for_scrubbing (this, fsscan); - - /* scrub exit criteria */ - br_fsscanner_exit_control (this, child); - } + loc_t loc = { + 0, + }; + br_child_t *child = NULL; + xlator_t *this = NULL; + struct br_scanfs *fsscan = NULL; + + child = arg; + this = child->this; + fsscan = &child->fsscan; + + THIS = this; + loc.inode = child->table->root; + + while (1) { + br_fsscanner_wait_until_kicked(this, child); + { + /* precursor for scrub */ + br_fsscanner_entry_control(this, child); + + /* scrub */ + (void)syncop_ftw(child->xl, &loc, GF_CLIENT_PID_SCRUB, child, + br_fsscanner_handle_entry); + if (!list_empty(&fsscan->queued)) + wait_for_scrubbing(this, fsscan); + + /* scrub exit criteria */ + br_fsscanner_exit_control(this, child); } + } - return NULL; + return NULL; } /** @@ -825,220 +836,268 @@ br_fsscanner (void *arg) * non-pending timer. */ void -br_kickstart_scanner (struct gf_tw_timer_list *timer, - void *data, unsigned long calltime) +br_kickstart_scanner(struct gf_tw_timer_list *timer, void *data, + unsigned long calltime) { - xlator_t *this = NULL; - struct br_monitor *scrub_monitor = data; - br_private_t *priv = NULL; - - THIS = this = scrub_monitor->this; - priv = this->private; - - /* Reset scrub statistics */ - priv->scrub_stat.scrubbed_files = 0; - priv->scrub_stat.unsigned_files = 0; - - /* Moves state from PENDING to ACTIVE */ - (void) br_scrubber_entry_control (this); - - /* kickstart scanning.. */ - pthread_mutex_lock (&scrub_monitor->wakelock); - { - scrub_monitor->kick = _gf_true; - GF_ASSERT (scrub_monitor->active_child_count == 0); - pthread_cond_broadcast (&scrub_monitor->wakecond); - } - pthread_mutex_unlock (&scrub_monitor->wakelock); - - return; + xlator_t *this = NULL; + struct br_monitor *scrub_monitor = data; + br_private_t *priv = NULL; + + THIS = this = scrub_monitor->this; + priv = this->private; + + /* Reset scrub statistics */ + priv->scrub_stat.scrubbed_files = 0; + priv->scrub_stat.unsigned_files = 0; + + /* Moves state from PENDING to ACTIVE */ + (void)br_scrubber_entry_control(this); + + /* kickstart scanning.. */ + pthread_mutex_lock(&scrub_monitor->wakelock); + { + scrub_monitor->kick = _gf_true; + GF_ASSERT(scrub_monitor->active_child_count == 0); + pthread_cond_broadcast(&scrub_monitor->wakecond); + } + pthread_mutex_unlock(&scrub_monitor->wakelock); + + return; } static uint32_t -br_fsscan_calculate_delta (uint32_t times) +br_fsscan_calculate_delta(uint32_t times) { - return times; + return times; } -#define BR_SCRUB_MINUTE (60) -#define BR_SCRUB_HOURLY (60 * 60) -#define BR_SCRUB_DAILY (1 * 24 * 60 * 60) -#define BR_SCRUB_WEEKLY (7 * 24 * 60 * 60) -#define BR_SCRUB_BIWEEKLY (14 * 24 * 60 * 60) -#define BR_SCRUB_MONTHLY (30 * 24 * 60 * 60) +#define BR_SCRUB_ONDEMAND (1) +#define BR_SCRUB_MINUTE (60) +#define BR_SCRUB_HOURLY (60 * 60) +#define BR_SCRUB_DAILY (1 * 24 * 60 * 60) +#define BR_SCRUB_WEEKLY (7 * 24 * 60 * 60) +#define BR_SCRUB_BIWEEKLY (14 * 24 * 60 * 60) +#define BR_SCRUB_MONTHLY (30 * 24 * 60 * 60) static unsigned int -br_fsscan_calculate_timeout (scrub_freq_t freq) +br_fsscan_calculate_timeout(scrub_freq_t freq) { - uint32_t timo = 0; + uint32_t timo = 0; - switch (freq) { + switch (freq) { case BR_FSSCRUB_FREQ_MINUTE: - timo = br_fsscan_calculate_delta (BR_SCRUB_MINUTE); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_MINUTE); + break; case BR_FSSCRUB_FREQ_HOURLY: - timo = br_fsscan_calculate_delta (BR_SCRUB_HOURLY); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_HOURLY); + break; case BR_FSSCRUB_FREQ_DAILY: - timo = br_fsscan_calculate_delta (BR_SCRUB_DAILY); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_DAILY); + break; case BR_FSSCRUB_FREQ_WEEKLY: - timo = br_fsscan_calculate_delta (BR_SCRUB_WEEKLY); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_WEEKLY); + break; case BR_FSSCRUB_FREQ_BIWEEKLY: - timo = br_fsscan_calculate_delta (BR_SCRUB_BIWEEKLY); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_BIWEEKLY); + break; case BR_FSSCRUB_FREQ_MONTHLY: - timo = br_fsscan_calculate_delta (BR_SCRUB_MONTHLY); - break; + timo = br_fsscan_calculate_delta(BR_SCRUB_MONTHLY); + break; default: - timo = 0; - } + timo = 0; + } - return timo; + return timo; } int32_t -br_fsscan_schedule (xlator_t *this) +br_fsscan_schedule(xlator_t *this) { - uint32_t timo = 0; - br_private_t *priv = NULL; - struct timeval tv = {0,}; - char timestr[1024] = {0,}; - struct br_scrubber *fsscrub = NULL; - struct gf_tw_timer_list *timer = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - fsscrub = &priv->fsscrub; - scrub_monitor = &priv->scrub_monitor; - - (void) gettimeofday (&tv, NULL); - scrub_monitor->boot = tv.tv_sec; - - timo = br_fsscan_calculate_timeout (fsscrub->frequency); - if (timo == 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, - "BUG: Zero schedule timeout"); - goto error_return; - } - - scrub_monitor->timer = GF_CALLOC (1, sizeof (*scrub_monitor->timer), - gf_br_stub_mt_br_scanner_freq_t); - if (!scrub_monitor->timer) - goto error_return; - - timer = scrub_monitor->timer; - INIT_LIST_HEAD (&timer->entry); + uint32_t timo = 0; + br_private_t *priv = NULL; + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + struct br_scrubber *fsscrub = NULL; + struct gf_tw_timer_list *timer = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + fsscrub = &priv->fsscrub; + scrub_monitor = &priv->scrub_monitor; + + scrub_monitor->boot = gf_time(); + + timo = br_fsscan_calculate_timeout(fsscrub->frequency); + if (timo == 0) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, + "BUG: Zero schedule timeout"); + goto error_return; + } + + scrub_monitor->timer = GF_CALLOC(1, sizeof(*scrub_monitor->timer), + gf_br_stub_mt_br_scanner_freq_t); + if (!scrub_monitor->timer) + goto error_return; + + timer = scrub_monitor->timer; + INIT_LIST_HEAD(&timer->entry); + + timer->data = scrub_monitor; + timer->expires = timo; + timer->function = br_kickstart_scanner; + + gf_tw_add_timer(priv->timer_wheel, timer); + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_PENDING); + + gf_time_fmt(timestr, sizeof(timestr), (scrub_monitor->boot + timo), + gf_timefmt_FT); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubbing is " + "scheduled to run at %s", + timestr); + + return 0; + +error_return: + return -1; +} - timer->data = scrub_monitor; - timer->expires = timo; - timer->function = br_kickstart_scanner; +int32_t +br_fsscan_activate(xlator_t *this) +{ + uint32_t timo = 0; + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + time_t now = 0; + br_private_t *priv = NULL; + struct br_scrubber *fsscrub = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + fsscrub = &priv->fsscrub; + scrub_monitor = &priv->scrub_monitor; + + now = gf_time(); + timo = br_fsscan_calculate_timeout(fsscrub->frequency); + if (timo == 0) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, + "BUG: Zero schedule timeout"); + return -1; + } - gf_tw_add_timer (priv->timer_wheel, timer); - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_PENDING); + pthread_mutex_lock(&scrub_monitor->donelock); + { + scrub_monitor->done = _gf_false; + } + pthread_mutex_unlock(&scrub_monitor->donelock); - gf_time_fmt (timestr, sizeof (timestr), - (scrub_monitor->boot + timo), gf_timefmt_FT); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, "Scrubbing is " - "scheduled to run at %s", timestr); + gf_time_fmt(timestr, sizeof(timestr), now + timo, gf_timefmt_FT); + (void)gf_tw_mod_timer(priv->timer_wheel, scrub_monitor->timer, timo); - return 0; + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_PENDING); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubbing is " + "rescheduled to run at %s", + timestr); - error_return: - return -1; + return 0; } int32_t -br_fsscan_activate (xlator_t *this) +br_fsscan_reschedule(xlator_t *this) { - uint32_t timo = 0; - char timestr[1024] = {0,}; - struct timeval now = {0,}; - br_private_t *priv = NULL; - struct br_scrubber *fsscrub = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - fsscrub = &priv->fsscrub; - scrub_monitor = &priv->scrub_monitor; - - (void) gettimeofday (&now, NULL); - timo = br_fsscan_calculate_timeout (fsscrub->frequency); - if (timo == 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, - "BUG: Zero schedule timeout"); - return -1; - } - - pthread_mutex_lock (&scrub_monitor->donelock); - { - scrub_monitor->done = _gf_false; - } - pthread_mutex_unlock (&scrub_monitor->donelock); + int32_t ret = 0; + uint32_t timo = 0; + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + time_t now = 0; + br_private_t *priv = NULL; + struct br_scrubber *fsscrub = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + fsscrub = &priv->fsscrub; + scrub_monitor = &priv->scrub_monitor; + + if (!fsscrub->frequency_reconf) + return 0; - gf_time_fmt (timestr, sizeof (timestr), - (now.tv_sec + timo), gf_timefmt_FT); - (void) gf_tw_mod_timer (priv->timer_wheel, scrub_monitor->timer, timo); + now = gf_time(); + timo = br_fsscan_calculate_timeout(fsscrub->frequency); + if (timo == 0) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, + "BUG: Zero schedule timeout"); + return -1; + } - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_PENDING); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, "Scrubbing is " - "rescheduled to run at %s", timestr); + gf_time_fmt(timestr, sizeof(timestr), now + timo, gf_timefmt_FT); - return 0; + pthread_mutex_lock(&scrub_monitor->donelock); + { + scrub_monitor->done = _gf_false; + } + pthread_mutex_unlock(&scrub_monitor->donelock); + + ret = gf_tw_mod_timer_pending(priv->timer_wheel, scrub_monitor->timer, + timo); + if (ret == 0) + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubber is currently running and would be " + "rescheduled after completion"); + else { + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_PENDING); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubbing rescheduled to run at %s", timestr); + } + + return 0; } int32_t -br_fsscan_reschedule (xlator_t *this) +br_fsscan_ondemand(xlator_t *this) { - int32_t ret = 0; - uint32_t timo = 0; - char timestr[1024] = {0,}; - struct timeval now = {0,}; - br_private_t *priv = NULL; - struct br_scrubber *fsscrub = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - fsscrub = &priv->fsscrub; - scrub_monitor = &priv->scrub_monitor; - - if (!fsscrub->frequency_reconf) - return 0; - - (void) gettimeofday (&now, NULL); - timo = br_fsscan_calculate_timeout (fsscrub->frequency); - if (timo == 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_ZERO_TIMEOUT_BUG, - "BUG: Zero schedule timeout"); - return -1; - } - - gf_time_fmt (timestr, sizeof (timestr), - (now.tv_sec + timo), gf_timefmt_FT); - - pthread_mutex_lock (&scrub_monitor->donelock); - { - scrub_monitor->done = _gf_false; - } - pthread_mutex_unlock (&scrub_monitor->donelock); - - ret = gf_tw_mod_timer_pending (priv->timer_wheel, scrub_monitor->timer, timo); - if (ret == 0) - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Scrubber is currently running and would be " - "rescheduled after completion"); - else { - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_PENDING); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Scrubbing rescheduled to run at %s", timestr); - } - - return 0; + int32_t ret = 0; + uint32_t timo = 0; + char timestr[GF_TIMESTR_SIZE] = { + 0, + }; + time_t now = 0; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + now = gf_time(); + timo = BR_SCRUB_ONDEMAND; + gf_time_fmt(timestr, sizeof(timestr), now + timo, gf_timefmt_FT); + + pthread_mutex_lock(&scrub_monitor->donelock); + { + scrub_monitor->done = _gf_false; + } + pthread_mutex_unlock(&scrub_monitor->donelock); + + ret = gf_tw_mod_timer_pending(priv->timer_wheel, scrub_monitor->timer, + timo); + if (ret == 0) + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Scrubber is currently running and would be " + "rescheduled after completion"); + else { + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_PENDING); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Ondemand Scrubbing scheduled to run at %s", timestr); + } + + return 0; } -#define BR_SCRUB_THREAD_SCALE_LAZY 0 -#define BR_SCRUB_THREAD_SCALE_NORMAL 0.4 +#define BR_SCRUB_THREAD_SCALE_LAZY 0 +#define BR_SCRUB_THREAD_SCALE_NORMAL 0.4 #define BR_SCRUB_THREAD_SCALE_AGGRESSIVE 1.0 #ifndef M_E @@ -1051,111 +1110,105 @@ br_fsscan_reschedule (xlator_t *this) * the scale based on the number of processor cores too. */ static unsigned int -br_scrubber_calc_scale (xlator_t *this, - br_private_t *priv, scrub_throttle_t throttle) +br_scrubber_calc_scale(xlator_t *this, br_private_t *priv, + scrub_throttle_t throttle) { - unsigned int scale = 0; + unsigned int scale = 0; - switch (throttle) { + switch (throttle) { case BR_SCRUB_THROTTLE_VOID: case BR_SCRUB_THROTTLE_STALLED: - scale = 0; - break; + scale = 0; + break; case BR_SCRUB_THROTTLE_LAZY: - scale = priv->child_count * - pow (M_E, BR_SCRUB_THREAD_SCALE_LAZY); - break; + scale = priv->child_count * pow(M_E, BR_SCRUB_THREAD_SCALE_LAZY); + break; case BR_SCRUB_THROTTLE_NORMAL: - scale = priv->child_count * - pow (M_E, BR_SCRUB_THREAD_SCALE_NORMAL); - break; + scale = priv->child_count * pow(M_E, BR_SCRUB_THREAD_SCALE_NORMAL); + break; case BR_SCRUB_THROTTLE_AGGRESSIVE: - scale = priv->child_count * - pow (M_E, BR_SCRUB_THREAD_SCALE_AGGRESSIVE); - break; + scale = priv->child_count * + pow(M_E, BR_SCRUB_THREAD_SCALE_AGGRESSIVE); + break; default: - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_UNKNOWN_THROTTLE, - "Unknown throttle %d", throttle); - } - - return scale; + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_UNKNOWN_THROTTLE, + "Unknown throttle %d", throttle); + } + return scale; } static br_child_t * -_br_scrubber_get_next_child (struct br_scrubber *fsscrub) +_br_scrubber_get_next_child(struct br_scrubber *fsscrub) { - br_child_t *child = NULL; + br_child_t *child = NULL; - child = list_first_entry (&fsscrub->scrublist, br_child_t, list); - list_rotate_left (&fsscrub->scrublist); + child = list_first_entry(&fsscrub->scrublist, br_child_t, list); + list_rotate_left(&fsscrub->scrublist); - return child; + return child; } static void -_br_scrubber_get_entry (br_child_t *child, struct br_fsscan_entry **fsentry) +_br_scrubber_get_entry(br_child_t *child, struct br_fsscan_entry **fsentry) { - struct br_scanfs *fsscan = &child->fsscan; + struct br_scanfs *fsscan = &child->fsscan; - if (list_empty (&fsscan->ready)) - return; - *fsentry = list_first_entry - (&fsscan->ready, struct br_fsscan_entry, list); - list_del_init (&(*fsentry)->list); + if (list_empty(&fsscan->ready)) + return; + *fsentry = list_first_entry(&fsscan->ready, struct br_fsscan_entry, list); + list_del_init(&(*fsentry)->list); } static void -_br_scrubber_find_scrubbable_entry (struct br_scrubber *fsscrub, - struct br_fsscan_entry **fsentry) +_br_scrubber_find_scrubbable_entry(struct br_scrubber *fsscrub, + struct br_fsscan_entry **fsentry) { - br_child_t *child = NULL; - br_child_t *firstchild = NULL; - - while (1) { - while (list_empty (&fsscrub->scrublist)) - pthread_cond_wait (&fsscrub->cond, &fsscrub->mutex); + br_child_t *child = NULL; + br_child_t *firstchild = NULL; - firstchild = NULL; - for (child = _br_scrubber_get_next_child (fsscrub); - child != firstchild; - child = _br_scrubber_get_next_child (fsscrub)) { + while (1) { + while (list_empty(&fsscrub->scrublist)) + pthread_cond_wait(&fsscrub->cond, &fsscrub->mutex); - if (!firstchild) - firstchild = child; + firstchild = NULL; + for (child = _br_scrubber_get_next_child(fsscrub); child != firstchild; + child = _br_scrubber_get_next_child(fsscrub)) { + if (!firstchild) + firstchild = child; - _br_scrubber_get_entry (child, fsentry); - if (*fsentry) - break; - } + _br_scrubber_get_entry(child, fsentry); + if (*fsentry) + break; + } - if (*fsentry) - break; + if (*fsentry) + break; - /* nothing to work on.. wait till available */ - pthread_cond_wait (&fsscrub->cond, &fsscrub->mutex); - } + /* nothing to work on.. wait till available */ + pthread_cond_wait(&fsscrub->cond, &fsscrub->mutex); + } } static void -br_scrubber_pick_entry (struct br_scrubber *fsscrub, - struct br_fsscan_entry **fsentry) +br_scrubber_pick_entry(struct br_scrubber *fsscrub, + struct br_fsscan_entry **fsentry) { - pthread_cleanup_push (_br_lock_cleaner, &fsscrub->mutex); + pthread_cleanup_push(_br_lock_cleaner, &fsscrub->mutex); - pthread_mutex_lock (&fsscrub->mutex); - { - *fsentry = NULL; - _br_scrubber_find_scrubbable_entry (fsscrub, fsentry); - } - pthread_mutex_unlock (&fsscrub->mutex); + pthread_mutex_lock(&fsscrub->mutex); + { + *fsentry = NULL; + _br_scrubber_find_scrubbable_entry(fsscrub, fsentry); + } + pthread_mutex_unlock(&fsscrub->mutex); - pthread_cleanup_pop (0); + pthread_cleanup_pop(0); } struct br_scrub_entry { - gf_boolean_t scrubbed; - struct br_fsscan_entry *fsentry; + gf_boolean_t scrubbed; + struct br_fsscan_entry *fsentry; }; /** @@ -1165,667 +1218,702 @@ struct br_scrub_entry { * in the ->pending queue or when an object is undergoing scrubbing. */ static void -br_scrubber_entry_handle (void *arg) +br_scrubber_entry_handle(void *arg) { - struct br_scanfs *fsscan = NULL; - struct br_scrub_entry *sentry = NULL; - struct br_fsscan_entry *fsentry = NULL; + struct br_scanfs *fsscan = NULL; + struct br_scrub_entry *sentry = NULL; + struct br_fsscan_entry *fsentry = NULL; - sentry = arg; + sentry = arg; - fsentry = sentry->fsentry; - fsscan = fsentry->fsscan; + fsentry = sentry->fsentry; + fsscan = fsentry->fsscan; - LOCK (&fsscan->entrylock); - { - if (sentry->scrubbed) { - _br_fsscan_dec_entry_count (fsscan); - - /* cleanup ->entry */ - fsentry->data = NULL; - fsentry->fsscan = NULL; - loc_wipe (&fsentry->parent); - gf_dirent_entry_free (fsentry->entry); - - GF_FREE (sentry->fsentry); - } else { - /* (re)queue the entry again for scrub */ - _br_fsscan_collect_entry (fsscan, sentry->fsentry); - } + LOCK(&fsscan->entrylock); + { + if (sentry->scrubbed) { + _br_fsscan_dec_entry_count(fsscan); + + /* cleanup ->entry */ + fsentry->data = NULL; + fsentry->fsscan = NULL; + loc_wipe(&fsentry->parent); + gf_dirent_entry_free(fsentry->entry); + + GF_FREE(sentry->fsentry); + } else { + /* (re)queue the entry again for scrub */ + _br_fsscan_collect_entry(fsscan, sentry->fsentry); } - UNLOCK (&fsscan->entrylock); + } + UNLOCK(&fsscan->entrylock); } static void -br_scrubber_scrub_entry (xlator_t *this, struct br_fsscan_entry *fsentry) +br_scrubber_scrub_entry(xlator_t *this, struct br_fsscan_entry *fsentry) { - struct br_scrub_entry sentry = {0, }; - - sentry.scrubbed = 0; - sentry.fsentry = fsentry; - - pthread_cleanup_push (br_scrubber_entry_handle, &sentry); - { - (void) br_scrubber_scrub_begin (this, fsentry); - sentry.scrubbed = 1; - } - pthread_cleanup_pop (1); + struct br_scrub_entry sentry = { + 0, + }; + + sentry.scrubbed = 0; + sentry.fsentry = fsentry; + + pthread_cleanup_push(br_scrubber_entry_handle, &sentry); + { + (void)br_scrubber_scrub_begin(this, fsentry); + sentry.scrubbed = 1; + } + pthread_cleanup_pop(1); } -void *br_scrubber_proc (void *arg) +void * +br_scrubber_proc(void *arg) { - xlator_t *this = NULL; - struct br_scrubber *fsscrub = NULL; - struct br_fsscan_entry *fsentry = NULL; + xlator_t *this = NULL; + struct br_scrubber *fsscrub = NULL; + struct br_fsscan_entry *fsentry = NULL; - fsscrub = arg; - THIS = this = fsscrub->this; + fsscrub = arg; + THIS = this = fsscrub->this; - while (1) { - br_scrubber_pick_entry (fsscrub, &fsentry); - br_scrubber_scrub_entry (this, fsentry); - sleep (1); - } + while (1) { + br_scrubber_pick_entry(fsscrub, &fsentry); + br_scrubber_scrub_entry(this, fsentry); + sleep(1); + } - return NULL; + return NULL; } static int32_t -br_scrubber_scale_up (xlator_t *this, - struct br_scrubber *fsscrub, - unsigned int v1, unsigned int v2) +br_scrubber_scale_up(xlator_t *this, struct br_scrubber *fsscrub, + unsigned int v1, unsigned int v2) { - int i = 0; - int32_t ret = -1; - int diff = 0; - struct br_scrubbers *scrub = NULL; - - diff = (int)(v2 - v1); - - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCALING_UP_SCRUBBER, - "Scaling up scrubbers [%d => %d]", v1, v2); - - for (i = 0; i < diff; i++) { - scrub = GF_CALLOC (diff, sizeof (*scrub), - gf_br_mt_br_scrubber_t); - if (!scrub) - break; - - INIT_LIST_HEAD (&scrub->list); - ret = gf_thread_create (&scrub->scrubthread, - NULL, br_scrubber_proc, fsscrub); - if (ret) - break; - - fsscrub->nr_scrubbers++; - list_add_tail (&scrub->list, &fsscrub->scrubbers); - } + int i = 0; + int32_t ret = -1; + int diff = 0; + struct br_scrubbers *scrub = NULL; - if ((i != diff) && !scrub) - goto error_return; + diff = (int)(v2 - v1); - if (i != diff) /* degraded scaling.. */ - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_SCALE_UP_FAILED, - "Could not fully scale up to %d scrubber(s). Spawned " - "%d/%d [total scrubber(s): %d]", v2, i, diff, (v1 + i)); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCALING_UP_SCRUBBER, + "Scaling up scrubbers [%d => %d]", v1, v2); - return 0; + for (i = 0; i < diff; i++) { + scrub = GF_CALLOC(diff, sizeof(*scrub), gf_br_mt_br_scrubber_t); + if (!scrub) + break; - error_return: - return -1; + INIT_LIST_HEAD(&scrub->list); + ret = gf_thread_create(&scrub->scrubthread, NULL, br_scrubber_proc, + fsscrub, "brsproc"); + if (ret) + break; + + fsscrub->nr_scrubbers++; + list_add_tail(&scrub->list, &fsscrub->scrubbers); + } + + if ((i != diff) && !scrub) + goto error_return; + + if (i != diff) /* degraded scaling.. */ + gf_msg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SCALE_UP_FAILED, + "Could not fully scale up to %d scrubber(s). Spawned " + "%d/%d [total scrubber(s): %d]", + v2, i, diff, (v1 + i)); + + return 0; + +error_return: + return -1; } static int32_t -br_scrubber_scale_down (xlator_t *this, - struct br_scrubber *fsscrub, - unsigned int v1, unsigned int v2) +br_scrubber_scale_down(xlator_t *this, struct br_scrubber *fsscrub, + unsigned int v1, unsigned int v2) { - int i = 0; - int diff = 0; - int32_t ret = -1; - struct br_scrubbers *scrub = NULL; + int i = 0; + int diff = 0; + int32_t ret = -1; + struct br_scrubbers *scrub = NULL; - diff = (int)(v1 - v2); + diff = (int)(v1 - v2); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCALE_DOWN_SCRUBBER, - "Scaling down scrubbers [%d => %d]", v1, v2); + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCALE_DOWN_SCRUBBER, + "Scaling down scrubbers [%d => %d]", v1, v2); - for (i = 0 ; i < diff; i++) { - scrub = list_first_entry - (&fsscrub->scrubbers, struct br_scrubbers, list); + for (i = 0; i < diff; i++) { + scrub = list_first_entry(&fsscrub->scrubbers, struct br_scrubbers, + list); - list_del_init (&scrub->list); - ret = gf_thread_cleanup_xint (scrub->scrubthread); - if (ret) - break; - GF_FREE (scrub); - - fsscrub->nr_scrubbers--; - } - - if (ret) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRB_MSG_SCALE_DOWN_FAILED, "Could not fully scale down " - "to %d scrubber(s). Terminated %d/%d [total " - "scrubber(s): %d]", v1, i, diff, (v2 - i)); - ret = 0; - } + list_del_init(&scrub->list); + ret = gf_thread_cleanup_xint(scrub->scrubthread); + if (ret) + break; + GF_FREE(scrub); + + fsscrub->nr_scrubbers--; + } + + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SCALE_DOWN_FAILED, + "Could not fully scale down " + "to %d scrubber(s). Terminated %d/%d [total " + "scrubber(s): %d]", + v1, i, diff, (v2 - i)); + ret = 0; + } - return ret; + return ret; } static int32_t -br_scrubber_configure (xlator_t *this, br_private_t *priv, - struct br_scrubber *fsscrub, scrub_throttle_t nthrottle) +br_scrubber_configure(xlator_t *this, br_private_t *priv, + struct br_scrubber *fsscrub, scrub_throttle_t nthrottle) { - int32_t ret = 0; - unsigned int v1 = 0; - unsigned int v2 = 0; + int32_t ret = 0; + unsigned int v1 = 0; + unsigned int v2 = 0; - v1 = fsscrub->nr_scrubbers; - v2 = br_scrubber_calc_scale (this, priv, nthrottle); + v1 = fsscrub->nr_scrubbers; + v2 = br_scrubber_calc_scale(this, priv, nthrottle); - if (v1 == v2) - return 0; + if (v1 == v2) + return 0; - if (v1 > v2) - ret = br_scrubber_scale_down (this, fsscrub, v1, v2); - else - ret = br_scrubber_scale_up (this, fsscrub, v1, v2); + if (v1 > v2) + ret = br_scrubber_scale_down(this, fsscrub, v1, v2); + else + ret = br_scrubber_scale_up(this, fsscrub, v1, v2); - return ret; + return ret; } static int32_t -br_scrubber_fetch_option (xlator_t *this, - char *opt, dict_t *options, char **value) +br_scrubber_fetch_option(xlator_t *this, char *opt, dict_t *options, + char **value) { - if (options) - GF_OPTION_RECONF (opt, *value, options, str, error_return); - else - GF_OPTION_INIT (opt, *value, str, error_return); + if (options) + GF_OPTION_RECONF(opt, *value, options, str, error_return); + else + GF_OPTION_INIT(opt, *value, str, error_return); - return 0; + return 0; - error_return: - return -1; +error_return: + return -1; } /* internal "throttle" override */ -#define BR_SCRUB_STALLED "STALLED" +#define BR_SCRUB_STALLED "STALLED" /* TODO: token buket spec */ static int32_t -br_scrubber_handle_throttle (xlator_t *this, br_private_t *priv, - dict_t *options, gf_boolean_t scrubstall) +br_scrubber_handle_throttle(xlator_t *this, br_private_t *priv, dict_t *options, + gf_boolean_t scrubstall) { - int32_t ret = 0; - char *tmp = NULL; - struct br_scrubber *fsscrub = NULL; - scrub_throttle_t nthrottle = BR_SCRUB_THROTTLE_VOID; - - fsscrub = &priv->fsscrub; - fsscrub->throttle_reconf = _gf_false; - - ret = br_scrubber_fetch_option (this, "scrub-throttle", options, &tmp); - if (ret) - goto error_return; - - if (scrubstall) - tmp = BR_SCRUB_STALLED; - - if (strcasecmp (tmp, "lazy") == 0) - nthrottle = BR_SCRUB_THROTTLE_LAZY; - else if (strcasecmp (tmp, "normal") == 0) - nthrottle = BR_SCRUB_THROTTLE_NORMAL; - else if (strcasecmp (tmp, "aggressive") == 0) - nthrottle = BR_SCRUB_THROTTLE_AGGRESSIVE; - else if (strcasecmp (tmp, BR_SCRUB_STALLED) == 0) - nthrottle = BR_SCRUB_THROTTLE_STALLED; - else - goto error_return; - - /* on failure old throttling value is preserved */ - ret = br_scrubber_configure (this, priv, fsscrub, nthrottle); - if (ret) - goto error_return; - - if (fsscrub->throttle != nthrottle) - fsscrub->throttle_reconf = _gf_true; - - fsscrub->throttle = nthrottle; - return 0; - - error_return: - return -1; + int32_t ret = 0; + char *tmp = NULL; + struct br_scrubber *fsscrub = NULL; + scrub_throttle_t nthrottle = BR_SCRUB_THROTTLE_VOID; + + fsscrub = &priv->fsscrub; + fsscrub->throttle_reconf = _gf_false; + + ret = br_scrubber_fetch_option(this, "scrub-throttle", options, &tmp); + if (ret) + goto error_return; + + if (scrubstall) + tmp = BR_SCRUB_STALLED; + + if (strcasecmp(tmp, "lazy") == 0) + nthrottle = BR_SCRUB_THROTTLE_LAZY; + else if (strcasecmp(tmp, "normal") == 0) + nthrottle = BR_SCRUB_THROTTLE_NORMAL; + else if (strcasecmp(tmp, "aggressive") == 0) + nthrottle = BR_SCRUB_THROTTLE_AGGRESSIVE; + else if (strcasecmp(tmp, BR_SCRUB_STALLED) == 0) + nthrottle = BR_SCRUB_THROTTLE_STALLED; + else + goto error_return; + + /* on failure old throttling value is preserved */ + ret = br_scrubber_configure(this, priv, fsscrub, nthrottle); + if (ret) + goto error_return; + + if (fsscrub->throttle != nthrottle) + fsscrub->throttle_reconf = _gf_true; + + fsscrub->throttle = nthrottle; + return 0; + +error_return: + return -1; } static int32_t -br_scrubber_handle_stall (xlator_t *this, br_private_t *priv, - dict_t *options, gf_boolean_t *scrubstall) +br_scrubber_handle_stall(xlator_t *this, br_private_t *priv, dict_t *options, + gf_boolean_t *scrubstall) { - int32_t ret = 0; - char *tmp = NULL; + int32_t ret = 0; + char *tmp = NULL; - ret = br_scrubber_fetch_option (this, "scrub-state", options, &tmp); - if (ret) - goto error_return; + ret = br_scrubber_fetch_option(this, "scrub-state", options, &tmp); + if (ret) + goto error_return; - if (strcasecmp (tmp, "pause") == 0) /* anything else is active */ - *scrubstall = _gf_true; + if (strcasecmp(tmp, "pause") == 0) /* anything else is active */ + *scrubstall = _gf_true; - return 0; + return 0; - error_return: - return -1; +error_return: + return -1; } static int32_t -br_scrubber_handle_freq (xlator_t *this, br_private_t *priv, - dict_t *options, gf_boolean_t scrubstall) +br_scrubber_handle_freq(xlator_t *this, br_private_t *priv, dict_t *options, + gf_boolean_t scrubstall) { - int32_t ret = -1; - char *tmp = NULL; - scrub_freq_t frequency = BR_FSSCRUB_FREQ_HOURLY; - struct br_scrubber *fsscrub = NULL; - - fsscrub = &priv->fsscrub; - fsscrub->frequency_reconf = _gf_true; - - ret = br_scrubber_fetch_option (this, "scrub-freq", options, &tmp); - if (ret) - goto error_return; - - if (scrubstall) - tmp = BR_SCRUB_STALLED; - - if (strcasecmp (tmp, "hourly") == 0) { - frequency = BR_FSSCRUB_FREQ_HOURLY; - } else if (strcasecmp (tmp, "daily") == 0) { - frequency = BR_FSSCRUB_FREQ_DAILY; - } else if (strcasecmp (tmp, "weekly") == 0) { - frequency = BR_FSSCRUB_FREQ_WEEKLY; - } else if (strcasecmp (tmp, "biweekly") == 0) { - frequency = BR_FSSCRUB_FREQ_BIWEEKLY; - } else if (strcasecmp (tmp, "monthly") == 0) { - frequency = BR_FSSCRUB_FREQ_MONTHLY; - } else if (strcasecmp (tmp, "minute") == 0) { - frequency = BR_FSSCRUB_FREQ_MINUTE; - } else if (strcasecmp (tmp, BR_SCRUB_STALLED) == 0) { - frequency = BR_FSSCRUB_FREQ_STALLED; - } else - goto error_return; - - if (fsscrub->frequency == frequency) - fsscrub->frequency_reconf = _gf_false; - else - fsscrub->frequency = frequency; - - return 0; - - error_return: - return -1; + int32_t ret = -1; + char *tmp = NULL; + scrub_freq_t frequency = BR_FSSCRUB_FREQ_HOURLY; + struct br_scrubber *fsscrub = NULL; + + fsscrub = &priv->fsscrub; + fsscrub->frequency_reconf = _gf_true; + + ret = br_scrubber_fetch_option(this, "scrub-freq", options, &tmp); + if (ret) + goto error_return; + + if (scrubstall) + tmp = BR_SCRUB_STALLED; + + if (strcasecmp(tmp, "hourly") == 0) { + frequency = BR_FSSCRUB_FREQ_HOURLY; + } else if (strcasecmp(tmp, "daily") == 0) { + frequency = BR_FSSCRUB_FREQ_DAILY; + } else if (strcasecmp(tmp, "weekly") == 0) { + frequency = BR_FSSCRUB_FREQ_WEEKLY; + } else if (strcasecmp(tmp, "biweekly") == 0) { + frequency = BR_FSSCRUB_FREQ_BIWEEKLY; + } else if (strcasecmp(tmp, "monthly") == 0) { + frequency = BR_FSSCRUB_FREQ_MONTHLY; + } else if (strcasecmp(tmp, "minute") == 0) { + frequency = BR_FSSCRUB_FREQ_MINUTE; + } else if (strcasecmp(tmp, BR_SCRUB_STALLED) == 0) { + frequency = BR_FSSCRUB_FREQ_STALLED; + } else + goto error_return; + + if (fsscrub->frequency == frequency) + fsscrub->frequency_reconf = _gf_false; + else + fsscrub->frequency = frequency; + + return 0; + +error_return: + return -1; } -static void br_scrubber_log_option (xlator_t *this, - br_private_t *priv, gf_boolean_t scrubstall) +static void +br_scrubber_log_option(xlator_t *this, br_private_t *priv, + gf_boolean_t scrubstall) { - struct br_scrubber *fsscrub = &priv->fsscrub; - char *scrub_throttle_str[] = { - [BR_SCRUB_THROTTLE_LAZY] = "lazy", - [BR_SCRUB_THROTTLE_NORMAL] = "normal", - [BR_SCRUB_THROTTLE_AGGRESSIVE] = "aggressive", - }; - - char *scrub_freq_str[] = { - [BR_FSSCRUB_FREQ_HOURLY] = "hourly", - [BR_FSSCRUB_FREQ_DAILY] = "daily", - [BR_FSSCRUB_FREQ_WEEKLY] = "weekly", - [BR_FSSCRUB_FREQ_BIWEEKLY] = "biweekly", - [BR_FSSCRUB_FREQ_MONTHLY] = "monthly (30 days)", - [BR_FSSCRUB_FREQ_MINUTE] = "every minute", - }; - - if (scrubstall) - return; /* logged as pause */ - - if (fsscrub->frequency_reconf || fsscrub->throttle_reconf) { - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_TUNABLE, - "SCRUB TUNABLES:: [Frequency: %s, Throttle: %s]", - scrub_freq_str[fsscrub->frequency], - scrub_throttle_str[fsscrub->throttle]); - } + struct br_scrubber *fsscrub = &priv->fsscrub; + char *scrub_throttle_str[] = { + [BR_SCRUB_THROTTLE_LAZY] = "lazy", + [BR_SCRUB_THROTTLE_NORMAL] = "normal", + [BR_SCRUB_THROTTLE_AGGRESSIVE] = "aggressive", + [BR_SCRUB_THROTTLE_STALLED] = "stalled", + }; + + char *scrub_freq_str[] = { + [0] = "", + [BR_FSSCRUB_FREQ_HOURLY] = "hourly", + [BR_FSSCRUB_FREQ_DAILY] = "daily", + [BR_FSSCRUB_FREQ_WEEKLY] = "weekly", + [BR_FSSCRUB_FREQ_BIWEEKLY] = "biweekly", + [BR_FSSCRUB_FREQ_MONTHLY] = "monthly (30 days)", + [BR_FSSCRUB_FREQ_MINUTE] = "every minute", + }; + + if (scrubstall) + return; /* logged as pause */ + + if (fsscrub->frequency_reconf || fsscrub->throttle_reconf) { + if (fsscrub->throttle == BR_SCRUB_THROTTLE_VOID) + return; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_TUNABLE, + "SCRUB TUNABLES:: [Frequency: %s, Throttle: %s]", + scrub_freq_str[fsscrub->frequency], + scrub_throttle_str[fsscrub->throttle]); + } } int32_t -br_scrubber_handle_options (xlator_t *this, br_private_t *priv, dict_t *options) +br_scrubber_handle_options(xlator_t *this, br_private_t *priv, dict_t *options) { - int32_t ret = 0; - gf_boolean_t scrubstall = _gf_false; /* not as dangerous as it sounds */ + int32_t ret = 0; + gf_boolean_t scrubstall = _gf_false; /* not as dangerous as it sounds */ - ret = br_scrubber_handle_stall (this, priv, options, &scrubstall); - if (ret) - goto error_return; + ret = br_scrubber_handle_stall(this, priv, options, &scrubstall); + if (ret) + goto error_return; - ret = br_scrubber_handle_throttle (this, priv, options, scrubstall); - if (ret) - goto error_return; + ret = br_scrubber_handle_throttle(this, priv, options, scrubstall); + if (ret) + goto error_return; - ret = br_scrubber_handle_freq (this, priv, options, scrubstall); - if (ret) - goto error_return; + ret = br_scrubber_handle_freq(this, priv, options, scrubstall); + if (ret) + goto error_return; - br_scrubber_log_option (this, priv, scrubstall); + br_scrubber_log_option(this, priv, scrubstall); - return 0; + return 0; - error_return: - return -1; +error_return: + return -1; } inode_t * -br_lookup_bad_obj_dir (xlator_t *this, br_child_t *child, uuid_t gfid) +br_lookup_bad_obj_dir(xlator_t *this, br_child_t *child, uuid_t gfid) { - struct iatt statbuf = {0, }; - inode_table_t *table = NULL; - int32_t ret = -1; - loc_t loc = {0, }; - inode_t *linked_inode = NULL; - int32_t op_errno = 0; - - GF_VALIDATE_OR_GOTO ("bit-rot-scrubber", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - - table = child->table; - - loc.inode = inode_new (table); - if (!loc.inode) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, - BRB_MSG_NO_MEMORY, "failed to allocate a new inode for" - "bad object directory"); - goto out; - } + struct iatt statbuf = { + 0, + }; + inode_table_t *table = NULL; + int32_t ret = -1; + loc_t loc = { + 0, + }; + inode_t *linked_inode = NULL; + int32_t op_errno = 0; + + GF_VALIDATE_OR_GOTO("bit-rot-scrubber", this, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); + + table = child->table; + + loc.inode = inode_new(table); + if (!loc.inode) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, + "failed to allocate a new inode for" + "bad object directory"); + goto out; + } + + gf_uuid_copy(loc.gfid, gfid); + + ret = syncop_lookup(child->xl, &loc, &statbuf, NULL, NULL, NULL); + if (ret < 0) { + op_errno = -ret; + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_LOOKUP_FAILED, + "failed to lookup the bad " + "objects directory (gfid: %s (%s))", + uuid_utoa(gfid), strerror(op_errno)); + goto out; + } + + linked_inode = inode_link(loc.inode, NULL, NULL, &statbuf); + if (linked_inode) + inode_lookup(linked_inode); - gf_uuid_copy (loc.gfid, gfid); +out: + loc_wipe(&loc); + return linked_inode; +} - ret = syncop_lookup (child->xl, &loc, &statbuf, NULL, NULL, NULL); - if (ret < 0) { - op_errno = -ret; - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_LOOKUP_FAILED, "failed to lookup the bad " - "objects directory (gfid: %s (%s))", uuid_utoa (gfid), - strerror (op_errno)); - goto out; +int32_t +br_read_bad_object_dir(xlator_t *this, br_child_t *child, fd_t *fd, + dict_t *dict) +{ + gf_dirent_t entries; + gf_dirent_t *entry = NULL; + int32_t ret = -1; + off_t offset = 0; + int32_t count = 0; + char key[32] = { + 0, + }; + dict_t *out_dict = NULL; + + INIT_LIST_HEAD(&entries.list); + + while ((ret = syncop_readdir(child->xl, fd, 131072, offset, &entries, NULL, + &out_dict))) { + if (ret < 0) + goto out; + + list_for_each_entry(entry, &entries.list, list) + { + offset = entry->d_off; + + snprintf(key, sizeof(key), "quarantine-%d", count); + + /* + * ignore the dict_set errors for now. The intention is + * to get as many bad objects as possible instead of + * erroring out at the first failure. + */ + ret = dict_set_dynstr_with_alloc(dict, key, entry->d_name); + if (!ret) + count++; + + if (out_dict) { + dict_copy(out_dict, dict); + dict_unref(out_dict); + out_dict = NULL; + } } - linked_inode = inode_link (loc.inode, NULL, NULL, &statbuf); - if (linked_inode) - inode_lookup (linked_inode); + gf_dirent_free(&entries); + } + + ret = count; + ret = dict_set_int32_sizen(dict, "count", count); out: - loc_wipe (&loc); - return linked_inode; + return ret; } int32_t -br_read_bad_object_dir (xlator_t *this, br_child_t *child, fd_t *fd, - dict_t *dict) +br_get_bad_objects_from_child(xlator_t *this, dict_t *dict, br_child_t *child) { - gf_dirent_t entries; - gf_dirent_t *entry = NULL; - int32_t ret = -1; - off_t offset = 0; - int32_t count = 0; - char key[PATH_MAX] = {0, }; - - INIT_LIST_HEAD (&entries.list); - - while ((ret = syncop_readdir (child->xl, fd, 131072, offset, &entries, - NULL, NULL))) { - if (ret < 0) - goto out; - if (ret == 0) - break; - list_for_each_entry (entry, &entries.list, list) { - offset = entry->d_off; - - snprintf (key, sizeof (key), "quarantine-%d", count); - - /* - * ignore the dict_set errors for now. The intention is - * to get as many bad objects as possible instead of - * erroring out at the first failure. - */ - ret = dict_set_dynstr_with_alloc (dict, key, - entry->d_name); - if (!ret) - count++; - } - - gf_dirent_free (&entries); - } - - ret = count; - ret = dict_set_int32 (dict, "count", count); + inode_t *inode = NULL; + inode_table_t *table = NULL; + fd_t *fd = NULL; + int32_t ret = -1; + loc_t loc = { + 0, + }; + int32_t op_errno = 0; + + GF_VALIDATE_OR_GOTO("bit-rot-scrubber", this, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); + GF_VALIDATE_OR_GOTO(this->name, dict, out); + + table = child->table; + + inode = inode_find(table, BR_BAD_OBJ_CONTAINER); + if (!inode) { + inode = br_lookup_bad_obj_dir(this, child, BR_BAD_OBJ_CONTAINER); + if (!inode) + goto out; + } + + fd = fd_create(inode, 0); + if (!fd) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_FD_CREATE_FAILED, + "fd creation for the bad " + "objects directory failed (gfid: %s)", + uuid_utoa(BR_BAD_OBJ_CONTAINER)); + goto out; + } + + loc.inode = inode; + gf_uuid_copy(loc.gfid, inode->gfid); + + ret = syncop_opendir(child->xl, &loc, fd, NULL, NULL); + if (ret < 0) { + op_errno = -ret; + fd_unref(fd); + fd = NULL; + gf_msg(this->name, GF_LOG_ERROR, op_errno, BRB_MSG_FD_CREATE_FAILED, + "failed to open the bad " + "objects directory %s", + uuid_utoa(BR_BAD_OBJ_CONTAINER)); + goto out; + } + + fd_bind(fd); + + ret = br_read_bad_object_dir(this, child, fd, dict); + if (ret < 0) { + gf_msg(this->name, GF_LOG_ERROR, 0, BRB_MSG_BAD_OBJ_READDIR_FAIL, + "readdir of the bad " + "objects directory (%s) failed ", + uuid_utoa(BR_BAD_OBJ_CONTAINER)); + goto out; + } + + ret = 0; out: - return ret; + loc_wipe(&loc); + if (fd) + fd_unref(fd); + return ret; } int32_t -br_get_bad_objects_from_child (xlator_t *this, dict_t *dict, br_child_t *child) +br_collect_bad_objects_of_child(xlator_t *this, br_child_t *child, dict_t *dict, + dict_t *child_dict, int32_t total_count) { - inode_t *inode = NULL; - inode_table_t *table = NULL; - fd_t *fd = NULL; - int32_t ret = -1; - loc_t loc = {0, }; - int32_t op_errno = 0; - - GF_VALIDATE_OR_GOTO ("bit-rot-scrubber", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - GF_VALIDATE_OR_GOTO (this->name, dict, out); - - table = child->table; - - inode = inode_find (table, BR_BAD_OBJ_CONTAINER); - if (!inode) { - inode = br_lookup_bad_obj_dir (this, child, - BR_BAD_OBJ_CONTAINER); - if (!inode) - goto out; - } - - fd = fd_create (inode, 0); - if (!fd) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, - BRB_MSG_FD_CREATE_FAILED, "fd creation for the bad " - "objects directory failed (gfid: %s)", - uuid_utoa (BR_BAD_OBJ_CONTAINER)); - goto out; - } - - loc.inode = inode; - gf_uuid_copy (loc.gfid, inode->gfid); + int32_t ret = -1; + int32_t count = 0; + char key[32] = { + 0, + }; + char main_key[32] = { + 0, + }; + int32_t j = 0; + int32_t tmp_count = 0; + char *entry = NULL; + char tmp[PATH_MAX] = { + 0, + }; + char *path = NULL; + int32_t len = 0; + + ret = dict_get_int32_sizen(child_dict, "count", &count); + if (ret) + goto out; + + tmp_count = total_count; + + for (j = 0; j < count; j++) { + len = snprintf(key, sizeof(key), "quarantine-%d", j); + ret = dict_get_strn(child_dict, key, len, &entry); + if (ret) + continue; - ret = syncop_opendir (child->xl, &loc, fd, NULL, NULL); - if (ret < 0) { - op_errno = -ret; - fd_unref (fd); - fd = NULL; - gf_msg (this->name, GF_LOG_ERROR, op_errno, - BRB_MSG_FD_CREATE_FAILED, "failed to open the bad " - "objects directory %s", - uuid_utoa (BR_BAD_OBJ_CONTAINER)); - goto out; + ret = dict_get_str(child_dict, entry, &path); + len = snprintf(tmp, PATH_MAX, "%s ==> BRICK: %s\n path: %s", entry, + child->brick_path, path); + if ((len < 0) || (len >= PATH_MAX)) { + continue; } + snprintf(main_key, sizeof(main_key), "quarantine-%d", tmp_count); - fd_bind (fd); - - ret = br_read_bad_object_dir (this, child, fd, dict); - if (ret < 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_BAD_OBJ_READDIR_FAIL, "readdir of the bad " - "objects directory (%s) failed ", - uuid_utoa (BR_BAD_OBJ_CONTAINER)); - goto out; - } + ret = dict_set_dynstr_with_alloc(dict, main_key, tmp); + if (!ret) + tmp_count++; + path = NULL; + } - ret = 0; + ret = tmp_count; out: - loc_wipe (&loc); - if (fd) - fd_unref (fd); - return ret; + return ret; } int32_t -br_collect_bad_objects_of_child (xlator_t *this, br_child_t *child, - dict_t *dict, dict_t *child_dict, - int32_t total_count) +br_collect_bad_objects_from_children(xlator_t *this, dict_t *dict) { - - int32_t ret = -1; - int32_t count = 0; - char key[PATH_MAX] = {0, }; - char main_key[PATH_MAX] = {0, }; - int32_t j = 0; - int32_t tmp_count = 0; - char *entry = NULL; - - ret = dict_get_int32 (child_dict, "count", &count); - if (ret) - goto out; - - tmp_count = total_count; - - for (j = 0; j < count; j++) { - snprintf (key, PATH_MAX, "quarantine-%d", j); - ret = dict_get_str (child_dict, key, &entry); - if (ret) - continue; - snprintf (main_key, PATH_MAX, "quarantine-%d", - tmp_count); - ret = dict_set_dynstr_with_alloc (dict, main_key, entry); - if (!ret) - tmp_count++; + int32_t ret = -1; + dict_t *child_dict = NULL; + int32_t i = 0; + int32_t total_count = 0; + br_child_t *child = NULL; + br_private_t *priv = NULL; + dict_t *tmp_dict = NULL; + + priv = this->private; + tmp_dict = dict; + + for (i = 0; i < priv->child_count; i++) { + child = &priv->children[i]; + GF_ASSERT(child); + if (!_br_is_child_connected(child)) + continue; + + child_dict = dict_new(); + if (!child_dict) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, + "failed to allocate dict"); + continue; + } + ret = br_get_bad_objects_from_child(this, child_dict, child); + /* + * Continue asking the remaining children for the list of + * bad objects even though getting the list from one of them + * fails. + */ + if (ret) { + dict_unref(child_dict); + continue; } - ret = tmp_count; - -out: - return ret; -} - -int32_t -br_collect_bad_objects_from_children (xlator_t *this, dict_t *dict) -{ - int32_t ret = -1; - dict_t *child_dict = NULL; - int32_t i = 0; - int32_t total_count = 0; - br_child_t *child = NULL; - br_private_t *priv = NULL; - dict_t *tmp_dict = NULL; - - priv = this->private; - tmp_dict = dict; - - for (i = 0; i < priv->child_count; i++) { - child = &priv->children[i]; - GF_ASSERT (child); - if (!_br_is_child_connected (child)) - continue; - - child_dict = dict_new (); - if (!child_dict) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, - BRB_MSG_NO_MEMORY, "failed to allocate dict"); - continue; - } - ret = br_get_bad_objects_from_child (this, child_dict, child); - /* - * Continue asking the remaining children for the list of - * bad objects even though getting the list from one of them - * fails. - */ - if (ret) { - dict_unref (child_dict); - continue; - } - - ret = br_collect_bad_objects_of_child (this, child, tmp_dict, - child_dict, total_count); - if (ret < 0) { - dict_unref (child_dict); - continue; - } - - total_count = ret; - dict_unref (child_dict); - child_dict = NULL; + ret = br_collect_bad_objects_of_child(this, child, tmp_dict, child_dict, + total_count); + if (ret < 0) { + dict_unref(child_dict); + continue; } - ret = dict_set_int32 (tmp_dict, "total-count", total_count); + total_count = ret; + dict_unref(child_dict); + child_dict = NULL; + } + + ret = dict_set_int32(tmp_dict, "total-count", total_count); - return ret; + return ret; } int32_t -br_get_bad_objects_list (xlator_t *this, dict_t **dict) +br_get_bad_objects_list(xlator_t *this, dict_t **dict) { - int32_t ret = -1; - dict_t *tmp_dict = NULL; + int32_t ret = -1; + dict_t *tmp_dict = NULL; - GF_VALIDATE_OR_GOTO ("bir-rot-scrubber", this, out); - GF_VALIDATE_OR_GOTO (this->name, dict, out); + GF_VALIDATE_OR_GOTO("bir-rot-scrubber", this, out); + GF_VALIDATE_OR_GOTO(this->name, dict, out); - tmp_dict = *dict; + tmp_dict = *dict; + if (!tmp_dict) { + tmp_dict = dict_new(); if (!tmp_dict) { - tmp_dict = dict_new (); - if (!tmp_dict) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, - BRB_MSG_NO_MEMORY, "failed to allocate dict"); - goto out; - } - *dict = tmp_dict; + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, + "failed to allocate dict"); + goto out; } + *dict = tmp_dict; + } - ret = br_collect_bad_objects_from_children (this, tmp_dict); + ret = br_collect_bad_objects_from_children(this, tmp_dict); out: - return ret; + return ret; } static int -wait_for_scrub_to_finish (xlator_t *this) +wait_for_scrub_to_finish(xlator_t *this) { - int ret = -1; - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - scrub_monitor = &priv->scrub_monitor; - - GF_VALIDATE_OR_GOTO ("bit-rot", scrub_monitor, out); - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, - "Waiting for all children to start and finish scrub"); - - pthread_mutex_lock (&scrub_monitor->donelock); - { - while (!scrub_monitor->done) - pthread_cond_wait (&scrub_monitor->donecond, - &scrub_monitor->donelock); - } - pthread_mutex_unlock (&scrub_monitor->donelock); - ret = 0; + int ret = -1; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + scrub_monitor = &priv->scrub_monitor; + + GF_VALIDATE_OR_GOTO("bit-rot", scrub_monitor, out); + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_INFO, + "Waiting for all children to start and finish scrub"); + + pthread_mutex_lock(&scrub_monitor->donelock); + { + while (!scrub_monitor->done) + pthread_cond_wait(&scrub_monitor->donecond, + &scrub_monitor->donelock); + } + pthread_mutex_unlock(&scrub_monitor->donelock); + ret = 0; out: - return ret; + return ret; } /** @@ -1833,152 +1921,150 @@ out: * thread that takes care of state machine. */ void * -br_monitor_thread (void *arg) +br_monitor_thread(void *arg) { - int32_t ret = 0; - xlator_t *this = NULL; - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - this = arg; - priv = this->private; - - /* - * Since, this is the topmost xlator, THIS has to be set by bit-rot - * xlator itself (STACK_WIND wont help in this case). Also it has - * to be done for each thread that gets spawned. Otherwise, a new - * thread will get global_xlator's pointer when it does "THIS". - */ - THIS = this; - - scrub_monitor = &priv->scrub_monitor; - - pthread_mutex_lock (&scrub_monitor->mutex); - { - while (!scrub_monitor->inited) - pthread_cond_wait (&scrub_monitor->cond, - &scrub_monitor->mutex); - } - pthread_mutex_unlock (&scrub_monitor->mutex); - - /* this needs to be serialized with reconfigure() */ - pthread_mutex_lock (&priv->lock); - { - ret = br_scrub_state_machine (this); - } - pthread_mutex_unlock (&priv->lock); + int32_t ret = 0; + xlator_t *this = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + this = arg; + priv = this->private; + + /* + * Since, this is the topmost xlator, THIS has to be set by bit-rot + * xlator itself (STACK_WIND won't help in this case). Also it has + * to be done for each thread that gets spawned. Otherwise, a new + * thread will get global_xlator's pointer when it does "THIS". + */ + THIS = this; + + scrub_monitor = &priv->scrub_monitor; + + pthread_mutex_lock(&scrub_monitor->mutex); + { + while (!scrub_monitor->inited) + pthread_cond_wait(&scrub_monitor->cond, &scrub_monitor->mutex); + } + pthread_mutex_unlock(&scrub_monitor->mutex); + + /* this needs to be serialized with reconfigure() */ + pthread_mutex_lock(&priv->lock); + { + ret = br_scrub_state_machine(this, _gf_false); + } + pthread_mutex_unlock(&priv->lock); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, -ret, BRB_MSG_SSM_FAILED, + "Scrub state machine failed"); + goto out; + } + + while (1) { + /* Wait for all children to finish scrubbing */ + ret = wait_for_scrub_to_finish(this); if (ret) { - gf_msg (this->name, GF_LOG_ERROR, -ret, - BRB_MSG_SSM_FAILED, - "Scrub state machine failed"); - goto out; + gf_msg(this->name, GF_LOG_ERROR, -ret, BRB_MSG_SCRUB_WAIT_FAILED, + "Scrub wait failed"); + goto out; } - while (1) { - /* Wait for all children to finish scrubbing */ - ret = wait_for_scrub_to_finish (this); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, -ret, - BRB_MSG_SCRUB_WAIT_FAILED, - "Scrub wait failed"); - goto out; - } - - /* scrub exit criteria: Move the state to PENDING */ - br_scrubber_exit_control (this); - } + /* scrub exit criteria: Move the state to PENDING */ + br_scrubber_exit_control(this); + } out: - return NULL; + return NULL; } static void -br_set_scrub_state (struct br_monitor *scrub_monitor, br_scrub_state_t state) +br_set_scrub_state(struct br_monitor *scrub_monitor, br_scrub_state_t state) { - LOCK (&scrub_monitor->lock); - { - _br_monitor_set_scrub_state (scrub_monitor, state); - } - UNLOCK (&scrub_monitor->lock); + LOCK(&scrub_monitor->lock); + { + _br_monitor_set_scrub_state(scrub_monitor, state); + } + UNLOCK(&scrub_monitor->lock); } int32_t -br_scrubber_monitor_init (xlator_t *this, br_private_t *priv) +br_scrubber_monitor_init(xlator_t *this, br_private_t *priv) { - struct br_monitor *scrub_monitor = NULL; - int ret = 0; + struct br_monitor *scrub_monitor = NULL; + int ret = 0; - scrub_monitor = &priv->scrub_monitor; + scrub_monitor = &priv->scrub_monitor; - LOCK_INIT (&scrub_monitor->lock); - scrub_monitor->this = this; + LOCK_INIT(&scrub_monitor->lock); + scrub_monitor->this = this; - scrub_monitor->inited = _gf_false; - pthread_mutex_init (&scrub_monitor->mutex, NULL); - pthread_cond_init (&scrub_monitor->cond, NULL); + scrub_monitor->inited = _gf_false; + pthread_mutex_init(&scrub_monitor->mutex, NULL); + pthread_cond_init(&scrub_monitor->cond, NULL); - scrub_monitor->kick = _gf_false; - scrub_monitor->active_child_count = 0; - pthread_mutex_init (&scrub_monitor->wakelock, NULL); - pthread_cond_init (&scrub_monitor->wakecond, NULL); + scrub_monitor->kick = _gf_false; + scrub_monitor->active_child_count = 0; + pthread_mutex_init(&scrub_monitor->wakelock, NULL); + pthread_cond_init(&scrub_monitor->wakecond, NULL); - scrub_monitor->done = _gf_false; - pthread_mutex_init (&scrub_monitor->donelock, NULL); - pthread_cond_init (&scrub_monitor->donecond, NULL); - - /* Set the state to INACTIVE */ - br_set_scrub_state (&priv->scrub_monitor, BR_SCRUB_STATE_INACTIVE); - - /* Start the monitor thread */ - ret = gf_thread_create (&scrub_monitor->thread, NULL, br_monitor_thread, this); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, -ret, - BRB_MSG_SPAWN_FAILED, "monitor thread creation failed"); - ret = -1; - goto err; - } + scrub_monitor->done = _gf_false; + pthread_mutex_init(&scrub_monitor->donelock, NULL); + pthread_cond_init(&scrub_monitor->donecond, NULL); - return 0; + /* Set the state to INACTIVE */ + br_set_scrub_state(&priv->scrub_monitor, BR_SCRUB_STATE_INACTIVE); + + /* Start the monitor thread */ + ret = gf_thread_create(&scrub_monitor->thread, NULL, br_monitor_thread, + this, "brmon"); + if (ret != 0) { + gf_msg(this->name, GF_LOG_ERROR, -ret, BRB_MSG_SPAWN_FAILED, + "monitor thread creation failed"); + ret = -1; + goto err; + } + + return 0; err: - pthread_mutex_destroy (&scrub_monitor->mutex); - pthread_cond_destroy (&scrub_monitor->cond); + pthread_mutex_destroy(&scrub_monitor->mutex); + pthread_cond_destroy(&scrub_monitor->cond); - pthread_mutex_destroy (&scrub_monitor->wakelock); - pthread_cond_destroy (&scrub_monitor->wakecond); + pthread_mutex_destroy(&scrub_monitor->wakelock); + pthread_cond_destroy(&scrub_monitor->wakecond); - pthread_mutex_destroy (&scrub_monitor->donelock); - pthread_cond_destroy (&scrub_monitor->donecond); + pthread_mutex_destroy(&scrub_monitor->donelock); + pthread_cond_destroy(&scrub_monitor->donecond); - LOCK_DESTROY (&scrub_monitor->lock); + LOCK_DESTROY(&scrub_monitor->lock); - return ret; + return ret; } int32_t -br_scrubber_init (xlator_t *this, br_private_t *priv) +br_scrubber_init(xlator_t *this, br_private_t *priv) { - struct br_scrubber *fsscrub = NULL; - int ret = 0; + struct br_scrubber *fsscrub = NULL; + int ret = 0; - priv->tbf = br_tbf_init (NULL, 0); - if (!priv->tbf) - return -1; + priv->tbf = tbf_init(NULL, 0); + if (!priv->tbf) + return -1; - ret = br_scrubber_monitor_init (this, priv); - if (ret) - return -1; + ret = br_scrubber_monitor_init(this, priv); + if (ret) + return -1; - fsscrub = &priv->fsscrub; + fsscrub = &priv->fsscrub; - fsscrub->this = this; - fsscrub->throttle = BR_SCRUB_THROTTLE_VOID; + fsscrub->this = this; + fsscrub->throttle = BR_SCRUB_THROTTLE_VOID; - pthread_mutex_init (&fsscrub->mutex, NULL); - pthread_cond_init (&fsscrub->cond, NULL); + pthread_mutex_init(&fsscrub->mutex, NULL); + pthread_cond_init(&fsscrub->cond, NULL); - fsscrub->nr_scrubbers = 0; - INIT_LIST_HEAD (&fsscrub->scrubbers); - INIT_LIST_HEAD (&fsscrub->scrublist); + fsscrub->nr_scrubbers = 0; + INIT_LIST_HEAD(&fsscrub->scrubbers); + INIT_LIST_HEAD(&fsscrub->scrublist); - return 0; + return 0; } diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.h b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.h index 63169068ed4..4e5f67bc021 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-scrub.h +++ b/xlators/features/bit-rot/src/bitd/bit-rot-scrub.h @@ -11,26 +11,36 @@ #ifndef __BIT_ROT_SCRUB_H__ #define __BIT_ROT_SCRUB_H__ -#include "xlator.h" +#include <glusterfs/xlator.h> #include "bit-rot.h" -void *br_fsscanner (void *); +void * +br_fsscanner(void *); -int32_t br_fsscan_schedule (xlator_t *); -int32_t br_fsscan_reschedule (xlator_t *); -int32_t br_fsscan_activate (xlator_t *); -int32_t br_fsscan_deactivate (xlator_t *); +int32_t +br_fsscan_schedule(xlator_t *); +int32_t +br_fsscan_reschedule(xlator_t *); +int32_t +br_fsscan_activate(xlator_t *); +int32_t +br_fsscan_deactivate(xlator_t *); +int32_t +br_fsscan_ondemand(xlator_t *); -int32_t br_scrubber_handle_options (xlator_t *, br_private_t *, dict_t *); +int32_t +br_scrubber_handle_options(xlator_t *, br_private_t *, dict_t *); int32_t -br_scrubber_monitor_init (xlator_t *, br_private_t *); +br_scrubber_monitor_init(xlator_t *, br_private_t *); -int32_t br_scrubber_init (xlator_t *, br_private_t *); +int32_t +br_scrubber_init(xlator_t *, br_private_t *); -int32_t br_collect_bad_objects_from_children (xlator_t *this, dict_t *dict); +int32_t +br_collect_bad_objects_from_children(xlator_t *this, dict_t *dict); void -br_child_set_scrub_state (br_child_t *, gf_boolean_t); +br_child_set_scrub_state(br_child_t *, gf_boolean_t); #endif /* __BIT_ROT_SCRUB_H__ */ diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-ssm.c b/xlators/features/bit-rot/src/bitd/bit-rot-ssm.c index d304fc804ee..753e31a3b23 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-ssm.c +++ b/xlators/features/bit-rot/src/bitd/bit-rot-ssm.c @@ -12,103 +12,113 @@ #include "bit-rot-scrub.h" #include "bit-rot-bitd-messages.h" -int br_scrub_ssm_noop (xlator_t *this) +int +br_scrub_ssm_noop(xlator_t *this) { - return 0; + return 0; } int -br_scrub_ssm_state_pause (xlator_t *this) +br_scrub_ssm_state_pause(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; - priv = this->private; - scrub_monitor = &priv->scrub_monitor; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, - "Scrubber paused"); - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_PAUSED); - return 0; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, + "Scrubber paused"); + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_PAUSED); + return 0; } int -br_scrub_ssm_state_ipause (xlator_t *this) +br_scrub_ssm_state_ipause(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; - priv = this->private; - scrub_monitor = &priv->scrub_monitor; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, - "Scrubber paused"); - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_IPAUSED); - return 0; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, + "Scrubber paused"); + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_IPAUSED); + return 0; } int -br_scrub_ssm_state_active (xlator_t *this) +br_scrub_ssm_state_active(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; - priv = this->private; - scrub_monitor = &priv->scrub_monitor; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - if (scrub_monitor->done) { - (void) br_fsscan_activate (this); - } else { - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, - "Scrubbing resumed"); - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_ACTIVE); - } + if (scrub_monitor->done) { + (void)br_fsscan_activate(this); + } else { + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, + "Scrubbing resumed"); + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_ACTIVE); + } - return 0; + return 0; } int -br_scrub_ssm_state_stall (xlator_t *this) +br_scrub_ssm_state_stall(xlator_t *this) { - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; - priv = this->private; - scrub_monitor = &priv->scrub_monitor; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, - "Volume is under active scrubbing. Pausing scrub.."); - _br_monitor_set_scrub_state (scrub_monitor, BR_SCRUB_STATE_STALLED); - return 0; + gf_msg(this->name, GF_LOG_INFO, 0, BRB_MSG_GENERIC_SSM_INFO, + "Volume is under active scrubbing. Pausing scrub.."); + _br_monitor_set_scrub_state(scrub_monitor, BR_SCRUB_STATE_STALLED); + return 0; } -static br_scrub_ssm_call * -br_scrub_ssm[BR_SCRUB_MAXSTATES][BR_SCRUB_MAXEVENTS] = { - {br_fsscan_schedule, br_scrub_ssm_state_ipause}, /* INACTIVE */ - {br_fsscan_reschedule, br_fsscan_deactivate}, /* PENDING */ - {br_scrub_ssm_noop, br_scrub_ssm_state_stall}, /* ACTIVE */ - {br_fsscan_activate, br_scrub_ssm_noop}, /* PAUSED */ - {br_fsscan_schedule, br_scrub_ssm_noop}, /* IPAUSED */ - {br_scrub_ssm_state_active, br_scrub_ssm_noop}, /* STALLED */ +static br_scrub_ssm_call *br_scrub_ssm[BR_SCRUB_MAXSTATES][BR_SCRUB_MAXEVENTS] = + { + /* INACTIVE */ + {br_fsscan_schedule, br_scrub_ssm_state_ipause, br_scrub_ssm_noop}, + /* PENDING */ + {br_fsscan_reschedule, br_fsscan_deactivate, br_fsscan_ondemand}, + /* ACTIVE */ + {br_scrub_ssm_noop, br_scrub_ssm_state_stall, br_scrub_ssm_noop}, + /* PAUSED */ + {br_fsscan_activate, br_scrub_ssm_noop, br_scrub_ssm_noop}, + /* IPAUSED */ + {br_fsscan_schedule, br_scrub_ssm_noop, br_scrub_ssm_noop}, + /* STALLED */ + {br_scrub_ssm_state_active, br_scrub_ssm_noop, br_scrub_ssm_noop}, }; int32_t -br_scrub_state_machine (xlator_t *this) +br_scrub_state_machine(xlator_t *this, gf_boolean_t scrub_ondemand) { - br_private_t *priv = NULL; - br_scrub_ssm_call *call = NULL; - struct br_scrubber *fsscrub = NULL; - br_scrub_state_t currstate = 0; - br_scrub_event_t event = 0; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - fsscrub = &priv->fsscrub; - scrub_monitor = &priv->scrub_monitor; - - currstate = scrub_monitor->state; - event = _br_child_get_scrub_event (fsscrub); - - call = br_scrub_ssm[currstate][event]; - return call (this); + br_private_t *priv = NULL; + br_scrub_ssm_call *call = NULL; + struct br_scrubber *fsscrub = NULL; + br_scrub_state_t currstate = 0; + br_scrub_event_t event = 0; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + fsscrub = &priv->fsscrub; + scrub_monitor = &priv->scrub_monitor; + + currstate = scrub_monitor->state; + if (scrub_ondemand) + event = BR_SCRUB_EVENT_ONDEMAND; + else + event = _br_child_get_scrub_event(fsscrub); + + call = br_scrub_ssm[currstate][event]; + return call(this); } diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-ssm.h b/xlators/features/bit-rot/src/bitd/bit-rot-ssm.h index 936ee4d837c..37b45a42eac 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot-ssm.h +++ b/xlators/features/bit-rot/src/bitd/bit-rot-ssm.h @@ -11,26 +11,28 @@ #ifndef __BIT_ROT_SSM_H__ #define __BIT_ROT_SSM_H__ -#include "xlator.h" +#include <glusterfs/xlator.h> typedef enum br_scrub_state { - BR_SCRUB_STATE_INACTIVE = 0, - BR_SCRUB_STATE_PENDING, - BR_SCRUB_STATE_ACTIVE, - BR_SCRUB_STATE_PAUSED, - BR_SCRUB_STATE_IPAUSED, - BR_SCRUB_STATE_STALLED, - BR_SCRUB_MAXSTATES, + BR_SCRUB_STATE_INACTIVE = 0, + BR_SCRUB_STATE_PENDING, + BR_SCRUB_STATE_ACTIVE, + BR_SCRUB_STATE_PAUSED, + BR_SCRUB_STATE_IPAUSED, + BR_SCRUB_STATE_STALLED, + BR_SCRUB_MAXSTATES, } br_scrub_state_t; typedef enum br_scrub_event { - BR_SCRUB_EVENT_SCHEDULE = 0, - BR_SCRUB_EVENT_PAUSE, - BR_SCRUB_MAXEVENTS, + BR_SCRUB_EVENT_SCHEDULE = 0, + BR_SCRUB_EVENT_PAUSE, + BR_SCRUB_EVENT_ONDEMAND, + BR_SCRUB_MAXEVENTS, } br_scrub_event_t; struct br_monitor; -int32_t br_scrub_state_machine (xlator_t *); +int32_t +br_scrub_state_machine(xlator_t *, gf_boolean_t); #endif /* __BIT_ROT_SSM_H__ */ diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-tbf.c b/xlators/features/bit-rot/src/bitd/bit-rot-tbf.c deleted file mode 100644 index f8b9b75d575..00000000000 --- a/xlators/features/bit-rot/src/bitd/bit-rot-tbf.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com> - This file is part of GlusterFS. - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. -*/ - -/** - * - * Basic token bucket implementation for rate limiting. As of now interfaces - * to throttle disk read request, directory entry scan and hash calculation - * are available. To throttle a particular request (operation), the call needs - * to be wrapped in-between throttling APIs, for e.g. - * - * TBF_THROTTLE_BEGIN (...); <-- induces "delays" if required - * { - * call (...); - * } - * TBF_THROTTLE_END (...); <-- not used atm, maybe needed later - * - */ - -#include "mem-pool.h" -#include "bit-rot-tbf.h" -#include "bit-rot-stub-mem-types.h" - -typedef struct br_tbf_throttle { - char done; - - pthread_mutex_t mutex; - pthread_cond_t cond; - - unsigned long tokens; - - struct list_head list; -} br_tbf_throttle_t; - -/** - * OK. Most implementations of TBF I've come across generate tokens - * every second (UML, etc..) and some chose sub-second granularity - * (blk-iothrottle cgroups). TBF algorithm itself does not enforce - * any logic for choosing generation interval and it seems pretty - * logical as one could jack up token count per interval w.r.t. - * generation rate. - * - * Value used here is chosen based on a series of test(s) performed - * to balance object signing time and not maxing out on all available - * CPU cores. It's obvious to have seconds granularity and jack up - * token count per interval, thereby achieving close to similar - * results. Let's stick to this as it seems to be working fine for - * the set of ops that are throttled. - */ -#define BR_TBF_TOKENGEN_INTERVAL_USEC 600000 - -static br_tbf_throttle_t * -br_tbf_init_throttle (unsigned long tokens_required) -{ - br_tbf_throttle_t *throttle = NULL; - - throttle = GF_CALLOC (1, sizeof (*throttle), - gf_br_mt_br_tbf_throttle_t); - if (!throttle) - return NULL; - - throttle->done = 0; - throttle->tokens = tokens_required; - INIT_LIST_HEAD (&throttle->list); - - (void) pthread_mutex_init (&throttle->mutex, NULL); - (void) pthread_cond_init (&throttle->cond, NULL); - - return throttle; -} - -void -_br_tbf_dispatch_queued (br_tbf_bucket_t *bucket) -{ - gf_boolean_t xcont = _gf_false; - br_tbf_throttle_t *tmp = NULL; - br_tbf_throttle_t *throttle = NULL; - - list_for_each_entry_safe (throttle, tmp, &bucket->queued, list) { - - pthread_mutex_lock (&throttle->mutex); - { - if (bucket->tokens < throttle->tokens) { - xcont = _gf_true; - goto unblock; - } - - /* this request can now be serviced */ - throttle->done = 1; - list_del_init (&throttle->list); - - bucket->tokens -= throttle->tokens; - pthread_cond_signal (&throttle->cond); - } - unblock: - pthread_mutex_unlock (&throttle->mutex); - if (xcont) - break; - } -} - -void *br_tbf_tokengenerator (void *arg) -{ - unsigned long tokenrate = 0; - unsigned long maxtokens = 0; - br_tbf_bucket_t *bucket = arg; - - tokenrate = bucket->tokenrate; - maxtokens = bucket->maxtokens; - - while (1) { - usleep (BR_TBF_TOKENGEN_INTERVAL_USEC); - - LOCK (&bucket->lock); - { - bucket->tokens += tokenrate; - if (bucket->tokens > maxtokens) - bucket->tokens = maxtokens; - - if (!list_empty (&bucket->queued)) - _br_tbf_dispatch_queued (bucket); - } - UNLOCK (&bucket->lock); - } - - return NULL; -} - -/** - * There is lazy synchronization between this routine (when invoked - * under br_tbf_mod() context) and br_tbf_throttle(). *bucket is - * updated _after_ all the required variables are initialized. - */ -static int32_t -br_tbf_init_bucket (br_tbf_t *tbf, br_tbf_opspec_t *spec) -{ - int ret = 0; - br_tbf_bucket_t *curr = NULL; - br_tbf_bucket_t **bucket = NULL; - - GF_ASSERT (spec->op >= BR_TBF_OP_MIN); - GF_ASSERT (spec->op <= BR_TBF_OP_MAX); - - /* no rate? no throttling. */ - if (!spec->rate) - return 0; - - bucket = tbf->bucket + spec->op; - - curr = GF_CALLOC (1, sizeof (*curr), gf_br_mt_br_tbf_bucket_t); - if (!curr) - goto error_return; - - LOCK_INIT (&curr->lock); - INIT_LIST_HEAD (&curr->queued); - - curr->tokens = 0; - curr->tokenrate = spec->rate; - curr->maxtokens = spec->maxlimit; - - ret = gf_thread_create (&curr->tokener, - NULL, br_tbf_tokengenerator, curr); - if (ret != 0) - goto freemem; - - *bucket = curr; - return 0; - - freemem: - LOCK_DESTROY (&curr->lock); - GF_FREE (curr); - error_return: - return -1; -} - -#define BR_TBF_ALLOC_SIZE \ - (sizeof (br_tbf_t) + (BR_TBF_OP_MAX * sizeof (br_tbf_bucket_t))) - -br_tbf_t * -br_tbf_init (br_tbf_opspec_t *tbfspec, unsigned int count) -{ - int32_t i = 0; - int32_t ret = 0; - br_tbf_t *tbf = NULL; - br_tbf_opspec_t *opspec = NULL; - - tbf = GF_CALLOC (1, BR_TBF_ALLOC_SIZE, gf_br_mt_br_tbf_t); - if (!tbf) - goto error_return; - - tbf->bucket = (br_tbf_bucket_t **) ((char *)tbf + sizeof (*tbf)); - for (i = 0; i < BR_TBF_OP_MAX; i++) { - *(tbf->bucket + i) = NULL; - } - - for (i = 0; i < count; i++) { - opspec = tbfspec + i; - - ret = br_tbf_init_bucket (tbf, opspec); - if (ret) - break; - } - - if (ret) - goto error_return; - - return tbf; - - error_return: - return NULL; -} - -static void -br_tbf_mod_bucket (br_tbf_bucket_t *bucket, br_tbf_opspec_t *spec) -{ - LOCK (&bucket->lock); - { - bucket->tokens = 0; - bucket->tokenrate = spec->rate; - bucket->maxtokens = spec->maxlimit; - } - UNLOCK (&bucket->lock); - - /* next token tick would unqueue pending operations */ -} - -int -br_tbf_mod (br_tbf_t *tbf, br_tbf_opspec_t *tbfspec) -{ - int ret = 0; - br_tbf_bucket_t *bucket = NULL; - br_tbf_ops_t op = BR_TBF_OP_MIN; - - if (!tbf || !tbfspec) - return -1; - - op = tbfspec->op; - - GF_ASSERT (op >= BR_TBF_OP_MIN); - GF_ASSERT (op <= BR_TBF_OP_MAX); - - bucket = *(tbf->bucket + op); - if (bucket) { - br_tbf_mod_bucket (bucket, tbfspec); - } else { - ret = br_tbf_init_bucket (tbf, tbfspec); - } - - return ret; -} - -void -br_tbf_throttle (br_tbf_t *tbf, br_tbf_ops_t op, unsigned long tokens_requested) -{ - char waitq = 0; - br_tbf_bucket_t *bucket = NULL; - br_tbf_throttle_t *throttle = NULL; - - GF_ASSERT (op >= BR_TBF_OP_MIN); - GF_ASSERT (op <= BR_TBF_OP_MAX); - - bucket = *(tbf->bucket + op); - if (!bucket) - return; - - LOCK (&bucket->lock); - { - /** - * if there are enough tokens in the bucket there is no need - * to throttle the request: therefore, consume the required - * number of tokens and continue. - */ - if (tokens_requested <= bucket->tokens) { - bucket->tokens -= tokens_requested; - } else { - throttle = br_tbf_init_throttle (tokens_requested); - if (!throttle) /* let it slip through for now.. */ - goto unblock; - - waitq = 1; - pthread_mutex_lock (&throttle->mutex); - list_add_tail (&throttle->list, &bucket->queued); - } - } - unblock: - UNLOCK (&bucket->lock); - - if (waitq) { - while (!throttle->done) { - pthread_cond_wait (&throttle->cond, &throttle->mutex); - } - - pthread_mutex_unlock (&throttle->mutex); - - pthread_mutex_destroy (&throttle->mutex); - pthread_cond_destroy (&throttle->cond); - - GF_FREE (throttle); - } -} diff --git a/xlators/features/bit-rot/src/bitd/bit-rot-tbf.h b/xlators/features/bit-rot/src/bitd/bit-rot-tbf.h deleted file mode 100644 index 5a41be4fd95..00000000000 --- a/xlators/features/bit-rot/src/bitd/bit-rot-tbf.h +++ /dev/null @@ -1,70 +0,0 @@ -/* - Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com> - This file is part of GlusterFS. - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. -*/ - -#include "list.h" -#include "xlator.h" -#include "locking.h" - -#ifndef __BIT_ROT_TBF_H__ -#define __BIT_ROT_TBF_H__ - -typedef enum br_tbf_ops { - BR_TBF_OP_MIN = -1, - BR_TBF_OP_HASH = 0, /* checksum calculation */ - BR_TBF_OP_READ = 1, /* inode read(s) */ - BR_TBF_OP_READDIR = 2, /* dentry read(s) */ - BR_TBF_OP_MAX = 3, -} br_tbf_ops_t; - -/** - * Operation rate specification - */ -typedef struct br_tbf_opspec { - br_tbf_ops_t op; - - unsigned long rate; - - unsigned long maxlimit; -} br_tbf_opspec_t; - -/** - * Token bucket for each operation type - */ -typedef struct br_tbf_bucket { - gf_lock_t lock; - - pthread_t tokener; /* token generator thread */ - - unsigned long tokenrate; /* token generation rate */ - - unsigned long tokens; /* number of current tokens */ - - unsigned long maxtokens; /* maximum token in the bucket */ - - struct list_head queued; /* list of non-conformant requests */ -} br_tbf_bucket_t; - -typedef struct br_tbf { - br_tbf_bucket_t **bucket; -} br_tbf_t; - -br_tbf_t * -br_tbf_init (br_tbf_opspec_t *, unsigned int); - -int -br_tbf_mod (br_tbf_t *, br_tbf_opspec_t *); - -void -br_tbf_throttle (br_tbf_t *, br_tbf_ops_t, unsigned long); - -#define TBF_THROTTLE_BEGIN(tbf, op, tokens) (br_tbf_throttle (tbf, op, tokens)) -#define TBF_THROTTLE_END(tbf, op, tokens) (void) - -#endif /** __BIT_ROT_TBF_H__ */ diff --git a/xlators/features/bit-rot/src/bitd/bit-rot.c b/xlators/features/bit-rot/src/bitd/bit-rot.c index 174af2b6a15..a2f1c343a1d 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot.c +++ b/xlators/features/bit-rot/src/bitd/bit-rot.c @@ -9,86 +9,81 @@ */ #include <ctype.h> -#include <sys/uio.h> -#include "glusterfs.h" -#include "xlator.h" -#include "logging.h" -#include "compat-errno.h" +#include <glusterfs/logging.h> +#include <glusterfs/compat-errno.h> #include "bit-rot.h" #include "bit-rot-scrub.h" #include <pthread.h> #include "bit-rot-bitd-messages.h" -#include "tw.h" +#define BR_HASH_CALC_READ_SIZE (128 * 1024) -#define BR_HASH_CALC_READ_SIZE (128 * 1024) - -typedef int32_t (br_child_handler)(xlator_t *, br_child_t *); +typedef int32_t(br_child_handler)(xlator_t *, br_child_t *); struct br_child_event { - xlator_t *this; + xlator_t *this; - br_child_t *child; + br_child_t *child; - br_child_handler *call; + br_child_handler *call; - struct list_head list; + struct list_head list; }; static int -br_find_child_index (xlator_t *this, xlator_t *child) +br_find_child_index(xlator_t *this, xlator_t *child) { - br_private_t *priv = NULL; - int i = -1; - int index = -1; + br_private_t *priv = NULL; + int i = -1; + int index = -1; - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); - priv = this->private; + priv = this->private; - for (i = 0; i < priv->child_count; i++) { - if (child == priv->children[i].xl) { - index = i; - break; - } + for (i = 0; i < priv->child_count; i++) { + if (child == priv->children[i].xl) { + index = i; + break; } + } out: - return index; + return index; } br_child_t * -br_get_child_from_brick_path (xlator_t *this, char *brick_path) +br_get_child_from_brick_path(xlator_t *this, char *brick_path) { - br_private_t *priv = NULL; - br_child_t *child = NULL; - br_child_t *tmp = NULL; - int i = 0; + br_private_t *priv = NULL; + br_child_t *child = NULL; + br_child_t *tmp = NULL; + int i = 0; - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - GF_VALIDATE_OR_GOTO (this->name, brick_path, out); + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + GF_VALIDATE_OR_GOTO(this->name, brick_path, out); - priv = this->private; + priv = this->private; - pthread_mutex_lock (&priv->lock); - { - for (i = 0; i < priv->child_count; i++) { - tmp = &priv->children[i]; - if (!strcmp (tmp->brick_path, brick_path)) { - child = tmp; - break; - } - } + pthread_mutex_lock(&priv->lock); + { + for (i = 0; i < priv->child_count; i++) { + tmp = &priv->children[i]; + if (!strcmp(tmp->brick_path, brick_path)) { + child = tmp; + break; + } } - pthread_mutex_unlock (&priv->lock); + } + pthread_mutex_unlock(&priv->lock); out: - return child; + return child; } /** @@ -96,18 +91,18 @@ out: * needed -- later. */ void * -br_brick_init (void *xl, struct gf_brick_spec *brick) +br_brick_init(void *xl, struct gf_brick_spec *brick) { - return brick; + return brick; } /** * and cleanup things here when allocated br_brick_init(). */ void -br_brick_fini (void *xl, char *brick, void *data) +br_brick_fini(void *xl, char *brick, void *data) { - return; + return; } /** @@ -119,109 +114,109 @@ br_brick_fini (void *xl, char *brick, void *data) * change stub to handle this change. */ static br_isignature_t * -br_prepare_signature (const unsigned char *sign, - unsigned long hashlen, - int8_t hashtype, br_object_t *object) +br_prepare_signature(const unsigned char *sign, unsigned long hashlen, + int8_t hashtype, br_object_t *object) { - br_isignature_t *signature = NULL; + br_isignature_t *signature = NULL; - /* TODO: use mem-pool */ - signature = GF_CALLOC (1, signature_size (hashlen + 1), - gf_br_stub_mt_signature_t); - if (!signature) - return NULL; + /* TODO: use mem-pool */ + signature = GF_CALLOC(1, signature_size(hashlen + 1), + gf_br_stub_mt_signature_t); + if (!signature) + return NULL; - /* object version */ - signature->signedversion = object->signedversion; + /* object version */ + signature->signedversion = object->signedversion; - /* signature length & type */ - signature->signaturelen = hashlen; - signature->signaturetype = hashtype; + /* signature length & type */ + signature->signaturelen = hashlen; + signature->signaturetype = hashtype; - /* signature itself */ - memcpy (signature->signature, (char *)sign, hashlen); - signature->signature[hashlen+1] = '\0'; + /* signature itself */ + memcpy(signature->signature, (char *)sign, hashlen); + signature->signature[hashlen + 1] = '\0'; - return signature; + return signature; } gf_boolean_t -bitd_is_bad_file (xlator_t *this, br_child_t *child, loc_t *loc, fd_t *fd) +bitd_is_bad_file(xlator_t *this, br_child_t *child, loc_t *loc, fd_t *fd) { - int32_t ret = -1; - dict_t *xattr = NULL; - inode_t *inode = NULL; - gf_boolean_t bad_file = _gf_false; + int32_t ret = -1; + dict_t *xattr = NULL; + inode_t *inode = NULL; + gf_boolean_t bad_file = _gf_false; - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); + GF_VALIDATE_OR_GOTO("bit-rot", this, out); - inode = (loc) ? loc->inode : fd->inode; + inode = (loc) ? loc->inode : fd->inode; - if (fd) - ret = syncop_fgetxattr (child->xl, fd, &xattr, - BITROT_OBJECT_BAD_KEY, NULL, NULL); - else if (loc) - ret = syncop_getxattr (child->xl, loc, - &xattr, BITROT_OBJECT_BAD_KEY, NULL, - NULL); + if (fd) + ret = syncop_fgetxattr(child->xl, fd, &xattr, BITROT_OBJECT_BAD_KEY, + NULL, NULL); + else if (loc) + ret = syncop_getxattr(child->xl, loc, &xattr, BITROT_OBJECT_BAD_KEY, + NULL, NULL); - if (!ret) { - gf_msg_debug (this->name, 0, "[GFID: %s] is marked corrupted", - uuid_utoa (inode->gfid)); - bad_file = _gf_true; - } + if (!ret) { + gf_msg_debug(this->name, 0, "[GFID: %s] is marked corrupted", + uuid_utoa(inode->gfid)); + bad_file = _gf_true; + } - if (xattr) - dict_unref (xattr); + if (xattr) + dict_unref(xattr); out: - return bad_file; + return bad_file; } /** * Do a lookup on the gfid present within the object. */ static int32_t -br_object_lookup (xlator_t *this, br_object_t *object, - struct iatt *iatt, inode_t **linked_inode) +br_object_lookup(xlator_t *this, br_object_t *object, struct iatt *iatt, + inode_t **linked_inode) { - int ret = -EINVAL; - loc_t loc = {0, }; - inode_t *inode = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, object, out); - - inode = inode_find (object->child->table, object->gfid); - - if (inode) - loc.inode = inode; - else - loc.inode = inode_new (object->child->table); - - if (!loc.inode) { - ret = -ENOMEM; - goto out; - } - - gf_uuid_copy (loc.gfid, object->gfid); - - ret = syncop_lookup (object->child->xl, &loc, iatt, NULL, NULL, NULL); - if (ret < 0) - goto out; - - /* - * The file might have been deleted by the application - * after getting the event, but before doing a lookup. - * So use linked_inode after inode_link is done. - */ - *linked_inode = inode_link (loc.inode, NULL, NULL, iatt); - if (*linked_inode) - inode_lookup (*linked_inode); + int ret = -EINVAL; + loc_t loc = { + 0, + }; + inode_t *inode = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, object, out); + + inode = inode_find(object->child->table, object->gfid); + + if (inode) + loc.inode = inode; + else + loc.inode = inode_new(object->child->table); + + if (!loc.inode) { + ret = -ENOMEM; + goto out; + } + + gf_uuid_copy(loc.gfid, object->gfid); + + ret = syncop_lookup(object->child->xl, &loc, iatt, NULL, NULL, NULL); + if (ret < 0) + goto out; + + /* + * The file might have been deleted by the application + * after getting the event, but before doing a lookup. + * So use linked_inode after inode_link is done. + */ + *linked_inode = inode_link(loc.inode, NULL, NULL, iatt); + if (*linked_inode) + inode_lookup(*linked_inode); out: - loc_wipe (&loc); - return ret; + loc_wipe(&loc); + return ret; } /** @@ -230,43 +225,44 @@ out: * passing xdata -- may be use frame->root->pid itself. */ static int32_t -br_object_open (xlator_t *this, - br_object_t *object, inode_t *inode, fd_t **openfd) +br_object_open(xlator_t *this, br_object_t *object, inode_t *inode, + fd_t **openfd) { - int32_t ret = -1; - fd_t *fd = NULL; - loc_t loc = {0, }; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, object, out); - GF_VALIDATE_OR_GOTO (this->name, inode, out); - - ret = -EINVAL; - fd = fd_create (inode, 0); - if (!fd) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, - "failed to create fd for the inode %s", - uuid_utoa (inode->gfid)); - goto out; - } - - loc.inode = inode_ref (inode); - gf_uuid_copy (loc.gfid, inode->gfid); - - ret = syncop_open (object->child->xl, &loc, O_RDONLY, fd, NULL, NULL); - if (ret) { - br_log_object (this, "open", inode->gfid, -ret); - fd_unref (fd); - fd = NULL; - } else { - fd_bind (fd); - *openfd = fd; - } - - loc_wipe (&loc); + int32_t ret = -1; + fd_t *fd = NULL; + loc_t loc = { + 0, + }; + + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, object, out); + GF_VALIDATE_OR_GOTO(this->name, inode, out); + + ret = -EINVAL; + fd = fd_create(inode, 0); + if (!fd) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, + "gfid=%s", uuid_utoa(inode->gfid), NULL); + goto out; + } + + loc.inode = inode_ref(inode); + gf_uuid_copy(loc.gfid, inode->gfid); + + ret = syncop_open(object->child->xl, &loc, O_RDONLY, fd, NULL, NULL); + if (ret) { + br_log_object(this, "open", inode->gfid, -ret); + fd_unref(fd); + fd = NULL; + } else { + fd_bind(fd); + *openfd = fd; + } + + loc_wipe(&loc); out: - return ret; + return ret; } /** @@ -274,287 +270,282 @@ out: * and return the buffer. */ static int32_t -br_object_read_block_and_sign (xlator_t *this, fd_t *fd, br_child_t *child, - off_t offset, size_t size, SHA256_CTX *sha256) +br_object_read_block_and_sign(xlator_t *this, fd_t *fd, br_child_t *child, + off_t offset, size_t size, SHA256_CTX *sha256) { - int32_t ret = -1; - br_tbf_t *tbf = NULL; - struct iovec *iovec = NULL; - struct iobref *iobref = NULL; - br_private_t *priv = NULL; - int count = 0; - int i = 0; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); - GF_VALIDATE_OR_GOTO (this->name, fd->inode, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - - priv = this->private; - - GF_VALIDATE_OR_GOTO (this->name, priv->tbf, out); - tbf = priv->tbf; - - ret = syncop_readv (child->xl, fd, - size, offset, 0, &iovec, &count, &iobref, NULL, - NULL); - - if (ret < 0) { - gf_msg (this->name, GF_LOG_ERROR, errno, BRB_MSG_READV_FAILED, - "readv on %s failed", uuid_utoa (fd->inode->gfid)); - ret = -1; - goto out; - } + int32_t ret = -1; + tbf_t *tbf = NULL; + struct iovec *iovec = NULL; + struct iobref *iobref = NULL; + br_private_t *priv = NULL; + int count = 0; + int i = 0; + + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); + GF_VALIDATE_OR_GOTO(this->name, fd->inode, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + + priv = this->private; + + GF_VALIDATE_OR_GOTO(this->name, priv->tbf, out); + tbf = priv->tbf; + + ret = syncop_readv(child->xl, fd, size, offset, 0, &iovec, &count, &iobref, + NULL, NULL, NULL); + + if (ret < 0) { + gf_smsg(this->name, GF_LOG_ERROR, errno, BRB_MSG_READV_FAILED, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + ret = -1; + goto out; + } - if (ret == 0) - goto out; + if (ret == 0) + goto out; - for (i = 0; i < count; i++) { - TBF_THROTTLE_BEGIN (tbf, BR_TBF_OP_HASH, iovec[i].iov_len); - { - SHA256_Update (sha256, (const unsigned char *) - (iovec[i].iov_base), iovec[i].iov_len); - } - TBF_THROTTLE_BEGIN (tbf, BR_TBF_OP_HASH, iovec[i].iov_len); + for (i = 0; i < count; i++) { + TBF_THROTTLE_BEGIN(tbf, TBF_OP_HASH, iovec[i].iov_len); + { + SHA256_Update(sha256, (const unsigned char *)(iovec[i].iov_base), + iovec[i].iov_len); } + TBF_THROTTLE_BEGIN(tbf, TBF_OP_HASH, iovec[i].iov_len); + } - out: - if (iovec) - GF_FREE (iovec); +out: + if (iovec) + GF_FREE(iovec); - if (iobref) - iobref_unref (iobref); + if (iobref) + iobref_unref(iobref); - return ret; + return ret; } int32_t -br_calculate_obj_checksum (unsigned char *md, - br_child_t *child, fd_t *fd, struct iatt *iatt) +br_calculate_obj_checksum(unsigned char *md, br_child_t *child, fd_t *fd, + struct iatt *iatt) { - int32_t ret = -1; - off_t offset = 0; - size_t block = BR_HASH_CALC_READ_SIZE; - xlator_t *this = NULL; + int32_t ret = -1; + off_t offset = 0; + size_t block = BR_HASH_CALC_READ_SIZE; + xlator_t *this = NULL; - SHA256_CTX sha256; + SHA256_CTX sha256; - GF_VALIDATE_OR_GOTO ("bit-rot", child, out); - GF_VALIDATE_OR_GOTO ("bit-rot", iatt, out); - GF_VALIDATE_OR_GOTO ("bit-rot", fd, out); + GF_VALIDATE_OR_GOTO("bit-rot", child, out); + GF_VALIDATE_OR_GOTO("bit-rot", iatt, out); + GF_VALIDATE_OR_GOTO("bit-rot", fd, out); - this = child->this; + this = child->this; - SHA256_Init (&sha256); + SHA256_Init(&sha256); - while (1) { - ret = br_object_read_block_and_sign (this, fd, child, - offset, block, &sha256); - if (ret < 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_BLOCK_READ_FAILED, "reading block with " - "offset %lu of object %s failed", offset, - uuid_utoa (fd->inode->gfid)); - break; - } - - if (ret == 0) - break; - - offset += ret; + while (1) { + ret = br_object_read_block_and_sign(this, fd, child, offset, block, + &sha256); + if (ret < 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_BLOCK_READ_FAILED, + "offset=%" PRIu64, offset, "object-gfid=%s", + uuid_utoa(fd->inode->gfid), NULL); + break; } if (ret == 0) - SHA256_Final (md, &sha256); + break; - out: - return ret; + offset += ret; + } + + if (ret == 0) + SHA256_Final(md, &sha256); + +out: + return ret; } static int32_t -br_object_checksum (unsigned char *md, - br_object_t *object, fd_t *fd, struct iatt *iatt) +br_object_checksum(unsigned char *md, br_object_t *object, fd_t *fd, + struct iatt *iatt) { - return br_calculate_obj_checksum (md, object->child, fd, iatt); + return br_calculate_obj_checksum(md, object->child, fd, iatt); } static int32_t -br_object_read_sign (inode_t *linked_inode, fd_t *fd, br_object_t *object, - struct iatt *iatt) +br_object_read_sign(inode_t *linked_inode, fd_t *fd, br_object_t *object, + struct iatt *iatt) { - int32_t ret = -1; - xlator_t *this = NULL; - dict_t *xattr = NULL; - unsigned char *md = NULL; - br_isignature_t *sign = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot", object, out); - GF_VALIDATE_OR_GOTO ("bit-rot", linked_inode, out); - GF_VALIDATE_OR_GOTO ("bit-rot", fd, out); - - this = object->this; - - md = GF_CALLOC (SHA256_DIGEST_LENGTH, sizeof (*md), gf_common_mt_char); - if (!md) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, - "failed to allocate memory for saving hash of the " - "object %s", uuid_utoa (fd->inode->gfid)); - goto out; - } - - ret = br_object_checksum (md, object, fd, iatt); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_CALC_CHECKSUM_FAILED, "calculating checksum " - "for the object %s failed", - uuid_utoa (linked_inode->gfid)); - goto free_signature; - } - - sign = br_prepare_signature (md, SHA256_DIGEST_LENGTH, - BR_SIGNATURE_TYPE_SHA256, object); - if (!sign) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, - "failed to get the signature for the object %s", - uuid_utoa (fd->inode->gfid)); - goto free_signature; - } - - xattr = dict_for_key_value - (GLUSTERFS_SET_OBJECT_SIGNATURE, - (void *)sign, signature_size (SHA256_DIGEST_LENGTH)); - - if (!xattr) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_SIGN_FAILED, - "dict allocation for signing failed for the object %s", - uuid_utoa (fd->inode->gfid)); - goto free_isign; - } - - ret = syncop_fsetxattr (object->child->xl, fd, xattr, 0, NULL, NULL); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_SIGN_FAILED, - "fsetxattr of signature to the object %s failed", - uuid_utoa (fd->inode->gfid)); - goto unref_dict; - } - - ret = 0; - - unref_dict: - dict_unref (xattr); - free_isign: - GF_FREE (sign); - free_signature: - GF_FREE (md); - out: - return ret; + int32_t ret = -1; + xlator_t *this = NULL; + dict_t *xattr = NULL; + unsigned char *md = NULL; + br_isignature_t *sign = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot", object, out); + GF_VALIDATE_OR_GOTO("bit-rot", linked_inode, out); + GF_VALIDATE_OR_GOTO("bit-rot", fd, out); + + this = object->this; + + md = GF_MALLOC(SHA256_DIGEST_LENGTH, gf_common_mt_char); + if (!md) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_SAVING_HASH_FAILED, + "object-gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto out; + } + + ret = br_object_checksum(md, object, fd, iatt); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_CALC_CHECKSUM_FAILED, + "object-gfid=%s", uuid_utoa(linked_inode->gfid), NULL); + goto free_signature; + } + + sign = br_prepare_signature(md, SHA256_DIGEST_LENGTH, + BR_SIGNATURE_TYPE_SHA256, object); + if (!sign) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, + "object-gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto free_signature; + } + + xattr = dict_for_key_value(GLUSTERFS_SET_OBJECT_SIGNATURE, (void *)sign, + signature_size(SHA256_DIGEST_LENGTH), _gf_true); + + if (!xattr) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_SIGN_FAILED, + "dict-allocation object-gfid=%s", uuid_utoa(fd->inode->gfid), + NULL); + goto free_isign; + } + + ret = syncop_fsetxattr(object->child->xl, fd, xattr, 0, NULL, NULL); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_SIGN_FAILED, + "fsetxattr object-gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto unref_dict; + } + + ret = 0; + +unref_dict: + dict_unref(xattr); +free_isign: + GF_FREE(sign); +free_signature: + GF_FREE(md); +out: + return ret; } -static int br_object_sign_softerror (int32_t op_errno) +static int +br_object_sign_softerror(int32_t op_errno) { - return ((op_errno == ENOENT) || (op_errno == ESTALE) - || (op_errno == ENODATA)); + return ((op_errno == ENOENT) || (op_errno == ESTALE) || + (op_errno == ENODATA)); } void -br_log_object (xlator_t *this, char *op, uuid_t gfid, int32_t op_errno) +br_log_object(xlator_t *this, char *op, uuid_t gfid, int32_t op_errno) { - int softerror = br_object_sign_softerror (op_errno); - if (softerror) { - gf_msg_debug (this->name, 0, "%s() failed on object %s " - "[reason: %s]", op, uuid_utoa (gfid), - strerror (op_errno)); - } else { - gf_msg (this->name, GF_LOG_ERROR, op_errno, BRB_MSG_OP_FAILED, - "%s() failed on object %s", op, uuid_utoa (gfid)); - } + int softerror = br_object_sign_softerror(op_errno); + if (softerror) { + gf_msg_debug(this->name, 0, + "%s() failed on object %s " + "[reason: %s]", + op, uuid_utoa(gfid), strerror(op_errno)); + } else { + gf_smsg(this->name, GF_LOG_ERROR, op_errno, BRB_MSG_OP_FAILED, "op=%s", + op, "gfid=%s", uuid_utoa(gfid), NULL); + } } void -br_log_object_path (xlator_t *this, char *op, - const char *path, int32_t op_errno) +br_log_object_path(xlator_t *this, char *op, const char *path, int32_t op_errno) { - int softerror = br_object_sign_softerror (op_errno); - if (softerror) { - gf_msg_debug (this->name, 0, "%s() failed on object %s " - "[reason: %s]", op, path, strerror (op_errno)); - } else { - gf_msg (this->name, GF_LOG_ERROR, op_errno, BRB_MSG_OP_FAILED, - "%s() failed on object %s", op, path); - } + int softerror = br_object_sign_softerror(op_errno); + if (softerror) { + gf_msg_debug(this->name, 0, + "%s() failed on object %s " + "[reason: %s]", + op, path, strerror(op_errno)); + } else { + gf_smsg(this->name, GF_LOG_ERROR, op_errno, BRB_MSG_OP_FAILED, "op=%s", + op, "path=%s", path, NULL); + } } static void -br_trigger_sign (xlator_t *this, br_child_t *child, - inode_t *linked_inode, loc_t *loc, gf_boolean_t need_reopen) +br_trigger_sign(xlator_t *this, br_child_t *child, inode_t *linked_inode, + loc_t *loc, gf_boolean_t need_reopen) { - fd_t *fd = NULL; - int32_t ret = -1; - uint32_t val = 0; - dict_t *dict = NULL; - pid_t pid = GF_CLIENT_PID_BITD; - - syncopctx_setfspid (&pid); - - val = (need_reopen == _gf_true) ? BR_OBJECT_REOPEN : BR_OBJECT_RESIGN; - - dict = dict_new (); - if (!dict) - goto out; - - ret = dict_set_uint32 (dict, BR_REOPEN_SIGN_HINT_KEY, val); - if (ret) - goto cleanup_dict; - - ret = -1; - fd = fd_create (linked_inode, 0); - if (!fd) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, - "Failed to create fd [GFID %s]", - uuid_utoa (linked_inode->gfid)); - goto cleanup_dict; - } - - ret = syncop_open (child->xl, loc, O_RDWR, fd, NULL, NULL); - if (ret) { - br_log_object (this, "open", linked_inode->gfid, -ret); - goto unref_fd; - } - - fd_bind (fd); - - ret = syncop_fsetxattr (child->xl, fd, dict, 0, NULL, NULL); - if (ret) - br_log_object (this, "fsetxattr", linked_inode->gfid, -ret); - - /* passthough: fd_unref() */ - - unref_fd: - fd_unref (fd); - cleanup_dict: - dict_unref (dict); - out: - if (ret) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_TRIGGER_SIGN, - "Could not trigger signingd for %s (reopen hint: %d)", - uuid_utoa (linked_inode->gfid), val); - } + fd_t *fd = NULL; + int32_t ret = -1; + uint32_t val = 0; + dict_t *dict = NULL; + pid_t pid = GF_CLIENT_PID_BITD; + + syncopctx_setfspid(&pid); + + val = (need_reopen == _gf_true) ? BR_OBJECT_REOPEN : BR_OBJECT_RESIGN; + + dict = dict_new(); + if (!dict) + goto out; + + ret = dict_set_uint32(dict, BR_REOPEN_SIGN_HINT_KEY, val); + if (ret) + goto cleanup_dict; + + ret = -1; + fd = fd_create(linked_inode, 0); + if (!fd) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_FD_CREATE_FAILED, + "gfid=%s", uuid_utoa(linked_inode->gfid), NULL); + goto cleanup_dict; + } + + ret = syncop_open(child->xl, loc, O_RDWR, fd, NULL, NULL); + if (ret) { + br_log_object(this, "open", linked_inode->gfid, -ret); + goto unref_fd; + } + + fd_bind(fd); + + ret = syncop_fsetxattr(child->xl, fd, dict, 0, NULL, NULL); + if (ret) + br_log_object(this, "fsetxattr", linked_inode->gfid, -ret); + + /* passthough: fd_unref() */ + +unref_fd: + fd_unref(fd); +cleanup_dict: + dict_unref(dict); +out: + if (ret) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRB_MSG_TRIGGER_SIGN_FAILED, + "gfid=%s", uuid_utoa(linked_inode->gfid), "reopen-hint-val=%d", + val, NULL); + } } static void -br_object_resign (xlator_t *this, - br_object_t *object, inode_t *linked_inode) +br_object_resign(xlator_t *this, br_object_t *object, inode_t *linked_inode) { - loc_t loc = {0, }; + loc_t loc = { + 0, + }; - loc.inode = inode_ref (linked_inode); - gf_uuid_copy (loc.gfid, linked_inode->gfid); + loc.inode = inode_ref(linked_inode); + gf_uuid_copy(loc.gfid, linked_inode->gfid); - br_trigger_sign (this, object->child, linked_inode, &loc, _gf_false); + br_trigger_sign(this, object->child, linked_inode, &loc, _gf_false); - loc_wipe (&loc); + loc_wipe(&loc); } /** @@ -562,122 +553,123 @@ br_object_resign (xlator_t *this, * some form of priority scheduling and/or read burstness to avoid starving * (or kicking) client I/O's. */ -static int32_t br_sign_object (br_object_t *object) +static int32_t +br_sign_object(br_object_t *object) { - int32_t ret = -1; - inode_t *linked_inode = NULL; - xlator_t *this = NULL; - fd_t *fd = NULL; - struct iatt iatt = {0, }; - pid_t pid = GF_CLIENT_PID_BITD; - br_sign_state_t sign_info = BR_SIGN_NORMAL; - - GF_VALIDATE_OR_GOTO ("bit-rot", object, out); - - this = object->this; - - /** - * FIXME: This is required as signing an object is restricted to - * clients with special frame->root->pid. Change the way client - * pid is set. - */ - syncopctx_setfspid (&pid); - - ret = br_object_lookup (this, object, &iatt, &linked_inode); - if (ret) { - br_log_object (this, "lookup", object->gfid, -ret); - goto out; - } - - /** - * For fd's that have notified for reopening, we send an explicit - * open() followed by a dummy write() call. This triggers the - * actual signing of the object. - */ - sign_info = ntohl (object->sign_info); - if (sign_info == BR_SIGN_REOPEN_WAIT) { - br_object_resign (this, object, linked_inode); - goto unref_inode; - } - - ret = br_object_open (this, object, linked_inode, &fd); - if (!fd) { - br_log_object (this, "open", object->gfid, -ret); - goto unref_inode; - } - - /** - * we have an open file descriptor on the object. from here on, - * do not be generous to file operation errors. - */ - gf_msg_debug (this->name, 0, "Signing object [%s]", - uuid_utoa (linked_inode->gfid)); - - ret = br_object_read_sign (linked_inode, fd, object, &iatt); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_READ_AND_SIGN_FAILED, "reading and signing of " - "the object %s failed", uuid_utoa (linked_inode->gfid)); - goto unref_fd; - } - - ret = 0; - - unref_fd: - fd_unref (fd); - unref_inode: - inode_unref (linked_inode); - out: - return ret; + int32_t ret = -1; + inode_t *linked_inode = NULL; + xlator_t *this = NULL; + fd_t *fd = NULL; + struct iatt iatt = { + 0, + }; + pid_t pid = GF_CLIENT_PID_BITD; + br_sign_state_t sign_info = BR_SIGN_NORMAL; + + GF_VALIDATE_OR_GOTO("bit-rot", object, out); + + this = object->this; + + /** + * FIXME: This is required as signing an object is restricted to + * clients with special frame->root->pid. Change the way client + * pid is set. + */ + syncopctx_setfspid(&pid); + + ret = br_object_lookup(this, object, &iatt, &linked_inode); + if (ret) { + br_log_object(this, "lookup", object->gfid, -ret); + goto out; + } + + /** + * For fd's that have notified for reopening, we send an explicit + * open() followed by a dummy write() call. This triggers the + * actual signing of the object. + */ + sign_info = ntohl(object->sign_info); + if (sign_info == BR_SIGN_REOPEN_WAIT) { + br_object_resign(this, object, linked_inode); + goto unref_inode; + } + + ret = br_object_open(this, object, linked_inode, &fd); + if (!fd) { + br_log_object(this, "open", object->gfid, -ret); + goto unref_inode; + } + + /** + * we have an open file descriptor on the object. from here on, + * do not be generous to file operation errors. + */ + gf_msg_debug(this->name, 0, "Signing object [%s]", + uuid_utoa(linked_inode->gfid)); + + ret = br_object_read_sign(linked_inode, fd, object, &iatt); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_READ_AND_SIGN_FAILED, + "gfid=%s", uuid_utoa(linked_inode->gfid), NULL); + goto unref_fd; + } + + ret = 0; + +unref_fd: + fd_unref(fd); +unref_inode: + inode_unref(linked_inode); +out: + return ret; } -static br_object_t *__br_pick_object (br_private_t *priv) +static br_object_t * +__br_pick_object(br_private_t *priv) { - br_object_t *object = NULL; + br_object_t *object = NULL; - while (list_empty (&priv->obj_queue->objects)) { - pthread_cond_wait (&priv->object_cond, &priv->lock); - } + while (list_empty(&priv->obj_queue->objects)) { + pthread_cond_wait(&priv->object_cond, &priv->lock); + } - object = list_first_entry - (&priv->obj_queue->objects, br_object_t, list); - list_del_init (&object->list); + object = list_first_entry(&priv->obj_queue->objects, br_object_t, list); + list_del_init(&object->list); - return object; + return object; } /** * This is the place where the signing of the objects is triggered. */ void * -br_process_object (void *arg) +br_process_object(void *arg) { - xlator_t *this = NULL; - br_object_t *object = NULL; - br_private_t *priv = NULL; - int32_t ret = -1; - - this = arg; - priv = this->private; - - THIS = this; - - for (;;) { - pthread_mutex_lock (&priv->lock); - { - object = __br_pick_object (priv); - } - pthread_mutex_unlock (&priv->lock); - - ret = br_sign_object (object); - if (ret && !br_object_sign_softerror (-ret)) - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_SIGN_FAILED, "SIGNING FAILURE [%s]", - uuid_utoa (object->gfid)); - GF_FREE (object); + xlator_t *this = NULL; + br_object_t *object = NULL; + br_private_t *priv = NULL; + int32_t ret = -1; + + this = arg; + priv = this->private; + + THIS = this; + + for (;;) { + pthread_mutex_lock(&priv->lock); + { + object = __br_pick_object(priv); } + pthread_mutex_unlock(&priv->lock); - return NULL; + ret = br_sign_object(object); + if (ret && !br_object_sign_softerror(-ret)) + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_SIGN_FAILED, + "gfid=%s", uuid_utoa(object->gfid), NULL); + GF_FREE(object); + } + + return NULL; } /** @@ -694,98 +686,97 @@ br_process_object (void *arg) * NOTE: use call_time to instrument signing time in br_sign_object(). */ void -br_add_object_to_queue (struct gf_tw_timer_list *timer, - void *data, unsigned long call_time) +br_add_object_to_queue(struct gf_tw_timer_list *timer, void *data, + unsigned long call_time) { - br_object_t *object = NULL; - xlator_t *this = NULL; - br_private_t *priv = NULL; - - object = data; - this = object->this; - priv = this->private; - - THIS = this; - - pthread_mutex_lock (&priv->lock); - { - list_add_tail (&object->list, &priv->obj_queue->objects); - pthread_cond_broadcast (&priv->object_cond); - } - pthread_mutex_unlock (&priv->lock); - - if (timer) - mem_put (timer); - return; + br_object_t *object = NULL; + xlator_t *this = NULL; + br_private_t *priv = NULL; + + object = data; + this = object->this; + priv = this->private; + + THIS = this; + + pthread_mutex_lock(&priv->lock); + { + list_add_tail(&object->list, &priv->obj_queue->objects); + pthread_cond_broadcast(&priv->object_cond); + } + pthread_mutex_unlock(&priv->lock); + + if (timer) + mem_put(timer); + return; } static br_object_t * -br_initialize_object (xlator_t *this, br_child_t *child, changelog_event_t *ev) +br_initialize_object(xlator_t *this, br_child_t *child, changelog_event_t *ev) { - br_object_t *object = NULL; + br_object_t *object = NULL; - object = GF_CALLOC (1, sizeof (*object), gf_br_mt_br_object_t); - if (!object) - goto out; - INIT_LIST_HEAD (&object->list); + object = GF_CALLOC(1, sizeof(*object), gf_br_mt_br_object_t); + if (!object) + goto out; + INIT_LIST_HEAD(&object->list); - object->this = this; - object->child = child; - gf_uuid_copy (object->gfid, ev->u.releasebr.gfid); + object->this = this; + object->child = child; + gf_uuid_copy(object->gfid, ev->u.releasebr.gfid); - /* NOTE: it's BE, but no worry */ - object->signedversion = ev->u.releasebr.version; - object->sign_info = ev->u.releasebr.sign_info; + /* NOTE: it's BE, but no worry */ + object->signedversion = ev->u.releasebr.version; + object->sign_info = ev->u.releasebr.sign_info; out: - return object; + return object; } static struct gf_tw_timer_list * -br_initialize_timer (xlator_t *this, br_object_t *object, br_child_t *child, - changelog_event_t *ev) +br_initialize_timer(xlator_t *this, br_object_t *object, br_child_t *child, + changelog_event_t *ev) { - br_private_t *priv = NULL; - struct gf_tw_timer_list *timer = NULL; + br_private_t *priv = NULL; + struct gf_tw_timer_list *timer = NULL; - priv = this->private; + priv = this->private; - timer = mem_get0 (child->timer_pool); - if (!timer) - goto out; - INIT_LIST_HEAD (&timer->entry); + timer = mem_get0(child->timer_pool); + if (!timer) + goto out; + INIT_LIST_HEAD(&timer->entry); - timer->expires = priv->expiry_time; - if (!timer->expires) - timer->expires = 1; + timer->expires = priv->expiry_time; + if (!timer->expires) + timer->expires = 1; - timer->data = object; - timer->function = br_add_object_to_queue; - gf_tw_add_timer (priv->timer_wheel, timer); + timer->data = object; + timer->function = br_add_object_to_queue; + gf_tw_add_timer(priv->timer_wheel, timer); out: - return timer; + return timer; } static int32_t -br_schedule_object_reopen (xlator_t *this, br_object_t *object, - br_child_t *child, changelog_event_t *ev) +br_schedule_object_reopen(xlator_t *this, br_object_t *object, + br_child_t *child, changelog_event_t *ev) { - struct gf_tw_timer_list *timer = NULL; - - timer = br_initialize_timer (this, object, child, ev); - if (!timer) - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_TIMER_FAILED, - "Failed to allocate object expiry timer [GFID: %s]", - uuid_utoa (object->gfid)); - return timer ? 0 : -1; + struct gf_tw_timer_list *timer = NULL; + + timer = br_initialize_timer(this, object, child, ev); + if (!timer) + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_SET_TIMER_FAILED, + "gfid=%s", uuid_utoa(object->gfid), NULL); + return timer ? 0 : -1; } static int32_t -br_object_quicksign (xlator_t *this, br_object_t *object) +br_object_quicksign(xlator_t *this, br_object_t *object) { - br_add_object_to_queue (NULL, object, 0ULL); - return 0; + br_add_object_to_queue(NULL, object, 0ULL); + return 0; } /** @@ -798,148 +789,146 @@ br_object_quicksign (xlator_t *this, br_object_t *object) * object as a single alloc and bifurcate their respective pointers. */ void -br_brick_callback (void *xl, char *brick, - void *data, changelog_event_t *ev) +br_brick_callback(void *xl, char *brick, void *data, changelog_event_t *ev) { - int32_t ret = 0; - uuid_t gfid = {0,}; - xlator_t *this = NULL; - br_object_t *object = NULL; - br_child_t *child = NULL; - br_sign_state_t sign_info = BR_SIGN_INVALID; - - this = xl; - - GF_VALIDATE_OR_GOTO (this->name, ev, out); - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - - GF_ASSERT (ev->ev_type == CHANGELOG_OP_TYPE_BR_RELEASE); - GF_ASSERT (!gf_uuid_is_null (ev->u.releasebr.gfid)); - - gf_uuid_copy (gfid, ev->u.releasebr.gfid); - - gf_msg_debug (this->name, 0, "RELEASE EVENT [GFID %s]", - uuid_utoa (gfid)); - - child = br_get_child_from_brick_path (this, brick); - if (!child) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SUBVOL_FAILED, - "failed to get the subvolume for the brick %s", brick); - goto out; - } - - object = br_initialize_object (this, child, ev); - if (!object) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, - "failed to allocate object memory [GFID: %s]", - uuid_utoa (gfid)); - goto out; - } - - /* sanity check */ - sign_info = ntohl (object->sign_info); - GF_ASSERT (sign_info != BR_SIGN_NORMAL); - - if (sign_info == BR_SIGN_REOPEN_WAIT) - ret = br_schedule_object_reopen (this, object, child, ev); - else - ret = br_object_quicksign (this, object); - - if (ret) - goto free_object; - - gf_msg_debug (this->name, 0, "->callback: brick [%s], type [%d]\n", - brick, ev->ev_type); - return; - - free_object: - GF_FREE (object); - out: - return; + int32_t ret = 0; + uuid_t gfid = { + 0, + }; + xlator_t *this = NULL; + br_object_t *object = NULL; + br_child_t *child = NULL; + br_sign_state_t sign_info = BR_SIGN_INVALID; + + this = xl; + + GF_VALIDATE_OR_GOTO(this->name, ev, out); + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + + GF_ASSERT(ev->ev_type == CHANGELOG_OP_TYPE_BR_RELEASE); + GF_ASSERT(!gf_uuid_is_null(ev->u.releasebr.gfid)); + + gf_uuid_copy(gfid, ev->u.releasebr.gfid); + + gf_msg_debug(this->name, 0, "RELEASE EVENT [GFID %s]", uuid_utoa(gfid)); + + child = br_get_child_from_brick_path(this, brick); + if (!child) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SUBVOL_FAILED, + "brick=%s", brick, NULL); + goto out; + } + + object = br_initialize_object(this, child, ev); + if (!object) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, + "object-gfid=%s", uuid_utoa(gfid), NULL); + goto out; + } + + /* sanity check */ + sign_info = ntohl(object->sign_info); + GF_ASSERT(sign_info != BR_SIGN_NORMAL); + + if (sign_info == BR_SIGN_REOPEN_WAIT) + ret = br_schedule_object_reopen(this, object, child, ev); + else + ret = br_object_quicksign(this, object); + + if (ret) + goto free_object; + + gf_msg_debug(this->name, 0, "->callback: brick [%s], type [%d]\n", brick, + ev->ev_type); + return; + +free_object: + GF_FREE(object); +out: + return; } void -br_fill_brick_spec (struct gf_brick_spec *brick, char *path) +br_fill_brick_spec(struct gf_brick_spec *brick, char *path) { - brick->brick_path = gf_strdup (path); - brick->filter = CHANGELOG_OP_TYPE_BR_RELEASE; - - brick->init = br_brick_init; - brick->fini = br_brick_fini; - brick->callback = br_brick_callback; - brick->connected = NULL; - brick->disconnected = NULL; + brick->brick_path = gf_strdup(path); + brick->filter = CHANGELOG_OP_TYPE_BR_RELEASE; + + brick->init = br_brick_init; + brick->fini = br_brick_fini; + brick->callback = br_brick_callback; + brick->connected = NULL; + brick->disconnected = NULL; } static gf_boolean_t -br_check_object_need_sign (xlator_t *this, dict_t *xattr, br_child_t *child) +br_check_object_need_sign(xlator_t *this, dict_t *xattr, br_child_t *child) { - int32_t ret = -1; - gf_boolean_t need_sign = _gf_false; - br_isignature_out_t *sign = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, xattr, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - - ret = dict_get_ptr (xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, - (void **)&sign); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, - "failed to get object signature info"); - goto out; - } + int32_t ret = -1; + gf_boolean_t need_sign = _gf_false; + br_isignature_out_t *sign = NULL; - /* Object has been opened and hence dirty. Do not sign it */ - if (sign->stale) - need_sign = _gf_true; + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, xattr, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); -out: - return need_sign; -} + ret = dict_get_ptr(xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, (void **)&sign); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_SIGN_FAILED, + "object-info", NULL); + goto out; + } + /* Object has been opened and hence dirty. Do not sign it */ + if (sign->stale) + need_sign = _gf_true; +out: + return need_sign; +} int32_t -br_prepare_loc (xlator_t *this, br_child_t *child, loc_t *parent, - gf_dirent_t *entry, loc_t *loc) +br_prepare_loc(xlator_t *this, br_child_t *child, loc_t *parent, + gf_dirent_t *entry, loc_t *loc) { - int32_t ret = -1; - inode_t *inode = NULL; - - inode = inode_grep (child->table, parent->inode, entry->d_name); - if (!inode) - loc->inode = inode_new (child->table); - else { - loc->inode = inode; - if (loc->inode->ia_type != IA_IFREG) { - gf_msg_debug (this->name, 0, "%s is not a regular " - "file", entry->d_name); - ret = 0; - goto out; - } - } - - loc->parent = inode_ref (parent->inode); - gf_uuid_copy (loc->pargfid, parent->inode->gfid); - - ret = inode_path (parent->inode, entry->d_name, (char **)&loc->path); - if (ret < 0 || !loc->path) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_PATH_FAILED, - "inode_path on %s (parent: %s) failed", entry->d_name, - uuid_utoa (parent->inode->gfid)); - goto out; - } - - loc->name = strrchr (loc->path, '/'); - if (loc->name) - loc->name++; - - ret = 1; + int32_t ret = -1; + inode_t *inode = NULL; + + inode = inode_grep(child->table, parent->inode, entry->d_name); + if (!inode) + loc->inode = inode_new(child->table); + else { + loc->inode = inode; + if (loc->inode->ia_type != IA_IFREG) { + gf_msg_debug(this->name, 0, + "%s is not a regular " + "file", + entry->d_name); + ret = 0; + goto out; + } + } + + loc->parent = inode_ref(parent->inode); + gf_uuid_copy(loc->pargfid, parent->inode->gfid); + + ret = inode_path(parent->inode, entry->d_name, (char **)&loc->path); + if (ret < 0 || !loc->path) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_PATH_FAILED, + "inode_path=%s", entry->d_name, "parent-gfid=%s", + uuid_utoa(parent->inode->gfid), NULL); + goto out; + } + + loc->name = strrchr(loc->path, '/'); + if (loc->name) + loc->name++; + + ret = 1; out: - return ret; + return ret; } /** @@ -949,154 +938,174 @@ out: * last run for whatever reason (node crashes, reboots, etc..) become * candidates for signing. This allows the signature to "catch up" with * the current state of the object. Triggering signing is easy: perform - * an open() followed by a close() therby resulting in call boomerang. + * an open() followed by a close() thereby resulting in call boomerang. * (though not back to itself :)) */ int -bitd_oneshot_crawl (xlator_t *subvol, - gf_dirent_t *entry, loc_t *parent, void *data) +bitd_oneshot_crawl(xlator_t *subvol, gf_dirent_t *entry, loc_t *parent, + void *data) { - int op_errno = 0; - br_child_t *child = NULL; - xlator_t *this = NULL; - loc_t loc = {0, }; - struct iatt iatt = {0, }; - struct iatt parent_buf = {0, }; - dict_t *xattr = NULL; - int32_t ret = -1; - inode_t *linked_inode = NULL; - gf_boolean_t need_signing = _gf_false; - - GF_VALIDATE_OR_GOTO ("bit-rot", subvol, out); - GF_VALIDATE_OR_GOTO ("bit-rot", data, out); - - child = data; - this = child->this; - - ret = br_prepare_loc (this, child, parent, entry, &loc); - if (!ret) - goto out; - - ret = syncop_lookup (child->xl, &loc, &iatt, &parent_buf, NULL, NULL); - if (ret) { - br_log_object_path (this, "lookup", loc.path, -ret); - goto out; - } - - linked_inode = inode_link (loc.inode, parent->inode, loc.name, &iatt); - if (linked_inode) - inode_lookup (linked_inode); - - if (iatt.ia_type != IA_IFREG) { - gf_msg_debug (this->name, 0, "%s is not a regular file, " - "skipping..", entry->d_name); - ret = 0; - goto unref_inode; - } + int op_errno = 0; + br_child_t *child = NULL; + xlator_t *this = NULL; + loc_t loc = { + 0, + }; + struct iatt iatt = { + 0, + }; + struct iatt parent_buf = { + 0, + }; + dict_t *xattr = NULL; + int32_t ret = -1; + inode_t *linked_inode = NULL; + gf_boolean_t need_signing = _gf_false; + gf_boolean_t need_reopen = _gf_true; + + GF_VALIDATE_OR_GOTO("bit-rot", subvol, out); + GF_VALIDATE_OR_GOTO("bit-rot", data, out); + + child = data; + this = child->this; + + ret = br_prepare_loc(this, child, parent, entry, &loc); + if (!ret) + goto out; + + ret = syncop_lookup(child->xl, &loc, &iatt, &parent_buf, NULL, NULL); + if (ret) { + br_log_object_path(this, "lookup", loc.path, -ret); + goto out; + } + + linked_inode = inode_link(loc.inode, parent->inode, loc.name, &iatt); + if (linked_inode) + inode_lookup(linked_inode); + + if (iatt.ia_type != IA_IFREG) { + gf_msg_debug(this->name, 0, + "%s is not a regular file, " + "skipping..", + entry->d_name); + ret = 0; + goto unref_inode; + } + + /** + * As of now, 2 cases are possible and handled. + * 1) GlusterFS is upgraded from a previous version which does not + * have any idea about bit-rot and have data in the filesystem. + * In this case syncop_getxattr fails with ENODATA and the object + * is signed. (In real, when crawler sends lookup, bit-rot-stub + * creates the xattrs before returning lookup reply) + * 2) Bit-rot was not enabled or BitD was does for some reasons, during + * which some files were created, but since BitD was down, were not + * signed. + * If the file was just created and was being written some data when + * the down BitD came up, then bit-rot stub should be intelligent to + * identify this case (by comparing the ongoing version or by checking + * if there are any fds present for that inode) and handle properly. + */ + + if (bitd_is_bad_file(this, child, &loc, NULL)) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SKIP_OBJECT, "path=%s", + loc.path, NULL); + goto unref_inode; + } + + ret = syncop_getxattr(child->xl, &loc, &xattr, + GLUSTERFS_GET_OBJECT_SIGNATURE, NULL, NULL); + if (ret < 0) { + op_errno = -ret; + br_log_object(this, "getxattr", linked_inode->gfid, op_errno); /** - * As of now, 2 cases are possible and handled. - * 1) GlusterFS is upgraded from a previous version which does not - * have any idea about bit-rot and have data in the filesystem. - * In this case syncop_getxattr fails with ENODATA and the object - * is signed. (In real, when crawler sends lookup, bit-rot-stub - * creates the xattrs before returning lookup reply) - * 2) Bit-rot was not enabled or BitD was dows for some reasons, during - * which some files were created, but since BitD was down, were not - * signed. - * If the file was just created and was being written some data when - * the down BitD came up, then bit-rot stub should be intelligent to - * identify this case (by comparing the ongoing version or by checking - * if there are any fds present for that inode) and handle properly. + * No need to sign the zero byte objects as the signing + * happens upon first modification of the object. */ + if (op_errno == ENODATA && (iatt.ia_size != 0)) + need_signing = _gf_true; + if (op_errno == EINVAL) + gf_smsg(this->name, GF_LOG_WARNING, 0, + BRB_MSG_PARTIAL_VERSION_PRESENCE, "gfid=%s", + uuid_utoa(linked_inode->gfid), NULL); + } else { + need_signing = br_check_object_need_sign(this, xattr, child); - if (bitd_is_bad_file (this, child, &loc, NULL)) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_SKIP_OBJECT, - "Entry [%s] is marked corrupted.. skipping.", loc.path); - goto unref_inode; - } - - ret = syncop_getxattr (child->xl, &loc, &xattr, - GLUSTERFS_GET_OBJECT_SIGNATURE, NULL, NULL); - if (ret < 0) { - op_errno = -ret; - br_log_object (this, "getxattr", linked_inode->gfid, op_errno); - - /** - * No need to sign the zero byte objects as the signing - * happens upon first modification of the object. - */ - if (op_errno == ENODATA && (iatt.ia_size != 0)) - need_signing = _gf_true; - if (op_errno == EINVAL) - gf_msg (this->name, GF_LOG_WARNING, 0, - BRB_MSG_PARTIAL_VERSION_PRESENCE, "Partial " - "version xattr presence detected, ignoring " - "[GFID: %s]", uuid_utoa (linked_inode->gfid)); - } else { - need_signing = br_check_object_need_sign (this, xattr, child); + /* + * If we are here means, bitrot daemon has started. Is it just + * a simple restart of the daemon or is it started because the + * feature is enabled is something hard to determine. Hence, + * if need_signing is false (because bit-rot version and signature + * are present), then still go ahead and sign it. + */ + if (!need_signing) { + need_signing = _gf_true; + need_reopen = _gf_true; } + } - if (!need_signing) - goto unref_dict; + if (!need_signing) + goto unref_dict; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_TRIGGER_SIGN, - "Triggering signing for %s [GFID: %s | Brick: %s]", - loc.path, uuid_utoa (linked_inode->gfid), child->brick_path); - br_trigger_sign (this, child, linked_inode, &loc, _gf_true); + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_TRIGGER_SIGN, "path=%s", + loc.path, "gfid=%s", uuid_utoa(linked_inode->gfid), "Brick-path=%s", + child->brick_path, NULL); + br_trigger_sign(this, child, linked_inode, &loc, need_reopen); - ret = 0; + ret = 0; - unref_dict: - if (xattr) - dict_unref (xattr); - unref_inode: - inode_unref (linked_inode); - out: - loc_wipe (&loc); +unref_dict: + if (xattr) + dict_unref(xattr); +unref_inode: + inode_unref(linked_inode); +out: + loc_wipe(&loc); - return ret; + return ret; } #define BR_CRAWL_THROTTLE_COUNT 50 -#define BR_CRAWL_THROTTLE_ZZZ 5 +#define BR_CRAWL_THROTTLE_ZZZ 5 void * -br_oneshot_signer (void *arg) +br_oneshot_signer(void *arg) { - loc_t loc = {0,}; - xlator_t *this = NULL; - br_child_t *child = NULL; + loc_t loc = { + 0, + }; + xlator_t *this = NULL; + br_child_t *child = NULL; - child = arg; - this = child->this; + child = arg; + this = child->this; - THIS = this; + THIS = this; - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_CRAWLING_START, - "Crawling brick [%s], scanning for unsigned objects", - child->brick_path); + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_CRAWLING_START, "brick-path=%s", + child->brick_path, NULL); - loc.inode = child->table->root; - (void) syncop_ftw_throttle - (child->xl, &loc, - GF_CLIENT_PID_BITD, child, bitd_oneshot_crawl, - BR_CRAWL_THROTTLE_COUNT, BR_CRAWL_THROTTLE_ZZZ); + loc.inode = child->table->root; + (void)syncop_ftw_throttle(child->xl, &loc, GF_CLIENT_PID_BITD, child, + bitd_oneshot_crawl, BR_CRAWL_THROTTLE_COUNT, + BR_CRAWL_THROTTLE_ZZZ); - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_CRAWLING_FINISH, - "Completed crawling brick [%s]", child->brick_path); + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_CRAWLING_FINISH, + "brick-path=%s", child->brick_path, NULL); - return NULL; + return NULL; } static void -br_set_child_state (br_child_t *child, br_child_state_t state) +br_set_child_state(br_child_t *child, br_child_state_t state) { - pthread_mutex_lock (&child->lock); - { - _br_set_child_state (child, state); - } - pthread_mutex_unlock (&child->lock); + pthread_mutex_lock(&child->lock); + { + _br_set_child_state(child, state); + } + pthread_mutex_unlock(&child->lock); } /** @@ -1111,158 +1120,157 @@ br_set_child_state (br_child_t *child, br_child_state_t state) * notifications. */ static int32_t -br_enact_signer (xlator_t *this, br_child_t *child, br_stub_init_t *stub) +br_enact_signer(xlator_t *this, br_child_t *child, br_stub_init_t *stub) { - int32_t ret = 0; - br_private_t *priv = NULL; - struct gf_brick_spec *brick = NULL; - - priv = this->private; - - brick = GF_CALLOC (1, sizeof (struct gf_brick_spec), - gf_common_mt_gf_brick_spec_t); - if (!brick) - goto error_return; - - br_fill_brick_spec (brick, stub->export); - ret = gf_changelog_register_generic - (brick, 1, 1, this->ctx->cmd_args.log_file, -1, this); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, errno, - BRB_MSG_REGISTER_FAILED, "Register to changelog " - "failed"); - goto dealloc; - } - - child->threadrunning = 0; - ret = gf_thread_create (&child->thread, NULL, br_oneshot_signer, child); - if (ret) - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_SPAWN_FAILED, - "failed to spawn FS crawler thread"); - else - child->threadrunning = 1; - - /* it's OK to continue, "old" objects would be signed when modified */ - list_add_tail (&child->list, &priv->signing); - return 0; - - dealloc: - GF_FREE (brick); - error_return: - return -1; + int32_t ret = 0; + br_private_t *priv = NULL; + struct gf_brick_spec *brick = NULL; + + priv = this->private; + + brick = GF_CALLOC(1, sizeof(struct gf_brick_spec), + gf_common_mt_gf_brick_spec_t); + if (!brick) + goto error_return; + + br_fill_brick_spec(brick, stub->export); + ret = gf_changelog_register_generic(brick, 1, 1, + this->ctx->cmd_args.log_file, -1, this); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, BRB_MSG_REGISTER_FAILED, NULL); + goto dealloc; + } + + child->threadrunning = 0; + ret = gf_thread_create(&child->thread, NULL, br_oneshot_signer, child, + "brosign"); + if (ret) + gf_smsg(this->name, GF_LOG_WARNING, 0, BRB_MSG_SPAWN_FAILED, + "FS-crawler-thread", NULL); + else + child->threadrunning = 1; + + /* it's OK to continue, "old" objects would be signed when modified */ + list_add_tail(&child->list, &priv->signing); + return 0; + +dealloc: + GF_FREE(brick); +error_return: + return -1; } static int32_t -br_launch_scrubber (xlator_t *this, br_child_t *child, - struct br_scanfs *fsscan, struct br_scrubber *fsscrub) +br_launch_scrubber(xlator_t *this, br_child_t *child, struct br_scanfs *fsscan, + struct br_scrubber *fsscrub) { - int32_t ret = -1; - br_private_t *priv = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - - scrub_monitor = &priv->scrub_monitor; - ret = gf_thread_create (&child->thread, NULL, br_fsscanner, child); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ALERT, 0, BRB_MSG_SPAWN_FAILED, - "failed to spawn bitrot scrubber daemon [Brick: %s]", - child->brick_path); - goto error_return; - } + int32_t ret = -1; + br_private_t *priv = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + + scrub_monitor = &priv->scrub_monitor; + ret = gf_thread_create(&child->thread, NULL, br_fsscanner, child, + "brfsscan"); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ALERT, 0, BRB_MSG_SPAWN_FAILED, + "bitrot-scrubber-daemon Brick-path=%s", child->brick_path, + NULL); + goto error_return; + } + + /* Signal monitor to kick off state machine*/ + pthread_mutex_lock(&scrub_monitor->mutex); + { + if (!scrub_monitor->inited) + pthread_cond_signal(&scrub_monitor->cond); + scrub_monitor->inited = _gf_true; + } + pthread_mutex_unlock(&scrub_monitor->mutex); + + /** + * Everything has been setup.. add this subvolume to scrubbers + * list. + */ + pthread_mutex_lock(&fsscrub->mutex); + { + list_add_tail(&child->list, &fsscrub->scrublist); + pthread_cond_broadcast(&fsscrub->cond); + } + pthread_mutex_unlock(&fsscrub->mutex); + + return 0; - /* Signal monitor to kick off state machine*/ - pthread_mutex_lock (&scrub_monitor->mutex); - { - if (!scrub_monitor->inited) - pthread_cond_signal (&scrub_monitor->cond); - scrub_monitor->inited = _gf_true; - } - pthread_mutex_unlock (&scrub_monitor->mutex); - - /** - * Everything has been setup.. add this subvolume to scrubbers - * list. - */ - pthread_mutex_lock (&fsscrub->mutex); - { - list_add_tail (&child->list, &fsscrub->scrublist); - pthread_cond_broadcast (&fsscrub->cond); - } - pthread_mutex_unlock (&fsscrub->mutex); - - return 0; - - error_return: - return -1; +error_return: + return -1; } static int32_t -br_enact_scrubber (xlator_t *this, br_child_t *child) +br_enact_scrubber(xlator_t *this, br_child_t *child) { - int32_t ret = 0; - br_private_t *priv = NULL; - struct br_scanfs *fsscan = NULL; - struct br_scrubber *fsscrub = NULL; + int32_t ret = 0; + br_private_t *priv = NULL; + struct br_scanfs *fsscan = NULL; + struct br_scrubber *fsscrub = NULL; - priv = this->private; + priv = this->private; - fsscan = &child->fsscan; - fsscrub = &priv->fsscrub; + fsscan = &child->fsscan; + fsscrub = &priv->fsscrub; - /** - * if this child already witnesses a successfull connection earlier - * there's no need to initialize mutexes, condvars, etc.. - */ - if (_br_child_witnessed_connection (child)) - return br_launch_scrubber (this, child, fsscan, fsscrub); + /** + * if this child already witnesses a successful connection earlier + * there's no need to initialize mutexes, condvars, etc.. + */ + if (_br_child_witnessed_connection(child)) + return br_launch_scrubber(this, child, fsscan, fsscrub); - LOCK_INIT (&fsscan->entrylock); - pthread_mutex_init (&fsscan->waitlock, NULL); - pthread_cond_init (&fsscan->waitcond, NULL); + LOCK_INIT(&fsscan->entrylock); + pthread_mutex_init(&fsscan->waitlock, NULL); + pthread_cond_init(&fsscan->waitcond, NULL); - fsscan->entries = 0; - INIT_LIST_HEAD (&fsscan->queued); - INIT_LIST_HEAD (&fsscan->ready); + fsscan->entries = 0; + INIT_LIST_HEAD(&fsscan->queued); + INIT_LIST_HEAD(&fsscan->ready); - ret = br_launch_scrubber (this, child, fsscan, fsscrub); - if (ret) - goto error_return; + ret = br_launch_scrubber(this, child, fsscan, fsscrub); + if (ret) + goto error_return; - return 0; + return 0; - error_return: - LOCK_DESTROY (&fsscan->entrylock); - pthread_mutex_destroy (&fsscan->waitlock); - pthread_cond_destroy (&fsscan->waitcond); +error_return: + LOCK_DESTROY(&fsscan->entrylock); + pthread_mutex_destroy(&fsscan->waitlock); + pthread_cond_destroy(&fsscan->waitcond); - return -1; + return -1; } static int32_t -br_child_enaction (xlator_t *this, br_child_t *child, br_stub_init_t *stub) +br_child_enaction(xlator_t *this, br_child_t *child, br_stub_init_t *stub) { - int32_t ret = -1; - br_private_t *priv = this->private; + int32_t ret = -1; + br_private_t *priv = this->private; - pthread_mutex_lock (&child->lock); - { - if (priv->iamscrubber) - ret = br_enact_scrubber (this, child); - else - ret = br_enact_signer (this, child, stub); - - if (!ret) { - child->witnessed = 1; - _br_set_child_state (child, BR_CHILD_STATE_CONNECTED); - gf_msg (this->name, GF_LOG_INFO, - 0, BRB_MSG_CONNECTED_TO_BRICK, - "Connected to brick %s..", child->brick_path); - } + pthread_mutex_lock(&child->lock); + { + if (priv->iamscrubber) + ret = br_enact_scrubber(this, child); + else + ret = br_enact_signer(this, child, stub); + + if (!ret) { + child->witnessed = 1; + _br_set_child_state(child, BR_CHILD_STATE_CONNECTED); + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_CONNECTED_TO_BRICK, + "brick-path=%s", child->brick_path, NULL); } - pthread_mutex_unlock (&child->lock); + } + pthread_mutex_unlock(&child->lock); - return ret; + return ret; } /** @@ -1273,129 +1281,130 @@ br_child_enaction (xlator_t *this, br_child_t *child, br_stub_init_t *stub) * process either acts as a signer or a scrubber. */ int32_t -br_brick_connect (xlator_t *this, br_child_t *child) +br_brick_connect(xlator_t *this, br_child_t *child) { - int32_t ret = -1; - loc_t loc = {0, }; - struct iatt buf = {0, }; - struct iatt parent = {0, }; - br_stub_init_t *stub = NULL; - dict_t *xattr = NULL; - int op_errno = 0; - - GF_VALIDATE_OR_GOTO ("bit-rot", this, out); - GF_VALIDATE_OR_GOTO (this->name, child, out); - GF_VALIDATE_OR_GOTO (this->name, this->private, out); - - br_child_set_scrub_state (child, _gf_false); - br_set_child_state (child, BR_CHILD_STATE_INITIALIZING); - - loc.inode = inode_ref (child->table->root); - gf_uuid_copy (loc.gfid, loc.inode->gfid); - loc.path = gf_strdup ("/"); - - ret = syncop_lookup (child->xl, &loc, &buf, &parent, NULL, NULL); - if (ret) { - op_errno = -ret; - ret = -1; - gf_msg (this->name, GF_LOG_ERROR, op_errno, - BRB_MSG_LOOKUP_FAILED, "lookup on root failed"); - goto wipeloc; - } - - ret = syncop_getxattr (child->xl, &loc, &xattr, - GLUSTERFS_GET_BR_STUB_INIT_TIME, NULL, NULL); - if (ret) { - op_errno = -ret; - ret = -1; - gf_msg (this->name, GF_LOG_ERROR, op_errno, - BRB_MSG_GET_INFO_FAILED, "failed to get stub info"); - goto wipeloc; - } - - ret = dict_get_ptr (xattr, GLUSTERFS_GET_BR_STUB_INIT_TIME, - (void **)&stub); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_INFO_FAILED, - "failed to extract stub information"); - goto free_dict; - } - - memcpy (child->brick_path, stub->export, strlen (stub->export) + 1); - child->tv.tv_sec = ntohl (stub->timebuf[0]); - child->tv.tv_usec = ntohl (stub->timebuf[1]); - - ret = br_child_enaction (this, child, stub); - - free_dict: - dict_unref (xattr); - wipeloc: - loc_wipe (&loc); - out: - if (ret) - br_set_child_state (child, BR_CHILD_STATE_CONNFAILED); - return ret; + int32_t ret = -1; + loc_t loc = { + 0, + }; + struct iatt buf = { + 0, + }; + struct iatt parent = { + 0, + }; + br_stub_init_t *stub = NULL; + dict_t *xattr = NULL; + int op_errno = 0; + + GF_VALIDATE_OR_GOTO("bit-rot", this, out); + GF_VALIDATE_OR_GOTO(this->name, child, out); + GF_VALIDATE_OR_GOTO(this->name, this->private, out); + + br_child_set_scrub_state(child, _gf_false); + br_set_child_state(child, BR_CHILD_STATE_INITIALIZING); + + loc.inode = inode_ref(child->table->root); + gf_uuid_copy(loc.gfid, loc.inode->gfid); + loc.path = gf_strdup("/"); + + ret = syncop_lookup(child->xl, &loc, &buf, &parent, NULL, NULL); + if (ret) { + op_errno = -ret; + ret = -1; + gf_smsg(this->name, GF_LOG_ERROR, op_errno, BRB_MSG_LOOKUP_FAILED, + NULL); + goto wipeloc; + } + + ret = syncop_getxattr(child->xl, &loc, &xattr, + GLUSTERFS_GET_BR_STUB_INIT_TIME, NULL, NULL); + if (ret) { + op_errno = -ret; + ret = -1; + gf_smsg(this->name, GF_LOG_ERROR, op_errno, BRB_MSG_GET_INFO_FAILED, + NULL); + goto wipeloc; + } + + ret = dict_get_ptr(xattr, GLUSTERFS_GET_BR_STUB_INIT_TIME, (void **)&stub); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_GET_INFO_FAILED, NULL); + goto free_dict; + } + + memcpy(child->brick_path, stub->export, strlen(stub->export) + 1); + child->tv.tv_sec = ntohl(stub->timebuf[0]); + child->tv.tv_usec = ntohl(stub->timebuf[1]); + + ret = br_child_enaction(this, child, stub); + +free_dict: + dict_unref(xattr); +wipeloc: + loc_wipe(&loc); +out: + if (ret) + br_set_child_state(child, BR_CHILD_STATE_CONNFAILED); + return ret; } /* TODO: cleanup signer */ static int32_t -br_cleanup_signer (xlator_t *this, br_child_t *child) +br_cleanup_signer(xlator_t *this, br_child_t *child) { - return 0; + return 0; } static int32_t -br_cleanup_scrubber (xlator_t *this, br_child_t *child) +br_cleanup_scrubber(xlator_t *this, br_child_t *child) { - int32_t ret = 0; - br_private_t *priv = NULL; - struct br_scrubber *fsscrub = NULL; - struct br_monitor *scrub_monitor = NULL; - - priv = this->private; - fsscrub = &priv->fsscrub; - scrub_monitor = &priv->scrub_monitor; - - if (_br_is_child_scrub_active (child)) { - scrub_monitor->active_child_count--; - br_child_set_scrub_state (child, _gf_false); - } - - /** - * 0x0: child (brick) goes out of rotation - * - * This is fully safe w.r.t. entries for this child being actively - * scrubbed. Each of the scrubber thread(s) would finish scrubbing - * the entry (probably failing due to disconnection) and either - * putting the entry back into the queue or continuing further. - * Either way, pending entries for this child's queue need not be - * drained; entries just sit there in the queued/ready list to be - * consumed later upon re-connection. - */ - pthread_mutex_lock (&fsscrub->mutex); - { - list_del_init (&child->list); - } - pthread_mutex_unlock (&fsscrub->mutex); - - /** - * 0x1: cleanup scanner thread - * - * The pending timer needs to be removed _after_ cleaning up the - * filesystem scanner (scheduling the next scrub time is not a - * cancellation point). - */ - ret = gf_thread_cleanup_xint (child->thread); - if (ret) - gf_msg (this->name, GF_LOG_INFO, - 0, BRB_MSG_SCRUB_THREAD_CLEANUP, - "Error cleaning up scanner thread"); - - gf_msg (this->name, GF_LOG_INFO, - 0, BRB_MSG_SCRUBBER_CLEANED, - "Cleaned up scrubber for brick [%s]", child->brick_path); - - return 0; + int32_t ret = 0; + br_private_t *priv = NULL; + struct br_scrubber *fsscrub = NULL; + struct br_monitor *scrub_monitor = NULL; + + priv = this->private; + fsscrub = &priv->fsscrub; + scrub_monitor = &priv->scrub_monitor; + + if (_br_is_child_scrub_active(child)) { + scrub_monitor->active_child_count--; + br_child_set_scrub_state(child, _gf_false); + } + + /** + * 0x0: child (brick) goes out of rotation + * + * This is fully safe w.r.t. entries for this child being actively + * scrubbed. Each of the scrubber thread(s) would finish scrubbing + * the entry (probably failing due to disconnection) and either + * putting the entry back into the queue or continuing further. + * Either way, pending entries for this child's queue need not be + * drained; entries just sit there in the queued/ready list to be + * consumed later upon re-connection. + */ + pthread_mutex_lock(&fsscrub->mutex); + { + list_del_init(&child->list); + } + pthread_mutex_unlock(&fsscrub->mutex); + + /** + * 0x1: cleanup scanner thread + * + * The pending timer needs to be removed _after_ cleaning up the + * filesystem scanner (scheduling the next scrub time is not a + * cancellation point). + */ + ret = gf_thread_cleanup_xint(child->thread); + if (ret) + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUB_THREAD_CLEANUP, NULL); + + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_SCRUBBER_CLEANED, + "brick-path=%s", child->brick_path, NULL); + + return 0; } /** @@ -1404,38 +1413,38 @@ br_cleanup_scrubber (xlator_t *this, br_child_t *child) * the inode table, it's just reused taking care of stale inodes) */ int32_t -br_brick_disconnect (xlator_t *this, br_child_t *child) +br_brick_disconnect(xlator_t *this, br_child_t *child) { - int32_t ret = 0; - struct br_monitor *scrub_monitor = NULL; - br_private_t *priv = this->private; + int32_t ret = 0; + struct br_monitor *scrub_monitor = NULL; + br_private_t *priv = this->private; + + scrub_monitor = &priv->scrub_monitor; + + /* Lock order should be wakelock and then child lock to + * dead locks. + */ + pthread_mutex_lock(&scrub_monitor->wakelock); + { + pthread_mutex_lock(&child->lock); + { + if (!_br_is_child_connected(child)) + goto unblock; - scrub_monitor = &priv->scrub_monitor; + /* child is on death row.. */ + _br_set_child_state(child, BR_CHILD_STATE_DISCONNECTED); - /* Lock order should be wakelock and then child lock to - * dead locks. - */ - pthread_mutex_lock (&scrub_monitor->wakelock); - { - pthread_mutex_lock (&child->lock); - { - if (!_br_is_child_connected (child)) - goto unblock; - - /* child is on death row.. */ - _br_set_child_state (child, BR_CHILD_STATE_DISCONNECTED); - - if (priv->iamscrubber) - ret = br_cleanup_scrubber (this, child); - else - ret = br_cleanup_signer (this, child); - } - unblock: - pthread_mutex_unlock (&child->lock); + if (priv->iamscrubber) + ret = br_cleanup_scrubber(this, child); + else + ret = br_cleanup_signer(this, child); } - pthread_mutex_unlock (&scrub_monitor->wakelock); + unblock: + pthread_mutex_unlock(&child->lock); + } + pthread_mutex_unlock(&scrub_monitor->wakelock); - return ret; + return ret; } /** @@ -1444,307 +1453,341 @@ br_brick_disconnect (xlator_t *this, br_child_t *child) * information regarding that brick (such as brick path). */ void * -br_handle_events (void *arg) +br_handle_events(void *arg) { - int32_t ret = 0; - xlator_t *this = NULL; - br_private_t *priv = NULL; - br_child_t *child = NULL; - struct br_child_event *childev = NULL; - - this = arg; - priv = this->private; + int32_t ret = 0; + xlator_t *this = NULL; + br_private_t *priv = NULL; + br_child_t *child = NULL; + struct br_child_event *childev = NULL; + + this = arg; + priv = this->private; + + /* + * Since, this is the topmost xlator, THIS has to be set by bit-rot + * xlator itself (STACK_WIND won't help in this case). Also it has + * to be done for each thread that gets spawned. Otherwise, a new + * thread will get global_xlator's pointer when it does "THIS". + */ + THIS = this; + + while (1) { + pthread_mutex_lock(&priv->lock); + { + while (list_empty(&priv->bricks)) + pthread_cond_wait(&priv->cond, &priv->lock); - /* - * Since, this is the topmost xlator, THIS has to be set by bit-rot - * xlator itself (STACK_WIND wont help in this case). Also it has - * to be done for each thread that gets spawned. Otherwise, a new - * thread will get global_xlator's pointer when it does "THIS". - */ - THIS = this; - - while (1) { - pthread_mutex_lock (&priv->lock); - { - while (list_empty (&priv->bricks)) - pthread_cond_wait (&priv->cond, &priv->lock); - - childev = list_first_entry - (&priv->bricks, struct br_child_event, list); - list_del_init (&childev->list); - } - pthread_mutex_unlock (&priv->lock); - - child = childev->child; - ret = childev->call (this, child); - if (ret) - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_SUBVOL_CONNECT_FAILED, - "callback handler for subvolume [%s] failed", - child->xl->name); - GF_FREE (childev); + childev = list_first_entry(&priv->bricks, struct br_child_event, + list); + list_del_init(&childev->list); } + pthread_mutex_unlock(&priv->lock); - return NULL; + child = childev->child; + ret = childev->call(this, child); + if (ret) + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_SUBVOL_CONNECT_FAILED, + "name=%s", child->xl->name, NULL); + GF_FREE(childev); + } + + return NULL; } int32_t -mem_acct_init (xlator_t *this) +mem_acct_init(xlator_t *this) { - int32_t ret = -1; - - if (!this) - return ret; + int32_t ret = -1; - ret = xlator_mem_acct_init (this, gf_br_stub_mt_end + 1); + if (!this) + return ret; - if (ret != 0) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRB_MSG_MEM_ACNT_FAILED, - "Memory accounting init failed"); - return ret; - } + ret = xlator_mem_acct_init(this, gf_br_stub_mt_end + 1); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRB_MSG_MEM_ACNT_FAILED, NULL); return ret; + } + + return ret; } static void -_br_qchild_event (xlator_t *this, br_child_t *child, br_child_handler *call) +_br_qchild_event(xlator_t *this, br_child_t *child, br_child_handler *call) { - br_private_t *priv = NULL; - struct br_child_event *childev = NULL; + br_private_t *priv = NULL; + struct br_child_event *childev = NULL; - priv = this->private; + priv = this->private; - childev = GF_CALLOC (1, sizeof (*childev), gf_br_mt_br_child_event_t); - if (!childev) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, - "Event unhandled for child.. [Brick: %s]", - child->xl->name); - return; - } + childev = GF_CALLOC(1, sizeof(*childev), gf_br_mt_br_child_event_t); + if (!childev) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_EVENT_UNHANDLED, + "Brick-name=%s", child->xl->name, NULL); + return; + } - INIT_LIST_HEAD (&childev->list); - childev->this = this; - childev->child = child; - childev->call = call; + INIT_LIST_HEAD(&childev->list); + childev->this = this; + childev->child = child; + childev->call = call; - list_add_tail (&childev->list, &priv->bricks); + list_add_tail(&childev->list, &priv->bricks); } int -br_scrubber_status_get (xlator_t *this, dict_t **dict) +br_scrubber_status_get(xlator_t *this, dict_t **dict) { - - int ret = -1; - br_private_t *priv = NULL; - struct br_scrub_stats *scrub_stats = NULL; - - priv = this->private; - - GF_VALIDATE_OR_GOTO ("bit-rot", priv, out); - - scrub_stats = &priv->scrub_stat; - - ret = br_get_bad_objects_list (this, dict); - if (ret) { - gf_msg_debug (this->name, 0, "Failed to collect corrupt " - "files"); - } - - ret = dict_set_int8 (*dict, "scrub-running", - scrub_stats->scrub_running); - if (ret) { - gf_msg_debug (this->name, 0, "Failed setting scrub_running " - "entry to the dictionary"); - } - - ret = dict_set_uint64 (*dict, "scrubbed-files", - scrub_stats->scrubbed_files); - if (ret) { - gf_msg_debug (this->name, 0, "Failed to setting scrubbed file " - "entry to the dictionary"); - } - - ret = dict_set_uint64 (*dict, "unsigned-files", - scrub_stats->unsigned_files); - if (ret) { - gf_msg_debug (this->name, 0, "Failed to set unsigned file count" - " entry to the dictionary"); - } - - ret = dict_set_uint64 (*dict, "scrub-duration", - scrub_stats->scrub_duration); - if (ret) { - gf_msg_debug (this->name, 0, "Failed to set scrub duration" - " entry to the dictionary"); - } - - ret = dict_set_dynstr_with_alloc (*dict, "last-scrub-time", - scrub_stats->last_scrub_time); - if (ret) { - gf_msg_debug (this->name, 0, "Failed to set " - "last scrub time value"); - } + int ret = -1; + br_private_t *priv = NULL; + struct br_scrub_stats *scrub_stats = NULL; + + priv = this->private; + + GF_VALIDATE_OR_GOTO("bit-rot", priv, out); + + scrub_stats = &priv->scrub_stat; + + ret = br_get_bad_objects_list(this, dict); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to collect corrupt " + "files"); + } + + ret = dict_set_int8(*dict, "scrub-running", scrub_stats->scrub_running); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed setting scrub_running " + "entry to the dictionary"); + } + + ret = dict_set_uint64(*dict, "scrubbed-files", scrub_stats->scrubbed_files); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to setting scrubbed file " + "entry to the dictionary"); + } + + ret = dict_set_uint64(*dict, "unsigned-files", scrub_stats->unsigned_files); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set unsigned file count" + " entry to the dictionary"); + } + + ret = dict_set_uint64(*dict, "scrub-duration", scrub_stats->scrub_duration); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set scrub duration" + " entry to the dictionary"); + } + + ret = dict_set_dynstr_with_alloc(*dict, "last-scrub-time", + scrub_stats->last_scrub_time); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "last scrub time value"); + } out: - return ret; + return ret; } int -notify (xlator_t *this, int32_t event, void *data, ...) +notify(xlator_t *this, int32_t event, void *data, ...) { - int idx = -1; - int ret = -1; - xlator_t *subvol = NULL; - br_child_t *child = NULL; - br_private_t *priv = NULL; - dict_t *output = NULL; - va_list ap; + int idx = -1; + int ret = -1; + xlator_t *subvol = NULL; + br_child_t *child = NULL; + br_private_t *priv = NULL; + dict_t *output = NULL; + va_list ap; + struct br_monitor *scrub_monitor = NULL; - subvol = (xlator_t *)data; - priv = this->private; + subvol = (xlator_t *)data; + priv = this->private; + scrub_monitor = &priv->scrub_monitor; - gf_msg_trace (this->name, 0, "Notification received: %d", event); + gf_msg_trace(this->name, 0, "Notification received: %d", event); - idx = br_find_child_index (this, subvol); + idx = br_find_child_index(this, subvol); - switch (event) { + switch (event) { case GF_EVENT_CHILD_UP: - if (idx < 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_INVALID_SUBVOL, "Got event %d from " - "invalid subvolume", event); - goto out; - } - - pthread_mutex_lock (&priv->lock); - { - child = &priv->children[idx]; - if (child->child_up == 1) - goto unblock_0; - priv->up_children++; - - child->child_up = 1; - child->xl = subvol; - if (!child->table) - child->table = inode_table_new (4096, subvol); - - _br_qchild_event (this, child, br_brick_connect); - pthread_cond_signal (&priv->cond); - } + if (idx < 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_INVALID_SUBVOL, + "event=%d", event, NULL); + goto out; + } + + pthread_mutex_lock(&priv->lock); + { + child = &priv->children[idx]; + if (child->child_up == 1) + goto unblock_0; + priv->up_children++; + + child->child_up = 1; + child->xl = subvol; + if (!child->table) + child->table = inode_table_new(4096, subvol); + + _br_qchild_event(this, child, br_brick_connect); + pthread_cond_signal(&priv->cond); + } unblock_0: - pthread_mutex_unlock (&priv->lock); + pthread_mutex_unlock(&priv->lock); - if (priv->up_children == priv->child_count) - default_notify (this, event, data); - break; + if (priv->up_children == priv->child_count) + default_notify(this, event, data); + break; case GF_EVENT_CHILD_DOWN: - if (idx < 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_INVALID_SUBVOL_CHILD, - "Got event %d from invalid subvolume", event); - goto out; - } - - pthread_mutex_lock (&priv->lock); - { - child = &priv->children[idx]; - if (child->child_up == 0) - goto unblock_1; - - child->child_up = 0; - priv->up_children--; - - _br_qchild_event (this, child, br_brick_disconnect); - pthread_cond_signal (&priv->cond); - } + if (idx < 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_INVALID_SUBVOL, + "event=%d", event, NULL); + goto out; + } + + pthread_mutex_lock(&priv->lock); + { + child = &priv->children[idx]; + if (child->child_up == 0) + goto unblock_1; + + child->child_up = 0; + priv->up_children--; + + _br_qchild_event(this, child, br_brick_disconnect); + pthread_cond_signal(&priv->cond); + } unblock_1: - pthread_mutex_unlock (&priv->lock); + pthread_mutex_unlock(&priv->lock); - if (priv->up_children == 0) - default_notify (this, event, data); - break; + if (priv->up_children == 0) + default_notify(this, event, data); + break; case GF_EVENT_SCRUB_STATUS: - gf_msg_debug (this->name, GF_LOG_INFO, "BitRot scrub status " - "called"); - va_start (ap, data); - output = va_arg (ap, dict_t *); - va_end (ap); - - ret = br_scrubber_status_get (this, &output); - gf_msg_debug (this->name, 0, "returning %d", ret); - break; + gf_msg_debug(this->name, GF_LOG_INFO, + "BitRot scrub status " + "called"); + va_start(ap, data); + output = va_arg(ap, dict_t *); + va_end(ap); + + ret = br_scrubber_status_get(this, &output); + gf_msg_debug(this->name, 0, "returning %d", ret); + break; + + case GF_EVENT_SCRUB_ONDEMAND: + gf_log(this->name, GF_LOG_INFO, + "BitRot scrub ondemand " + "called"); + + if (scrub_monitor->state != BR_SCRUB_STATE_PENDING) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRB_MSG_RESCHEDULE_SCRUBBER_FAILED, "Current-state=%d", + scrub_monitor->state, NULL); + return -2; + } + + /* Needs synchronization with reconfigure thread */ + pthread_mutex_lock(&priv->lock); + { + ret = br_scrub_state_machine(this, _gf_true); + } + pthread_mutex_unlock(&priv->lock); + + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRB_MSG_COULD_NOT_SCHEDULE_SCRUB, NULL); + } + gf_msg_debug(this->name, 0, "returning %d", ret); + break; default: - default_notify (this, event, data); - } + default_notify(this, event, data); + } - out: - return 0; +out: + return 0; } -/** - * Initialize signer specific structures, spawn worker threads. - */ - static void -br_fini_signer (xlator_t *this, br_private_t *priv) +br_fini_signer(xlator_t *this, br_private_t *priv) { - int i = 0; + int i = 0; - for (; i < BR_WORKERS; i++) { - (void) gf_thread_cleanup_xint (priv->obj_queue->workers[i]); - } + if (priv == NULL) + return; - pthread_cond_destroy (&priv->object_cond); + for (; i < priv->signer_th_count; i++) { + (void)gf_thread_cleanup_xint(priv->obj_queue->workers[i]); + } + GF_FREE(priv->obj_queue->workers); + + pthread_cond_destroy(&priv->object_cond); } +/** + * Initialize signer specific structures, spawn worker threads. + */ + static int32_t -br_init_signer (xlator_t *this, br_private_t *priv) +br_init_signer(xlator_t *this, br_private_t *priv) { - int i = 0; - int32_t ret = -1; - - /* initialize gfchangelog xlator context */ - ret = gf_changelog_init (this); - if (ret) - goto out; - - pthread_cond_init (&priv->object_cond, NULL); - - priv->obj_queue = GF_CALLOC (1, sizeof (*priv->obj_queue), - gf_br_mt_br_ob_n_wk_t); - if (!priv->obj_queue) - goto cleanup_cond; - INIT_LIST_HEAD (&priv->obj_queue->objects); - - for (i = 0; i < BR_WORKERS; i++) { - ret = gf_thread_create (&priv->obj_queue->workers[i], NULL, - br_process_object, this); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, -ret, - BRB_MSG_SPAWN_FAILED, "thread creation" - " failed"); - ret = -1; - goto cleanup_threads; - } + int i = 0; + int32_t ret = -1; + + /* initialize gfchangelog xlator context */ + ret = gf_changelog_init(this); + if (ret) + goto out; + + pthread_cond_init(&priv->object_cond, NULL); + + priv->obj_queue = GF_CALLOC(1, sizeof(*priv->obj_queue), + gf_br_mt_br_ob_n_wk_t); + if (!priv->obj_queue) + goto cleanup_cond; + INIT_LIST_HEAD(&priv->obj_queue->objects); + + priv->obj_queue->workers = GF_CALLOC( + priv->signer_th_count, sizeof(pthread_t), gf_br_mt_br_worker_t); + if (!priv->obj_queue->workers) + goto cleanup_obj_queue; + + for (i = 0; i < priv->signer_th_count; i++) { + ret = gf_thread_create(&priv->obj_queue->workers[i], NULL, + br_process_object, this, "brpobj"); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ERROR, -ret, + BRB_MSG_THREAD_CREATION_FAILED, NULL); + ret = -1; + goto cleanup_threads; } + } - return 0; + return 0; - cleanup_threads: - for (i--; i >= 0; i--) { - (void) gf_thread_cleanup_xint (priv->obj_queue->workers[i]); - } +cleanup_threads: + for (i--; i >= 0; i--) { + (void)gf_thread_cleanup_xint(priv->obj_queue->workers[i]); + } + GF_FREE(priv->obj_queue->workers); - GF_FREE (priv->obj_queue); +cleanup_obj_queue: + GF_FREE(priv->obj_queue); - cleanup_cond: - /* that's explicit */ - pthread_cond_destroy (&priv->object_cond); - out: - return -1; +cleanup_cond: + /* that's explicit */ + pthread_cond_destroy(&priv->object_cond); +out: + return -1; } /** @@ -1753,339 +1796,358 @@ br_init_signer (xlator_t *this, br_private_t *priv) * throttle. */ static int32_t -br_rate_limit_signer (xlator_t *this, int child_count, int numbricks) +br_rate_limit_signer(xlator_t *this, int child_count, int numbricks) { - br_private_t *priv = NULL; - br_tbf_opspec_t spec = {0,}; - - priv = this->private; - - spec.op = BR_TBF_OP_HASH; - spec.rate = 0; - spec.maxlimit = 0; + br_private_t *priv = NULL; + tbf_opspec_t spec = { + 0, + }; + + priv = this->private; + + spec.op = TBF_OP_HASH; + spec.rate = 0; + spec.maxlimit = 0; + + /** + * OK. Most implementations of TBF I've come across generate tokens + * every second (UML, etc..) and some chose sub-second granularity + * (blk-iothrottle cgroups). TBF algorithm itself does not enforce + * any logic for choosing generation interval and it seems pretty + * logical as one could jack up token count per interval w.r.t. + * generation rate. + * + * Value used here is chosen based on a series of test(s) performed + * to balance object signing time and not maxing out on all available + * CPU cores. It's obvious to have seconds granularity and jack up + * token count per interval, thereby achieving close to similar + * results. Let's stick to this as it seems to be working fine for + * the set of ops that are throttled. + **/ + spec.token_gen_interval = 600000; /* In usec */ #ifdef BR_RATE_LIMIT_SIGNER - double contribution = 0; - contribution = ((double)1 - ((double)child_count / (double)numbricks)); - if (contribution == 0) - contribution = 1; - spec.rate = BR_HASH_CALC_READ_SIZE * contribution; - spec.maxlimit = BR_WORKERS * BR_HASH_CALC_READ_SIZE; + double contribution = 0; + contribution = ((double)1 - ((double)child_count / (double)numbricks)); + if (contribution == 0) + contribution = 1; + spec.rate = BR_HASH_CALC_READ_SIZE * contribution; + spec.maxlimit = priv->signer_th_count * BR_HASH_CALC_READ_SIZE; #endif - if (!spec.rate) - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_RATE_LIMIT_INFO, - "[Rate Limit Info] \"FULL THROTTLE\""); - else - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_RATE_LIMIT_INFO, - "[Rate Limit Info] \"tokens/sec (rate): %lu, " - "maxlimit: %lu\"", spec.rate, spec.maxlimit); + if (!spec.rate) + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_RATE_LIMIT_INFO, + "FULL THROTTLE", NULL); + else + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_RATE_LIMIT_INFO, + "tokens/sec-rate=%lu", spec.rate, "maxlimit=%lu", spec.maxlimit, + NULL); - priv->tbf = br_tbf_init (&spec, 1); - return priv->tbf ? 0 : -1; + priv->tbf = tbf_init(&spec, 1); + return priv->tbf ? 0 : -1; } static int32_t -br_signer_handle_options (xlator_t *this, br_private_t *priv, dict_t *options) +br_signer_handle_options(xlator_t *this, br_private_t *priv, dict_t *options) { - if (options) - GF_OPTION_RECONF ("expiry-time", priv->expiry_time, - options, uint32, error_return); - else - GF_OPTION_INIT ("expiry-time", priv->expiry_time, - uint32, error_return); - - return 0; + if (options) { + GF_OPTION_RECONF("expiry-time", priv->expiry_time, options, uint32, + error_return); + GF_OPTION_RECONF("signer-threads", priv->signer_th_count, options, + uint32, error_return); + } else { + GF_OPTION_INIT("expiry-time", priv->expiry_time, uint32, error_return); + GF_OPTION_INIT("signer-threads", priv->signer_th_count, uint32, + error_return); + } + + return 0; error_return: - return -1; + return -1; } static int32_t -br_signer_init (xlator_t *this, br_private_t *priv) +br_signer_init(xlator_t *this, br_private_t *priv) { - int32_t ret = 0; - int numbricks = 0; + int32_t ret = 0; + int numbricks = 0; - GF_OPTION_INIT ("expiry-time", priv->expiry_time, uint32, error_return); - GF_OPTION_INIT ("brick-count", numbricks, int32, error_return); + GF_OPTION_INIT("expiry-time", priv->expiry_time, uint32, error_return); + GF_OPTION_INIT("brick-count", numbricks, int32, error_return); + GF_OPTION_INIT("signer-threads", priv->signer_th_count, uint32, + error_return); - ret = br_rate_limit_signer (this, priv->child_count, numbricks); - if (ret) - goto error_return; + ret = br_rate_limit_signer(this, priv->child_count, numbricks); + if (ret) + goto error_return; - ret = br_init_signer (this, priv); - if (ret) - goto cleanup_tbf; + ret = br_init_signer(this, priv); + if (ret) + goto cleanup_tbf; - return 0; - - cleanup_tbf: - /* cleanup TBF */ - error_return: - return -1; + return 0; +cleanup_tbf: + /* cleanup TBF */ +error_return: + return -1; } static void -br_free_scrubber_monitor (xlator_t *this, br_private_t *priv) +br_free_scrubber_monitor(xlator_t *this, br_private_t *priv) { - struct br_monitor *scrub_monitor = &priv->scrub_monitor; + struct br_monitor *scrub_monitor = &priv->scrub_monitor; - if (scrub_monitor->timer) { - (void) gf_tw_del_timer (priv->timer_wheel, scrub_monitor->timer); + if (scrub_monitor->timer) { + (void)gf_tw_del_timer(priv->timer_wheel, scrub_monitor->timer); - GF_FREE (scrub_monitor->timer); - scrub_monitor->timer = NULL; - } + GF_FREE(scrub_monitor->timer); + scrub_monitor->timer = NULL; + } - (void) gf_thread_cleanup_xint (scrub_monitor->thread); + (void)gf_thread_cleanup_xint(scrub_monitor->thread); - /* Clean up cond and mutex variables */ - pthread_mutex_destroy (&scrub_monitor->mutex); - pthread_cond_destroy (&scrub_monitor->cond); + /* Clean up cond and mutex variables */ + pthread_mutex_destroy(&scrub_monitor->mutex); + pthread_cond_destroy(&scrub_monitor->cond); - pthread_mutex_destroy (&scrub_monitor->wakelock); - pthread_cond_destroy (&scrub_monitor->wakecond); + pthread_mutex_destroy(&scrub_monitor->wakelock); + pthread_cond_destroy(&scrub_monitor->wakecond); - pthread_mutex_destroy (&scrub_monitor->donelock); - pthread_cond_destroy (&scrub_monitor->donecond); + pthread_mutex_destroy(&scrub_monitor->donelock); + pthread_cond_destroy(&scrub_monitor->donecond); - LOCK_DESTROY (&scrub_monitor->lock); + LOCK_DESTROY(&scrub_monitor->lock); } static void -br_free_children (xlator_t *this, br_private_t *priv, int count) +br_free_children(xlator_t *this, br_private_t *priv, int count) { - br_child_t *child = NULL; + br_child_t *child = NULL; - for (--count; count >= 0; count--) { - child = &priv->children[count]; - mem_pool_destroy (child->timer_pool); - pthread_mutex_destroy (&child->lock); - } + for (--count; count >= 0; count--) { + child = &priv->children[count]; + mem_pool_destroy(child->timer_pool); + pthread_mutex_destroy(&child->lock); + } - GF_FREE (priv->children); - priv->children = NULL; + GF_FREE(priv->children); + priv->children = NULL; } static int -br_init_children (xlator_t *this, br_private_t *priv) +br_init_children(xlator_t *this, br_private_t *priv) { - int i = 0; - br_child_t *child = NULL; - xlator_list_t *trav = NULL; - - priv->child_count = xlator_subvolume_count (this); - priv->children = GF_CALLOC (priv->child_count, sizeof (*priv->children), - gf_br_mt_br_child_t); - if (!priv->children) - goto err; - - trav = this->children; - while (trav) { - child = &priv->children[i]; - - pthread_mutex_init (&child->lock, NULL); - child->witnessed = 0; - - br_set_child_state (child, BR_CHILD_STATE_DISCONNECTED); - - child->this = this; - child->xl = trav->xlator; - - child->timer_pool = mem_pool_new - (struct gf_tw_timer_list, 4096); - if (!child->timer_pool) { - gf_msg (this->name, GF_LOG_ERROR, - ENOMEM, BRB_MSG_NO_MEMORY, - "failed to allocate mem-pool for timer"); - errno = ENOMEM; - goto freechild; - } - - INIT_LIST_HEAD (&child->list); - - i++; - trav = trav->next; + int i = 0; + br_child_t *child = NULL; + xlator_list_t *trav = NULL; + + priv->child_count = xlator_subvolume_count(this); + priv->children = GF_CALLOC(priv->child_count, sizeof(*priv->children), + gf_br_mt_br_child_t); + if (!priv->children) + goto err; + + trav = this->children; + while (trav) { + child = &priv->children[i]; + + pthread_mutex_init(&child->lock, NULL); + child->witnessed = 0; + + br_set_child_state(child, BR_CHILD_STATE_DISCONNECTED); + + child->this = this; + child->xl = trav->xlator; + + child->timer_pool = mem_pool_new(struct gf_tw_timer_list, 4096); + if (!child->timer_pool) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_MEM_POOL_ALLOC, + NULL); + errno = ENOMEM; + goto freechild; } - return 0; + INIT_LIST_HEAD(&child->list); + + i++; + trav = trav->next; + } + + return 0; - freechild: - br_free_children (this, priv, i); - err: - return -1; +freechild: + br_free_children(this, priv, i); +err: + return -1; } int32_t -init (xlator_t *this) +init(xlator_t *this) { - int32_t ret = -1; - br_private_t *priv = NULL; - - if (!this->children) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRB_MSG_NO_CHILD, - "FATAL: no children"); - goto out; - } - - priv = GF_CALLOC (1, sizeof (*priv), gf_br_mt_br_private_t); - if (!priv) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, - "failed to allocate memory (->priv)"); - goto out; - } + int32_t ret = -1; + br_private_t *priv = NULL; - GF_OPTION_INIT ("scrubber", priv->iamscrubber, bool, out); + if (!this->children) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_NO_CHILD, NULL); + goto out; + } - ret = br_init_children (this, priv); - if (ret) - goto free_priv; + priv = GF_CALLOC(1, sizeof(*priv), gf_br_mt_br_private_t); + if (!priv) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRB_MSG_NO_MEMORY, NULL); + goto out; + } - pthread_mutex_init (&priv->lock, NULL); - pthread_cond_init (&priv->cond, NULL); + GF_OPTION_INIT("scrubber", priv->iamscrubber, bool, free_priv); - INIT_LIST_HEAD (&priv->bricks); - INIT_LIST_HEAD (&priv->signing); + ret = br_init_children(this, priv); + if (ret) + goto free_priv; - priv->timer_wheel = glusterfs_global_timer_wheel (this); - if (!priv->timer_wheel) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_TIMER_WHEEL_UNAVAILABLE, - "global timer wheel unavailable"); - goto cleanup; - } + pthread_mutex_init(&priv->lock, NULL); + pthread_cond_init(&priv->cond, NULL); - this->private = priv; + INIT_LIST_HEAD(&priv->bricks); + INIT_LIST_HEAD(&priv->signing); - if (!priv->iamscrubber) { - ret = br_signer_init (this, priv); - if (!ret) - ret = br_signer_handle_options (this, priv, NULL); - } else { - ret = br_scrubber_init (this, priv); - if (!ret) - ret = br_scrubber_handle_options (this, priv, NULL); - } + priv->timer_wheel = glusterfs_ctx_tw_get(this->ctx); + if (!priv->timer_wheel) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_TIMER_WHEEL_UNAVAILABLE, + NULL); + goto cleanup; + } - if (ret) - goto cleanup; + this->private = priv; - ret = gf_thread_create (&priv->thread, NULL, br_handle_events, this); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, -ret, - BRB_MSG_SPAWN_FAILED, "thread creation failed"); - ret = -1; - } + if (!priv->iamscrubber) { + ret = br_signer_init(this, priv); + if (!ret) + ret = br_signer_handle_options(this, priv, NULL); + } else { + ret = br_scrubber_init(this, priv); + if (!ret) + ret = br_scrubber_handle_options(this, priv, NULL); + } - if (!ret) { - gf_msg (this->name, GF_LOG_INFO, 0, BRB_MSG_BITROT_LOADED, - "bit-rot xlator loaded in \"%s\" mode", - (priv->iamscrubber) ? "SCRUBBER" : "SIGNER"); - return 0; - } + if (ret) + goto cleanup; + + ret = gf_thread_create(&priv->thread, NULL, br_handle_events, this, + "brhevent"); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ERROR, -ret, BRB_MSG_THREAD_CREATION_FAILED, + NULL); + ret = -1; + } - cleanup: - (void) pthread_cond_destroy (&priv->cond); - (void) pthread_mutex_destroy (&priv->lock); + if (!ret) { + gf_smsg(this->name, GF_LOG_INFO, 0, BRB_MSG_BITROT_LOADED, "mode=%s", + (priv->iamscrubber) ? "SCRUBBER" : "SIGNER", NULL); + return 0; + } + +cleanup: + (void)pthread_cond_destroy(&priv->cond); + (void)pthread_mutex_destroy(&priv->lock); - br_free_children (this, priv, priv->child_count); + br_free_children(this, priv, priv->child_count); - free_priv: - GF_FREE (priv); - out: - this->private = NULL; - return -1; +free_priv: + GF_FREE(priv); +out: + this->private = NULL; + return -1; } void -fini (xlator_t *this) +fini(xlator_t *this) { - br_private_t *priv = this->private; + br_private_t *priv = this->private; - if (!priv) - return; + if (!priv) + return; - if (!priv->iamscrubber) - br_fini_signer (this, priv); - else - (void) br_free_scrubber_monitor (this, priv); + if (!priv->iamscrubber) + br_fini_signer(this, priv); + else + (void)br_free_scrubber_monitor(this, priv); + + br_free_children(this, priv, priv->child_count); - br_free_children (this, priv, priv->child_count); + this->private = NULL; + GF_FREE(priv); - this->private = NULL; - GF_FREE (priv); + glusterfs_ctx_tw_put(this->ctx); - return; + return; } static void -br_reconfigure_monitor (xlator_t *this) +br_reconfigure_monitor(xlator_t *this) { - int32_t ret = 0; - - ret = br_scrub_state_machine (this); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRB_MSG_RESCHEDULE_SCRUBBER_FAILED, - "Could not reschedule scrubber for the volume. Scrubbing " - "will continue according to old frequency."); - } + int32_t ret = 0; + + ret = br_scrub_state_machine(this, _gf_false); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRB_MSG_COULD_NOT_SCHEDULE_SCRUB, + NULL); + } } static int -br_reconfigure_scrubber (xlator_t *this, dict_t *options) +br_reconfigure_scrubber(xlator_t *this, dict_t *options) { - int32_t ret = -1; - br_private_t *priv = NULL; + int32_t ret = -1; + br_private_t *priv = NULL; - priv = this->private; + priv = this->private; - pthread_mutex_lock (&priv->lock); - { - ret = br_scrubber_handle_options (this, priv, options); - } - pthread_mutex_unlock (&priv->lock); + pthread_mutex_lock(&priv->lock); + { + ret = br_scrubber_handle_options(this, priv, options); + } + pthread_mutex_unlock(&priv->lock); - if (ret) - goto err; + if (ret) + goto err; - /* change state for all _up_ subvolume(s) */ - pthread_mutex_lock (&priv->lock); - { - br_reconfigure_monitor (this); - } - pthread_mutex_unlock (&priv->lock); + /* change state for all _up_ subvolume(s) */ + pthread_mutex_lock(&priv->lock); + { + br_reconfigure_monitor(this); + } + pthread_mutex_unlock(&priv->lock); - err: - return ret; +err: + return ret; } static int -br_reconfigure_signer (xlator_t *this, dict_t *options) +br_reconfigure_signer(xlator_t *this, dict_t *options) { - br_private_t *priv = this->private; + br_private_t *priv = this->private; - return br_signer_handle_options (this, priv, options); + return br_signer_handle_options(this, priv, options); } int -reconfigure (xlator_t *this, dict_t *options) +reconfigure(xlator_t *this, dict_t *options) { - int ret = 0; - br_private_t *priv = NULL; + int ret = 0; + br_private_t *priv = NULL; - priv = this->private; + priv = this->private; - if (priv->iamscrubber) - ret = br_reconfigure_scrubber (this, options); - else - ret = br_reconfigure_signer (this, options); + if (priv->iamscrubber) + ret = br_reconfigure_scrubber(this, options); + else + ret = br_reconfigure_signer(this, options); - return ret; + return ret; } struct xlator_fops fops; @@ -2093,38 +2155,78 @@ struct xlator_fops fops; struct xlator_cbks cbks; struct volume_options options[] = { - { .key = {"expiry-time"}, - .type = GF_OPTION_TYPE_INT, - .default_value = SIGNING_TIMEOUT, - .description = "Waiting time for an object on which it waits " - "before it is signed", - }, - { .key = {"brick-count"}, - .type = GF_OPTION_TYPE_STR, - .description = "Total number of bricks for the current node for " - "all volumes in the trusted storage pool.", - }, - { .key = {"scrubber"}, - .type = GF_OPTION_TYPE_BOOL, - .default_value = "false", - .description = "option to run as a scrubber", - }, - { .key = {"scrub-throttle"}, - .type = GF_OPTION_TYPE_STR, - .description = "Scrub-throttle value is a measure of how fast " - "or slow the scrubber scrubs the filesystem for " - "volume <VOLNAME>", - }, - { .key = {"scrub-freq"}, - .type = GF_OPTION_TYPE_STR, - .default_value = "biweekly", - .description = "Scrub frequency for volume <VOLNAME>", - }, - { .key = {"scrub-state"}, - .type = GF_OPTION_TYPE_STR, - .default_value = "active", - .description = "Pause/Resume scrub. Upon resume, scrubber " - "continues from where it left off.", - }, - { .key = {NULL} }, + { + .key = {"expiry-time"}, + .type = GF_OPTION_TYPE_INT, + .default_value = SIGNING_TIMEOUT, + .op_version = {GD_OP_VERSION_3_7_0}, + .flags = OPT_FLAG_SETTABLE, + .description = "Waiting time for an object on which it waits " + "before it is signed", + }, + { + .key = {"brick-count"}, + .type = GF_OPTION_TYPE_STR, + .description = "Total number of bricks for the current node for " + "all volumes in the trusted storage pool.", + }, + { + .key = {"scrubber", "scrub"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "false", + .op_version = {GD_OP_VERSION_3_7_0}, + .flags = OPT_FLAG_SETTABLE | OPT_FLAG_FORCE, + .description = "option to run as a scrubber", + }, + { + .key = {"scrub-throttle"}, + .type = GF_OPTION_TYPE_STR, + .default_value = "lazy", + .op_version = {GD_OP_VERSION_3_7_0}, + .flags = OPT_FLAG_SETTABLE, + .description = "Scrub-throttle value is a measure of how fast " + "or slow the scrubber scrubs the filesystem for " + "volume <VOLNAME>", + }, + { + .key = {"scrub-freq"}, + .type = GF_OPTION_TYPE_STR, + .default_value = "biweekly", + .op_version = {GD_OP_VERSION_3_7_0}, + .flags = OPT_FLAG_SETTABLE, + .description = "Scrub frequency for volume <VOLNAME>", + }, + { + .key = {"scrub-state"}, + .type = GF_OPTION_TYPE_STR, + .default_value = "active", + .op_version = {GD_OP_VERSION_4_0_0}, + .flags = OPT_FLAG_SETTABLE, + .description = "Pause/Resume scrub. Upon resume, scrubber " + "continues from where it left off.", + }, + { + .key = {"signer-threads"}, + .type = GF_OPTION_TYPE_INT, + .default_value = BR_WORKERS, + .op_version = {GD_OP_VERSION_8_0}, + .flags = OPT_FLAG_SETTABLE, + .description = "Number of signing process threads. As a best " + "practice, set this to the number of processor cores", + }, + {.key = {NULL}}, +}; + +xlator_api_t xlator_api = { + .init = init, + .fini = fini, + .notify = notify, + .reconfigure = reconfigure, + .mem_acct_init = mem_acct_init, + .op_version = {1}, /* Present from the initial version */ + .fops = &fops, + .cbks = &cbks, + .options = options, + .identifier = "bit-rot", + .category = GF_MAINTAINED, }; diff --git a/xlators/features/bit-rot/src/bitd/bit-rot.h b/xlators/features/bit-rot/src/bitd/bit-rot.h index 8e9267048be..8ac7dcdac3d 100644 --- a/xlators/features/bit-rot/src/bitd/bit-rot.h +++ b/xlators/features/bit-rot/src/bitd/bit-rot.h @@ -11,17 +11,17 @@ #ifndef __BIT_ROT_H__ #define __BIT_ROT_H__ -#include "glusterfs.h" -#include "logging.h" -#include "dict.h" -#include "xlator.h" -#include "defaults.h" -#include "syncop.h" -#include "syncop-utils.h" +#include <glusterfs/glusterfs.h> +#include <glusterfs/logging.h> +#include <glusterfs/dict.h> +#include <glusterfs/xlator.h> +#include <glusterfs/defaults.h> +#include <glusterfs/syncop.h> +#include <glusterfs/syncop-utils.h> #include "changelog.h" #include "timer-wheel.h" -#include "bit-rot-tbf.h" +#include <glusterfs/throttle-tbf.h> #include "bit-rot-ssm.h" #include "bit-rot-common.h" @@ -30,278 +30,273 @@ #include <openssl/sha.h> -/** - * TODO: make this configurable. As a best practice, set this to the - * number of processor cores. - */ -#define BR_WORKERS 4 - typedef enum scrub_throttle { - BR_SCRUB_THROTTLE_VOID = -1, - BR_SCRUB_THROTTLE_LAZY = 0, - BR_SCRUB_THROTTLE_NORMAL = 1, - BR_SCRUB_THROTTLE_AGGRESSIVE = 2, - BR_SCRUB_THROTTLE_STALLED = 3, + BR_SCRUB_THROTTLE_VOID = -1, + BR_SCRUB_THROTTLE_LAZY = 0, + BR_SCRUB_THROTTLE_NORMAL = 1, + BR_SCRUB_THROTTLE_AGGRESSIVE = 2, + BR_SCRUB_THROTTLE_STALLED = 3, } scrub_throttle_t; typedef enum scrub_freq { - BR_FSSCRUB_FREQ_HOURLY = 1, - BR_FSSCRUB_FREQ_DAILY, - BR_FSSCRUB_FREQ_WEEKLY, - BR_FSSCRUB_FREQ_BIWEEKLY, - BR_FSSCRUB_FREQ_MONTHLY, - BR_FSSCRUB_FREQ_MINUTE, - BR_FSSCRUB_FREQ_STALLED, + BR_FSSCRUB_FREQ_HOURLY = 1, + BR_FSSCRUB_FREQ_DAILY, + BR_FSSCRUB_FREQ_WEEKLY, + BR_FSSCRUB_FREQ_BIWEEKLY, + BR_FSSCRUB_FREQ_MONTHLY, + BR_FSSCRUB_FREQ_MINUTE, + BR_FSSCRUB_FREQ_STALLED, } scrub_freq_t; -#define signature_size(hl) (sizeof (br_isignature_t) + hl + 1) +#define signature_size(hl) (sizeof(br_isignature_t) + hl + 1) struct br_scanfs { - gf_lock_t entrylock; + gf_lock_t entrylock; - pthread_mutex_t waitlock; - pthread_cond_t waitcond; + pthread_mutex_t waitlock; + pthread_cond_t waitcond; - unsigned int entries; - struct list_head queued; - struct list_head ready; + unsigned int entries; + struct list_head queued; + struct list_head ready; }; /* just need three states to track child status */ typedef enum br_child_state { - BR_CHILD_STATE_CONNECTED = 1, - BR_CHILD_STATE_INITIALIZING, - BR_CHILD_STATE_CONNFAILED, - BR_CHILD_STATE_DISCONNECTED, + BR_CHILD_STATE_CONNECTED = 1, + BR_CHILD_STATE_INITIALIZING, + BR_CHILD_STATE_CONNFAILED, + BR_CHILD_STATE_DISCONNECTED, } br_child_state_t; struct br_child { - pthread_mutex_t lock; /* protects child state */ - char witnessed; /* witnessed at least one succesfull - connection */ - br_child_state_t c_state; /* current state of this child */ + pthread_mutex_t lock; /* protects child state */ + char witnessed; /* witnessed at least one successful + connection */ + br_child_state_t c_state; /* current state of this child */ - char child_up; /* Indicates whether this child is - up or not */ - xlator_t *xl; /* client xlator corresponding to - this child */ - inode_table_t *table; /* inode table for this child */ - char brick_path[PATH_MAX]; /* brick export directory of this - child */ - struct list_head list; /* hook to attach to the list of - UP children */ - xlator_t *this; /* Bit rot xlator */ + char child_up; /* Indicates whether this child is + up or not */ + xlator_t *xl; /* client xlator corresponding to + this child */ + inode_table_t *table; /* inode table for this child */ + char brick_path[PATH_MAX]; /* brick export directory of this + child */ + struct list_head list; /* hook to attach to the list of + UP children */ + xlator_t *this; /* Bit rot xlator */ - pthread_t thread; /* initial crawler for unsigned - object(s) or scrub crawler */ - int threadrunning; /* active thread */ + pthread_t thread; /* initial crawler for unsigned + object(s) or scrub crawler */ + int threadrunning; /* active thread */ - struct mem_pool *timer_pool; /* timer-wheel's timer mem-pool */ + struct mem_pool *timer_pool; /* timer-wheel's timer mem-pool */ - struct timeval tv; + struct timeval tv; - struct br_scanfs fsscan; /* per subvolume FS scanner */ + struct br_scanfs fsscan; /* per subvolume FS scanner */ - gf_boolean_t active_scrubbing; /* Actively scrubbing or not */ + gf_boolean_t active_scrubbing; /* Actively scrubbing or not */ }; typedef struct br_child br_child_t; struct br_obj_n_workers { - struct list_head objects; /* queue of objects expired from the - timer wheel and ready to be picked - up for signing */ - pthread_t workers[BR_WORKERS]; /* Threads which pick up the objects - from the above queue and start - signing each object */ + struct list_head objects; /* queue of objects expired from the + timer wheel and ready to be picked + up for signing */ + pthread_t *workers; /* Threads which pick up the objects + from the above queue and start + signing each object */ }; struct br_scrubber { - xlator_t *this; + xlator_t *this; - scrub_throttle_t throttle; + scrub_throttle_t throttle; - /** - * frequency of scanning for this subvolume. this should - * normally be per-child, but since all childs follow the - * same frequency for a volume, this option ends up here - * instead of br_child_t. - */ - scrub_freq_t frequency; + /** + * frequency of scanning for this subvolume. this should + * normally be per-child, but since all children follow the + * same frequency for a volume, this option ends up here + * instead of br_child_t. + */ + scrub_freq_t frequency; - gf_boolean_t frequency_reconf; - gf_boolean_t throttle_reconf; + gf_boolean_t frequency_reconf; + gf_boolean_t throttle_reconf; - pthread_mutex_t mutex; - pthread_cond_t cond; + pthread_mutex_t mutex; + pthread_cond_t cond; - unsigned int nr_scrubbers; - struct list_head scrubbers; + unsigned int nr_scrubbers; + struct list_head scrubbers; - /** - * list of "rotatable" subvolume(s) undergoing scrubbing - */ - struct list_head scrublist; + /** + * list of "rotatable" subvolume(s) undergoing scrubbing + */ + struct list_head scrublist; }; struct br_monitor { - gf_lock_t lock; - pthread_t thread; /* Monitor thread */ - - gf_boolean_t inited; - pthread_mutex_t mutex; - pthread_cond_t cond; /* Thread starts and will be waiting on cond. - First child which is up wakes this up */ - - xlator_t *this; - /* scheduler */ - uint32_t boot; - - int32_t active_child_count; /* Number of children currently scrubbing */ - gf_boolean_t kick; /* This variable tracks the scrubber is - * kicked or not. Both 'kick' and - * 'active_child_count' uses the same pair - * of mutex-cond variable, i.e, wakelock and - * wakecond. */ - - pthread_mutex_t wakelock; - pthread_cond_t wakecond; - - gf_boolean_t done; - pthread_mutex_t donelock; - pthread_cond_t donecond; - - struct gf_tw_timer_list *timer; - br_scrub_state_t state; /* current scrub state */ + gf_lock_t lock; + pthread_t thread; /* Monitor thread */ + + gf_boolean_t inited; + pthread_mutex_t mutex; + pthread_cond_t cond; /* Thread starts and will be waiting on cond. + First child which is up wakes this up */ + + xlator_t *this; + /* scheduler */ + uint32_t boot; + + int32_t active_child_count; /* Number of children currently scrubbing */ + gf_boolean_t kick; /* This variable tracks the scrubber is + * kicked or not. Both 'kick' and + * 'active_child_count' uses the same pair + * of mutex-cond variable, i.e, wakelock and + * wakecond. */ + + pthread_mutex_t wakelock; + pthread_cond_t wakecond; + + gf_boolean_t done; + pthread_mutex_t donelock; + pthread_cond_t donecond; + + struct gf_tw_timer_list *timer; + br_scrub_state_t state; /* current scrub state */ }; typedef struct br_obj_n_workers br_obj_n_workers_t; typedef struct br_private br_private_t; -typedef void (*br_scrubbed_file_update) (br_private_t *priv); +typedef void (*br_scrubbed_file_update)(br_private_t *priv); struct br_private { - pthread_mutex_t lock; + pthread_mutex_t lock; + + struct list_head bricks; /* list of bricks from which enents + have been received */ - struct list_head bricks; /* list of bricks from which enents - have been received */ + struct list_head signing; - struct list_head signing; + pthread_cond_t object_cond; /* handling signing of objects */ + int child_count; + br_child_t *children; /* list of subvolumes */ + int up_children; - pthread_cond_t object_cond; /* handling signing of objects */ - int child_count; - br_child_t *children; /* list of subvolumes */ - int up_children; + pthread_cond_t cond; /* handling CHILD_UP notifications */ + pthread_t thread; /* thread for connecting each UP + child with changelog */ - pthread_cond_t cond; /* handling CHILD_UP notifications */ - pthread_t thread; /* thread for connecting each UP - child with changelog */ + struct tvec_base *timer_wheel; /* timer wheel where the objects which + changelog has sent sits and waits + for expiry */ + br_obj_n_workers_t *obj_queue; /* place holder for all the objects + that are expired from timer wheel + and ready to be picked up for + signing and the workers which sign + the objects */ - struct tvec_base *timer_wheel; /* timer wheel where the objects which - changelog has sent sits and waits - for expiry */ - br_obj_n_workers_t *obj_queue; /* place holder for all the objects - that are expired from timer wheel - and ready to be picked up for - signing and the workers which sign - the objects */ + uint32_t expiry_time; /* objects "wait" time */ - uint32_t expiry_time; /* objects "wait" time */ + uint32_t signer_th_count; /* Number of signing process threads */ - br_tbf_t *tbf; /* token bucket filter */ + tbf_t *tbf; /* token bucket filter */ - gf_boolean_t iamscrubber; /* function as a fs scrubber */ + gf_boolean_t iamscrubber; /* function as a fs scrubber */ - struct br_scrub_stats scrub_stat; /* statistics of scrub*/ + struct br_scrub_stats scrub_stat; /* statistics of scrub*/ - struct br_scrubber fsscrub; /* scrubbers for this subvolume */ + struct br_scrubber fsscrub; /* scrubbers for this subvolume */ - struct br_monitor scrub_monitor; /* scrubber monitor */ + struct br_monitor scrub_monitor; /* scrubber monitor */ }; struct br_object { - xlator_t *this; + xlator_t *this; - uuid_t gfid; + uuid_t gfid; - unsigned long signedversion; /* version aginst which this object will - be signed */ - br_child_t *child; /* object's subvolume */ + unsigned long signedversion; /* version against which this object will + be signed */ + br_child_t *child; /* object's subvolume */ - int sign_info; + int sign_info; - struct list_head list; /* hook to add to the queue once the - object is expired from timer wheel */ - void *data; + struct list_head list; /* hook to add to the queue once the + object is expired from timer wheel */ + void *data; }; typedef struct br_object br_object_t; -typedef int32_t (br_scrub_ssm_call) (xlator_t *); +typedef int32_t(br_scrub_ssm_call)(xlator_t *); void -br_log_object (xlator_t *, char *, uuid_t, int32_t); +br_log_object(xlator_t *, char *, uuid_t, int32_t); void -br_log_object_path (xlator_t *, char *, const char *, int32_t); +br_log_object_path(xlator_t *, char *, const char *, int32_t); int32_t -br_calculate_obj_checksum (unsigned char *, - br_child_t *, fd_t *, struct iatt *); +br_calculate_obj_checksum(unsigned char *, br_child_t *, fd_t *, struct iatt *); int32_t -br_prepare_loc (xlator_t *, br_child_t *, loc_t *, gf_dirent_t *, loc_t *); +br_prepare_loc(xlator_t *, br_child_t *, loc_t *, gf_dirent_t *, loc_t *); gf_boolean_t -bitd_is_bad_file (xlator_t *, br_child_t *, loc_t *, fd_t *); +bitd_is_bad_file(xlator_t *, br_child_t *, loc_t *, fd_t *); static inline void -_br_set_child_state (br_child_t *child, br_child_state_t state) +_br_set_child_state(br_child_t *child, br_child_state_t state) { - child->c_state = state; + child->c_state = state; } static inline int -_br_is_child_connected (br_child_t *child) +_br_is_child_connected(br_child_t *child) { - return (child->c_state == BR_CHILD_STATE_CONNECTED); + return (child->c_state == BR_CHILD_STATE_CONNECTED); } static inline int -_br_is_child_scrub_active (br_child_t *child) +_br_is_child_scrub_active(br_child_t *child) { - return child->active_scrubbing; + return child->active_scrubbing; } static inline int -_br_child_failed_conn (br_child_t *child) +_br_child_failed_conn(br_child_t *child) { - return (child->c_state == BR_CHILD_STATE_CONNFAILED); + return (child->c_state == BR_CHILD_STATE_CONNFAILED); } static inline int -_br_child_witnessed_connection (br_child_t *child) +_br_child_witnessed_connection(br_child_t *child) { - return (child->witnessed == 1); + return (child->witnessed == 1); } /* scrub state */ static inline void -_br_monitor_set_scrub_state (struct br_monitor *scrub_monitor, - br_scrub_state_t state) +_br_monitor_set_scrub_state(struct br_monitor *scrub_monitor, + br_scrub_state_t state) { - scrub_monitor->state = state; + scrub_monitor->state = state; } static inline br_scrub_event_t -_br_child_get_scrub_event (struct br_scrubber *fsscrub) +_br_child_get_scrub_event(struct br_scrubber *fsscrub) { - return (fsscrub->frequency == BR_FSSCRUB_FREQ_STALLED) - ? BR_SCRUB_EVENT_PAUSE : BR_SCRUB_EVENT_SCHEDULE; + return (fsscrub->frequency == BR_FSSCRUB_FREQ_STALLED) + ? BR_SCRUB_EVENT_PAUSE + : BR_SCRUB_EVENT_SCHEDULE; } int32_t -br_get_bad_objects_list (xlator_t *this, dict_t **dict); - +br_get_bad_objects_list(xlator_t *this, dict_t **dict); #endif /* __BIT_ROT_H__ */ diff --git a/xlators/features/bit-rot/src/stub/Makefile.am b/xlators/features/bit-rot/src/stub/Makefile.am index 7e4b6837eec..f13de7145fc 100644 --- a/xlators/features/bit-rot/src/stub/Makefile.am +++ b/xlators/features/bit-rot/src/stub/Makefile.am @@ -1,4 +1,6 @@ +if WITH_SERVER xlator_LTLIBRARIES = bitrot-stub.la +endif xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features bitrot_stub_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS) @@ -7,10 +9,11 @@ bitrot_stub_la_SOURCES = bit-rot-stub-helpers.c bit-rot-stub.c bitrot_stub_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la noinst_HEADERS = bit-rot-stub.h bit-rot-common.h bit-rot-stub-mem-types.h \ - bit-rot-object-version.h bit-rot-stub-messages.h + bit-rot-object-version.h bit-rot-stub-messages.h AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \ - -I$(top_srcdir)/rpc/xdr/src -I$(top_srcdir)/rpc/rpc-lib/src + -I$(top_srcdir)/rpc/xdr/src -I$(top_builddir)/rpc/xdr/src \ + -I$(top_srcdir)/rpc/rpc-lib/src AM_CFLAGS = -Wall $(GF_CFLAGS) diff --git a/xlators/features/bit-rot/src/stub/bit-rot-common.h b/xlators/features/bit-rot/src/stub/bit-rot-common.h index 2afc9f47c29..20561aa7764 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-common.h +++ b/xlators/features/bit-rot/src/stub/bit-rot-common.h @@ -11,74 +11,74 @@ #ifndef __BIT_ROT_COMMON_H__ #define __BIT_ROT_COMMON_H__ -#include "glusterfs.h" +#include <glusterfs/glusterfs.h> #include "bit-rot-object-version.h" -#define BR_VXATTR_VERSION (1 << 0) +#define BR_VXATTR_VERSION (1 << 0) #define BR_VXATTR_SIGNATURE (1 << 1) #define BR_VXATTR_SIGN_MISSING (BR_VXATTR_SIGNATURE) -#define BR_VXATTR_ALL_MISSING \ - (BR_VXATTR_VERSION | BR_VXATTR_SIGNATURE) +#define BR_VXATTR_ALL_MISSING (BR_VXATTR_VERSION | BR_VXATTR_SIGNATURE) -#define BR_BAD_OBJ_CONTAINER (uuid_t){0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8} +#define BR_BAD_OBJ_CONTAINER \ + (uuid_t) { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8 } typedef enum br_vxattr_state { - BR_VXATTR_STATUS_FULL = 0, - BR_VXATTR_STATUS_MISSING = 1, - BR_VXATTR_STATUS_UNSIGNED = 2, - BR_VXATTR_STATUS_INVALID = 3, + BR_VXATTR_STATUS_FULL = 0, + BR_VXATTR_STATUS_MISSING = 1, + BR_VXATTR_STATUS_UNSIGNED = 2, + BR_VXATTR_STATUS_INVALID = 3, } br_vxattr_status_t; typedef enum br_sign_state { - BR_SIGN_INVALID = -1, - BR_SIGN_NORMAL = 0, - BR_SIGN_REOPEN_WAIT = 1, - BR_SIGN_QUICK = 2, + BR_SIGN_INVALID = -1, + BR_SIGN_NORMAL = 0, + BR_SIGN_REOPEN_WAIT = 1, + BR_SIGN_QUICK = 2, } br_sign_state_t; static inline br_vxattr_status_t -br_version_xattr_state (dict_t *xattr, br_version_t **obuf, - br_signature_t **sbuf, gf_boolean_t *objbad) +br_version_xattr_state(dict_t *xattr, br_version_t **obuf, + br_signature_t **sbuf, gf_boolean_t *objbad) { - int32_t ret = 0; - int32_t vxattr = 0; - br_vxattr_status_t status; - void *data = NULL; - - /** - * The key being present in the dict indicates the xattr was set on - * disk. The presence of xattr itself as of now is suffecient to say - * the the object is bad. - */ - *objbad = _gf_false; - ret = dict_get_bin (xattr, BITROT_OBJECT_BAD_KEY, (void **)&data); - if (!ret) - *objbad = _gf_true; - - ret = dict_get_bin (xattr, BITROT_CURRENT_VERSION_KEY, (void **)obuf); - if (ret) - vxattr |= BR_VXATTR_VERSION; - - ret = dict_get_bin (xattr, BITROT_SIGNING_VERSION_KEY, (void **)sbuf); - if (ret) - vxattr |= BR_VXATTR_SIGNATURE; - - switch (vxattr) { + int32_t ret = 0; + int32_t vxattr = 0; + br_vxattr_status_t status; + void *data = NULL; + + /** + * The key being present in the dict indicates the xattr was set on + * disk. The presence of xattr itself as of now is suffecient to say + * the the object is bad. + */ + *objbad = _gf_false; + ret = dict_get_bin(xattr, BITROT_OBJECT_BAD_KEY, (void **)&data); + if (!ret) + *objbad = _gf_true; + + ret = dict_get_bin(xattr, BITROT_CURRENT_VERSION_KEY, (void **)obuf); + if (ret) + vxattr |= BR_VXATTR_VERSION; + + ret = dict_get_bin(xattr, BITROT_SIGNING_VERSION_KEY, (void **)sbuf); + if (ret) + vxattr |= BR_VXATTR_SIGNATURE; + + switch (vxattr) { case 0: - status = BR_VXATTR_STATUS_FULL; - break; + status = BR_VXATTR_STATUS_FULL; + break; case BR_VXATTR_SIGN_MISSING: - status = BR_VXATTR_STATUS_UNSIGNED; - break; + status = BR_VXATTR_STATUS_UNSIGNED; + break; case BR_VXATTR_ALL_MISSING: - status = BR_VXATTR_STATUS_MISSING; - break; + status = BR_VXATTR_STATUS_MISSING; + break; default: - status = BR_VXATTR_STATUS_INVALID; - } + status = BR_VXATTR_STATUS_INVALID; + } - return status; + return status; } /** @@ -86,13 +86,13 @@ br_version_xattr_state (dict_t *xattr, br_version_t **obuf, * signing. */ typedef struct br_isignature_in { - int8_t signaturetype; /* signature type */ + int8_t signaturetype; /* signature type */ - unsigned long signedversion; /* version against which the - object was signed */ + unsigned long signedversion; /* version against which the + object was signed */ - size_t signaturelen; /* signature length */ - char signature[0]; /* object signature */ + size_t signaturelen; /* signature length */ + char signature[0]; /* object signature */ } br_isignature_t; /** @@ -100,80 +100,79 @@ typedef struct br_isignature_in { * verification. */ typedef struct br_isignature_out { - char stale; /* stale signature? */ + char stale; /* stale signature? */ - unsigned long version; /* current signed version */ + unsigned long version; /* current signed version */ - uint32_t time[2]; /* time when the object - got dirtied */ + uint32_t time[2]; /* time when the object + got dirtied */ - int8_t signaturetype; /* hash type */ - size_t signaturelen; /* signature length */ - char signature[0]; /* signature (hash) */ + int8_t signaturetype; /* hash type */ + size_t signaturelen; /* signature length */ + char signature[0]; /* signature (hash) */ } br_isignature_out_t; typedef struct br_stub_init { - uint32_t timebuf[2]; - char export[PATH_MAX]; + uint32_t timebuf[2]; + char export[PATH_MAX]; } br_stub_init_t; typedef enum { - BR_SIGNATURE_TYPE_VOID = -1, /* object is not signed */ - BR_SIGNATURE_TYPE_ZERO = 0, /* min boundary */ - BR_SIGNATURE_TYPE_SHA256 = 1, /* signed with SHA256 */ - BR_SIGNATURE_TYPE_MAX = 2, /* max boundary */ + BR_SIGNATURE_TYPE_VOID = -1, /* object is not signed */ + BR_SIGNATURE_TYPE_ZERO = 0, /* min boundary */ + BR_SIGNATURE_TYPE_SHA256 = 1, /* signed with SHA256 */ + BR_SIGNATURE_TYPE_MAX = 2, /* max boundary */ } br_signature_type; /* BitRot stub start time (virtual xattr) */ -#define GLUSTERFS_GET_BR_STUB_INIT_TIME "trusted.glusterfs.bit-rot.stub-init" +#define GLUSTERFS_GET_BR_STUB_INIT_TIME "trusted.glusterfs.bit-rot.stub-init" /* signing/reopen hint */ #define BR_OBJECT_RESIGN 0 -#define BR_OBJECT_REOPEN 1 -#define BR_REOPEN_SIGN_HINT_KEY "trusted.glusterfs.bit-rot.reopen-hint" +#define BR_OBJECT_REOPEN 1 +#define BR_REOPEN_SIGN_HINT_KEY "trusted.glusterfs.bit-rot.reopen-hint" static inline int -br_is_signature_type_valid (int8_t signaturetype) +br_is_signature_type_valid(int8_t signaturetype) { - return ((signaturetype > BR_SIGNATURE_TYPE_ZERO) - && (signaturetype < BR_SIGNATURE_TYPE_MAX)); + return ((signaturetype > BR_SIGNATURE_TYPE_ZERO) && + (signaturetype < BR_SIGNATURE_TYPE_MAX)); } static inline void -br_set_default_ongoingversion (br_version_t *buf, uint32_t *tv) +br_set_default_ongoingversion(br_version_t *buf, uint32_t *tv) { - buf->ongoingversion = BITROT_DEFAULT_CURRENT_VERSION; - buf->timebuf[0] = tv[0]; - buf->timebuf[1] = tv[1]; + buf->ongoingversion = BITROT_DEFAULT_CURRENT_VERSION; + buf->timebuf[0] = tv[0]; + buf->timebuf[1] = tv[1]; } static inline void -br_set_default_signature (br_signature_t *buf, size_t *size) +br_set_default_signature(br_signature_t *buf, size_t *size) { - buf->signaturetype = (int8_t) BR_SIGNATURE_TYPE_VOID; - buf->signedversion = BITROT_DEFAULT_SIGNING_VERSION; + buf->signaturetype = (int8_t)BR_SIGNATURE_TYPE_VOID; + buf->signedversion = BITROT_DEFAULT_SIGNING_VERSION; - *size = sizeof (br_signature_t); /* no signature */ + *size = sizeof(br_signature_t); /* no signature */ } static inline void -br_set_ongoingversion (br_version_t *buf, - unsigned long version, uint32_t *tv) +br_set_ongoingversion(br_version_t *buf, unsigned long version, uint32_t *tv) { - buf->ongoingversion = version; - buf->timebuf[0] = tv[0]; - buf->timebuf[1] = tv[1]; + buf->ongoingversion = version; + buf->timebuf[0] = tv[0]; + buf->timebuf[1] = tv[1]; } static inline void -br_set_signature (br_signature_t *buf, - br_isignature_t *sign, size_t signaturelen, size_t *size) +br_set_signature(br_signature_t *buf, br_isignature_t *sign, + size_t signaturelen, size_t *size) { - buf->signaturetype = sign->signaturetype; - buf->signedversion = ntohl (sign->signedversion); + buf->signaturetype = sign->signaturetype; + buf->signedversion = ntohl(sign->signedversion); - memcpy (buf->signature, sign->signature, signaturelen); - *size = sizeof (br_signature_t) + signaturelen; + memcpy(buf->signature, sign->signature, signaturelen); + *size = sizeof(br_signature_t) + signaturelen; } #endif /* __BIT_ROT_COMMON_H__ */ diff --git a/xlators/features/bit-rot/src/stub/bit-rot-object-version.h b/xlators/features/bit-rot/src/stub/bit-rot-object-version.h index 1f2497aebe9..7ae6a5200df 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-object-version.h +++ b/xlators/features/bit-rot/src/stub/bit-rot-object-version.h @@ -15,16 +15,16 @@ * on-disk formats for ongoing version and object signature. */ typedef struct br_version { - unsigned long ongoingversion; - uint32_t timebuf[2]; + unsigned long ongoingversion; + uint32_t timebuf[2]; } br_version_t; -typedef struct __attribute__ ((__packed__)) br_signature { - int8_t signaturetype; +typedef struct __attribute__((__packed__)) br_signature { + int8_t signaturetype; - unsigned long signedversion; + unsigned long signedversion; - char signature[0]; + char signature[0]; } br_signature_t; #endif diff --git a/xlators/features/bit-rot/src/stub/bit-rot-stub-helpers.c b/xlators/features/bit-rot/src/stub/bit-rot-stub-helpers.c index 7bd270d1513..8ac13a09941 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-stub-helpers.c +++ b/xlators/features/bit-rot/src/stub/bit-rot-stub-helpers.c @@ -11,140 +11,88 @@ #include "bit-rot-stub.h" br_stub_fd_t * -br_stub_fd_new (void) +br_stub_fd_new(void) { - br_stub_fd_t *br_stub_fd = NULL; + br_stub_fd_t *br_stub_fd = NULL; - br_stub_fd = GF_CALLOC (1, sizeof (*br_stub_fd), - gf_br_stub_mt_br_stub_fd_t); + br_stub_fd = GF_CALLOC(1, sizeof(*br_stub_fd), gf_br_stub_mt_br_stub_fd_t); - return br_stub_fd; + return br_stub_fd; } int -__br_stub_fd_ctx_set (xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd) +__br_stub_fd_ctx_set(xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd) { - uint64_t value = 0; - int ret = -1; + uint64_t value = 0; + int ret = -1; - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); - GF_VALIDATE_OR_GOTO (this->name, br_stub_fd, out); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); + GF_VALIDATE_OR_GOTO(this->name, br_stub_fd, out); - value = (uint64_t)(long) br_stub_fd; + value = (uint64_t)(long)br_stub_fd; - ret = __fd_ctx_set (fd, this, value); + ret = __fd_ctx_set(fd, this, value); out: - return ret; + return ret; } br_stub_fd_t * -__br_stub_fd_ctx_get (xlator_t *this, fd_t *fd) +__br_stub_fd_ctx_get(xlator_t *this, fd_t *fd) { - br_stub_fd_t *br_stub_fd = NULL; - uint64_t value = 0; - int ret = -1; + br_stub_fd_t *br_stub_fd = NULL; + uint64_t value = 0; + int ret = -1; - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); - ret = __fd_ctx_get (fd, this, &value); - if (ret) - return NULL; + ret = __fd_ctx_get(fd, this, &value); + if (ret) + return NULL; - br_stub_fd = (br_stub_fd_t *) ((long) value); + br_stub_fd = (br_stub_fd_t *)((long)value); out: - return br_stub_fd; + return br_stub_fd; } br_stub_fd_t * -br_stub_fd_ctx_get (xlator_t *this, fd_t *fd) +br_stub_fd_ctx_get(xlator_t *this, fd_t *fd) { - br_stub_fd_t *br_stub_fd = NULL; + br_stub_fd_t *br_stub_fd = NULL; - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); - LOCK (&fd->lock); - { - br_stub_fd = __br_stub_fd_ctx_get (this, fd); - } - UNLOCK (&fd->lock); + LOCK(&fd->lock); + { + br_stub_fd = __br_stub_fd_ctx_get(this, fd); + } + UNLOCK(&fd->lock); out: - return br_stub_fd; + return br_stub_fd; } int32_t -br_stub_fd_ctx_set (xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd) +br_stub_fd_ctx_set(xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd) { - int32_t ret = -1; + int32_t ret = -1; - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, out); - GF_VALIDATE_OR_GOTO (this->name, fd, out); - GF_VALIDATE_OR_GOTO (this->name, br_stub_fd, out); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, fd, out); + GF_VALIDATE_OR_GOTO(this->name, br_stub_fd, out); - LOCK (&fd->lock); - { - ret = __br_stub_fd_ctx_set (this, fd, br_stub_fd); - } - UNLOCK (&fd->lock); + LOCK(&fd->lock); + { + ret = __br_stub_fd_ctx_set(this, fd, br_stub_fd); + } + UNLOCK(&fd->lock); out: - return ret; -} - - -/** - * prints the path to the bad object's entry into the buffer provided. - * @priv: xlator private - * @filename: gfid of the bad object. - * @file_path: buffer provided into which path of the bad object is printed - * using above 2 arguments. - */ -static void -br_stub_link_path (br_stub_private_t *priv, const char *filename, - char *file_path, size_t len) -{ - snprintf (file_path, len, "%s/%s", priv->stub_basepath, filename); -} - -/** - * Prints the path of the object which acts as a container for all the bad - * objects. Each new entry corresponding to a bad object is a hard link to - * the object with name "stub-0000000000000008". - * @priv: xlator's private - * @stub_gfid_path: buffer into which the path to the container of bad objects - * is printed. - */ -static void -br_stub_container_entry (br_stub_private_t *priv, char *stub_gfid_path, - size_t len) -{ - - snprintf (stub_gfid_path, len, "%s/stub-%s", priv->stub_basepath, - uuid_utoa (priv->bad_object_dir_gfid)); -} - -/** - * Prints the path to the bad object's entry into the buffer provided. - * @priv: xlator private - * @gfid: gfid of the bad object. - * @gfid_path: buffer provided into which path of the bad object is printed - * using above 2 arguments. - * This function is same as br_stub_link_path. But in this function the - * gfid of the bad object is obtained as an argument (i.e. uuid_t gfid), - * where as in br_stub_link_path, the gfid is received as filename - * (i.e. char *filename) - */ -static void -br_stub_linked_entry (br_stub_private_t *priv, char *gfid_path, uuid_t gfid, - size_t len) -{ - snprintf (gfid_path, len, "%s/%s", priv->stub_basepath, - uuid_utoa (gfid)); + return ret; } /** @@ -152,103 +100,112 @@ br_stub_linked_entry (br_stub_private_t *priv, char *gfid_path, uuid_t gfid, * @gfid: gfid of the bad object being added to the bad objects directory */ int -br_stub_add (xlator_t *this, uuid_t gfid) +br_stub_add(xlator_t *this, uuid_t gfid) { - char gfid_path[PATH_MAX] = {0}; - char bad_gfid_path[PATH_MAX] = {0}; - int ret = 0; - uuid_t index = {0}; - br_stub_private_t *priv = NULL; - struct stat st = {0}; - int fd = 0; - - priv = this->private; - GF_ASSERT_AND_GOTO_WITH_ERROR (this->name, !gf_uuid_is_null (gfid), - out, errno, EINVAL); - - br_stub_linked_entry (priv, gfid_path, gfid, sizeof (gfid_path)); - - ret = sys_stat (gfid_path, &st); - if (!ret) - goto out; - br_stub_container_entry (priv, bad_gfid_path, sizeof (bad_gfid_path)); - - ret = sys_link (bad_gfid_path, gfid_path); - if (ret) { - if ((errno != ENOENT) && (errno != EMLINK) && (errno != EEXIST)) - goto out; - - /* - * Continue with success. At least we'll have half of the - * functionality, in the sense, object is marked bad and - * would be inaccessible. It's only scrub status that would - * show up less number of objects. That's fine as we'll have - * the log files that will have the missing information. - */ - gf_msg (this->name, GF_LOG_WARNING, errno, BRS_MSG_LINK_FAIL, - "failed to record gfid [%s]", uuid_utoa (gfid)); - } - - return 0; + char gfid_path[BR_PATH_MAX_PLUS] = {0}; + char bad_gfid_path[BR_PATH_MAX_PLUS] = {0}; + int ret = 0; + br_stub_private_t *priv = NULL; + struct stat st = {0}; + + priv = this->private; + GF_ASSERT_AND_GOTO_WITH_ERROR(this->name, !gf_uuid_is_null(gfid), out, + errno, EINVAL); + + snprintf(gfid_path, sizeof(gfid_path), "%s/%s", priv->stub_basepath, + uuid_utoa(gfid)); + + ret = sys_stat(gfid_path, &st); + if (!ret) + goto out; + snprintf(bad_gfid_path, sizeof(bad_gfid_path), "%s/stub-%s", + priv->stub_basepath, uuid_utoa(priv->bad_object_dir_gfid)); + + ret = sys_link(bad_gfid_path, gfid_path); + if (ret) { + if ((errno != ENOENT) && (errno != EMLINK) && (errno != EEXIST)) + goto out; + + /* + * Continue with success. At least we'll have half of the + * functionality, in the sense, object is marked bad and + * would be inaccessible. It's only scrub status that would + * show up less number of objects. That's fine as we'll have + * the log files that will have the missing information. + */ + gf_smsg(this->name, GF_LOG_WARNING, errno, BRS_MSG_LINK_FAIL, "gfid=%s", + uuid_utoa(gfid), NULL); + } + + return 0; out: - return -1; + return -1; } int -br_stub_del (xlator_t *this, uuid_t gfid) +br_stub_del(xlator_t *this, uuid_t gfid) { - int32_t op_errno __attribute__((unused)) = 0; - br_stub_private_t *priv = NULL; - int ret = 0; - char gfid_path[PATH_MAX] = {0}; - - priv = this->private; - GF_ASSERT_AND_GOTO_WITH_ERROR (this->name, !gf_uuid_is_null (gfid), - out, op_errno, EINVAL); - br_stub_linked_entry (priv, gfid_path, gfid, - sizeof (gfid_path)); - ret = sys_unlink (gfid_path); - if (ret && (errno != ENOENT)) { - gf_msg (this->name, GF_LOG_ERROR, errno, - BRS_MSG_BAD_OBJ_UNLINK_FAIL, - "%s: failed to delete bad object link from quarantine " - "directory", gfid_path); - ret = -errno; - goto out; - } - - ret = 0; + int32_t op_errno __attribute__((unused)) = 0; + br_stub_private_t *priv = NULL; + int ret = 0; + char gfid_path[BR_PATH_MAX_PLUS] = {0}; + + priv = this->private; + GF_ASSERT_AND_GOTO_WITH_ERROR(this->name, !gf_uuid_is_null(gfid), out, + op_errno, EINVAL); + snprintf(gfid_path, sizeof(gfid_path), "%s/%s", priv->stub_basepath, + uuid_utoa(gfid)); + ret = sys_unlink(gfid_path); + if (ret && (errno != ENOENT)) { + gf_smsg(this->name, GF_LOG_ERROR, errno, BRS_MSG_BAD_OBJ_UNLINK_FAIL, + "path=%s", gfid_path, NULL); + ret = -errno; + goto out; + } + + ret = 0; out: - return ret; + return ret; } static int -br_stub_check_stub_directory (xlator_t *this, char *fullpath) +br_stub_check_stub_directory(xlator_t *this, char *fullpath) { - int ret = 0; - struct stat st = {0,}; - - ret = sys_stat (fullpath, &st); - if (!ret && !S_ISDIR (st.st_mode)) - goto error_return; - if (ret) { - if (errno != ENOENT) - goto error_return; - ret = mkdir_p (fullpath, 0600, _gf_true); - } - + int ret = 0; + struct stat st = { + 0, + }; + char oldpath[BR_PATH_MAX_PLUS] = {0}; + br_stub_private_t *priv = NULL; + + priv = this->private; + + snprintf(oldpath, sizeof(oldpath), "%s/%s", priv->export, + OLD_BR_STUB_QUARANTINE_DIR); + + ret = sys_stat(fullpath, &st); + if (!ret && !S_ISDIR(st.st_mode)) + goto error_return; + if (ret) { + if (errno != ENOENT) + goto error_return; + ret = sys_stat(oldpath, &st); if (ret) - gf_msg (this->name, GF_LOG_ERROR, errno, - BRS_MSG_BAD_OBJECT_DIR_FAIL, - "failed to create stub directory [%s]", fullpath); - return ret; + ret = mkdir_p(fullpath, 0600, _gf_true); + else + ret = sys_rename(oldpath, fullpath); + } + + if (ret) + gf_smsg(this->name, GF_LOG_ERROR, errno, BRS_MSG_BAD_OBJECT_DIR_FAIL, + "create-path=%s", fullpath, NULL); + return ret; error_return: - gf_msg (this->name, GF_LOG_ERROR, errno, - BRS_MSG_BAD_OBJECT_DIR_FAIL, - "Failed to verify stub directory [%s]", fullpath); - return -1; + gf_smsg(this->name, GF_LOG_ERROR, errno, BRS_MSG_BAD_OBJECT_DIR_FAIL, + "verify-path=%s", fullpath, NULL); + return -1; } /** @@ -256,380 +213,584 @@ error_return: * directory. */ static int -br_stub_check_stub_file (xlator_t *this, char *path) +br_stub_check_stub_file(xlator_t *this, char *path) { - int ret = 0; - int fd = -1; - struct stat st = {0,}; - - ret = sys_stat (path, &st); - if (!ret && !S_ISREG (st.st_mode)) - goto error_return; - if (ret) { - if (errno != ENOENT) - goto error_return; - fd = sys_creat (path, 0); - if (fd < 0) - gf_msg (this->name, GF_LOG_ERROR, errno, - BRS_MSG_BAD_OBJECT_DIR_FAIL, - "Failed ot create stub file [%s]", path); - } - - if (fd >= 0) { - sys_close (fd); - ret = 0; - } + int ret = 0; + int fd = -1; + struct stat st = { + 0, + }; + + ret = sys_stat(path, &st); + if (!ret && !S_ISREG(st.st_mode)) + goto error_return; + if (ret) { + if (errno != ENOENT) + goto error_return; + fd = sys_creat(path, 0); + if (fd < 0) + gf_smsg(this->name, GF_LOG_ERROR, errno, + BRS_MSG_BAD_OBJECT_DIR_FAIL, "create-path=%s", path, NULL); + } + + if (fd >= 0) { + sys_close(fd); + ret = 0; + } - return ret; + return ret; error_return: - gf_msg (this->name, GF_LOG_ERROR, errno, - BRS_MSG_BAD_OBJECT_DIR_FAIL, "Failed ot verify stub file [%s]", path); - return -1; + gf_smsg(this->name, GF_LOG_ERROR, errno, BRS_MSG_BAD_OBJECT_DIR_FAIL, + "verify-path=%s", path, NULL); + return -1; } int -br_stub_dir_create (xlator_t *this, br_stub_private_t *priv) +br_stub_dir_create(xlator_t *this, br_stub_private_t *priv) { - int ret = -1; - char fullpath[PATH_MAX] = {0}; - char stub_gfid_path[PATH_MAX] = {0, }; - char path[PATH_MAX] = {0}; - size_t len = 0; - - gf_uuid_copy (priv->bad_object_dir_gfid, BR_BAD_OBJ_CONTAINER); - - snprintf (fullpath, sizeof (fullpath), "%s", priv->stub_basepath); - - br_stub_container_entry (priv, stub_gfid_path, sizeof (stub_gfid_path)); - - ret = br_stub_check_stub_directory (this, fullpath); - if (ret) - goto out; - ret = br_stub_check_stub_file (this, stub_gfid_path); - if (ret) - goto out; - - return 0; + int ret = -1; + char fullpath[BR_PATH_MAX_PLUS] = { + 0, + }; + char stub_gfid_path[BR_PATH_MAX_PLUS] = { + 0, + }; + + gf_uuid_copy(priv->bad_object_dir_gfid, BR_BAD_OBJ_CONTAINER); + + if (snprintf(fullpath, sizeof(fullpath), "%s", priv->stub_basepath) >= + sizeof(fullpath)) + goto out; + + if (snprintf(stub_gfid_path, sizeof(stub_gfid_path), "%s/stub-%s", + priv->stub_basepath, uuid_utoa(priv->bad_object_dir_gfid)) >= + sizeof(stub_gfid_path)) + goto out; + + ret = br_stub_check_stub_directory(this, fullpath); + if (ret) + goto out; + ret = br_stub_check_stub_file(this, stub_gfid_path); + if (ret) + goto out; + + return 0; out: - return -1; + return -1; } call_stub_t * -__br_stub_dequeue (struct list_head *callstubs) +__br_stub_dequeue(struct list_head *callstubs) { - call_stub_t *stub = NULL; + call_stub_t *stub = NULL; - if (!list_empty (callstubs)) { - stub = list_entry (callstubs->next, call_stub_t, list); - list_del_init (&stub->list); - } + if (!list_empty(callstubs)) { + stub = list_entry(callstubs->next, call_stub_t, list); + list_del_init(&stub->list); + } - return stub; + return stub; } void -__br_stub_enqueue (struct list_head *callstubs, call_stub_t *stub) +__br_stub_enqueue(struct list_head *callstubs, call_stub_t *stub) { - list_add_tail (&stub->list, callstubs); + list_add_tail(&stub->list, callstubs); } void -br_stub_worker_enqueue (xlator_t *this, call_stub_t *stub) +br_stub_worker_enqueue(xlator_t *this, call_stub_t *stub) { - br_stub_private_t *priv = NULL; - - priv = this->private; - pthread_mutex_lock (&priv->container.bad_lock); - { - __br_stub_enqueue (&priv->container.bad_queue, stub); - pthread_cond_signal (&priv->container.bad_cond); - } - pthread_mutex_unlock (&priv->container.bad_lock); + br_stub_private_t *priv = NULL; + + priv = this->private; + pthread_mutex_lock(&priv->container.bad_lock); + { + __br_stub_enqueue(&priv->container.bad_queue, stub); + pthread_cond_signal(&priv->container.bad_cond); + } + pthread_mutex_unlock(&priv->container.bad_lock); } void * -br_stub_worker (void *data) +br_stub_worker(void *data) { - br_stub_private_t *priv = NULL; - xlator_t *this = NULL; - call_stub_t *stub = NULL; - int ret = 0; - - - THIS = data; - this = data; - priv = this->private; - - for (;;) { - pthread_mutex_lock (&priv->container.bad_lock); - { - while (list_empty (&priv->container.bad_queue)) { - ret = pthread_cond_wait (&priv->container.bad_cond, - &priv->container.bad_lock); - } - - stub = __br_stub_dequeue (&priv->container.bad_queue); - } - pthread_mutex_unlock (&priv->container.bad_lock); - - if (stub) /* guard against spurious wakeups */ - call_resume (stub); + br_stub_private_t *priv = NULL; + xlator_t *this = NULL; + call_stub_t *stub = NULL; + + THIS = data; + this = data; + priv = this->private; + + for (;;) { + pthread_mutex_lock(&priv->container.bad_lock); + { + while (list_empty(&priv->container.bad_queue)) { + (void)pthread_cond_wait(&priv->container.bad_cond, + &priv->container.bad_lock); + } + + stub = __br_stub_dequeue(&priv->container.bad_queue); } + pthread_mutex_unlock(&priv->container.bad_lock); - return NULL; + if (stub) /* guard against spurious wakeups */ + call_resume(stub); + } + + return NULL; } int32_t -br_stub_lookup_wrapper (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *xattr_req) +br_stub_lookup_wrapper(call_frame_t *frame, xlator_t *this, loc_t *loc, + dict_t *xattr_req) { - br_stub_private_t *priv = NULL; - struct stat lstatbuf = {0}; - int ret = 0; - int32_t op_errno = EINVAL; - int32_t op_ret = -1; - struct iatt stbuf = {0, }; - struct iatt postparent = {0,}; - dict_t *xattr = NULL; - - priv = this->private; - - VALIDATE_OR_GOTO (loc, done); - if (gf_uuid_compare (loc->gfid, priv->bad_object_dir_gfid)) - goto done; - - ret = sys_lstat (priv->stub_basepath, &lstatbuf); - if (ret) { - gf_msg_debug (this->name, errno, "Stat failed on stub bad " - "object dir"); - op_errno = errno; - goto done; - } else if (!S_ISDIR (lstatbuf.st_mode)) { - gf_msg_debug (this->name, errno, "bad object container is not " - "a directory"); - op_errno = ENOTDIR; - goto done; - } - - iatt_from_stat (&stbuf, &lstatbuf); - gf_uuid_copy (stbuf.ia_gfid, priv->bad_object_dir_gfid); - - op_ret = op_errno = 0; - xattr = dict_new (); - if (!xattr) { - op_ret = -1; - op_errno = ENOMEM; - } + br_stub_private_t *priv = NULL; + struct stat lstatbuf = {0}; + int ret = 0; + int32_t op_errno = EINVAL; + int32_t op_ret = -1; + struct iatt stbuf = { + 0, + }; + struct iatt postparent = { + 0, + }; + dict_t *xattr = NULL; + gf_boolean_t ver_enabled = _gf_false; + + BR_STUB_VER_ENABLED_IN_CALLPATH(frame, ver_enabled); + priv = this->private; + BR_STUB_VER_COND_GOTO(priv, (!ver_enabled), done); + + VALIDATE_OR_GOTO(loc, done); + if (gf_uuid_compare(loc->gfid, priv->bad_object_dir_gfid)) + goto done; + + ret = sys_lstat(priv->stub_basepath, &lstatbuf); + if (ret) { + gf_msg_debug(this->name, errno, + "Stat failed on stub bad " + "object dir"); + op_errno = errno; + goto done; + } else if (!S_ISDIR(lstatbuf.st_mode)) { + gf_msg_debug(this->name, errno, + "bad object container is not " + "a directory"); + op_errno = ENOTDIR; + goto done; + } + + iatt_from_stat(&stbuf, &lstatbuf); + gf_uuid_copy(stbuf.ia_gfid, priv->bad_object_dir_gfid); + + op_ret = op_errno = 0; + xattr = dict_new(); + if (!xattr) { + op_ret = -1; + op_errno = ENOMEM; + } done: - STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, - loc->inode, &stbuf, xattr, &postparent); - if (xattr) - dict_unref (xattr); - return 0; + STACK_UNWIND_STRICT(lookup, frame, op_ret, op_errno, loc->inode, &stbuf, + xattr, &postparent); + if (xattr) + dict_unref(xattr); + return 0; } static int -is_bad_gfid_file_current (char *filename, uuid_t gfid) +is_bad_gfid_file_current(char *filename, uuid_t gfid) { - char current_stub_gfid[GF_UUID_BUF_SIZE + 16] = {0, }; + char current_stub_gfid[GF_UUID_BUF_SIZE + 16] = { + 0, + }; - snprintf (current_stub_gfid, sizeof current_stub_gfid, - "stub-%s", uuid_utoa(gfid)); - return (!strcmp(filename, current_stub_gfid)); + snprintf(current_stub_gfid, sizeof current_stub_gfid, "stub-%s", + uuid_utoa(gfid)); + return (!strcmp(filename, current_stub_gfid)); } static void -check_delete_stale_bad_file (xlator_t *this, char *filename) +check_delete_stale_bad_file(xlator_t *this, char *filename) { - int ret = 0; - struct stat st = {0}; - char filepath[PATH_MAX] = {0}; - br_stub_private_t *priv = NULL; + int ret = 0; + struct stat st = {0}; + char filepath[BR_PATH_MAX_PLUS] = {0}; + br_stub_private_t *priv = NULL; - priv = this->private; + priv = this->private; - if (is_bad_gfid_file_current (filename, priv->bad_object_dir_gfid)) - return; + if (is_bad_gfid_file_current(filename, priv->bad_object_dir_gfid)) + return; - br_stub_link_path (priv, filename, filepath, sizeof (filepath)); + snprintf(filepath, sizeof(filepath), "%s/%s", priv->stub_basepath, + filename); - ret = sys_stat (filepath, &st); - if (!ret && st.st_nlink == 1) - sys_unlink (filepath); + ret = sys_stat(filepath, &st); + if (!ret && st.st_nlink == 1) + sys_unlink(filepath); } static int -br_stub_fill_readdir (fd_t *fd, br_stub_fd_t *fctx, DIR *dir, off_t off, - size_t size, gf_dirent_t *entries) +br_stub_fill_readdir(fd_t *fd, br_stub_fd_t *fctx, DIR *dir, off_t off, + size_t size, gf_dirent_t *entries) { - off_t in_case = -1; - off_t last_off = 0; - size_t filled = 0; - int count = 0; - char entrybuf[sizeof(struct dirent) + 256 + 8]; - struct dirent *entry = NULL; - int32_t this_size = -1; - gf_dirent_t *this_entry = NULL; - xlator_t *this = NULL; - - this = THIS; - if (!off) { - rewinddir (dir); - } else { - seekdir (dir, off); + off_t in_case = -1; + off_t last_off = 0; + size_t filled = 0; + int count = 0; + int32_t this_size = -1; + gf_dirent_t *this_entry = NULL; + xlator_t *this = NULL; + struct dirent *entry = NULL; + struct dirent scratch[2] = { + { + 0, + }, + }; + + this = THIS; + if (!off) { + rewinddir(dir); + } else { + seekdir(dir, off); #ifndef GF_LINUX_HOST_OS - if ((u_long)telldir(dir) != off && - off != fctx->bad_object.dir_eof) { - gf_msg (THIS->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL, - "seekdir(0x%llx) failed on dir=%p: " - "Invalid argument (offset reused from " - "another DIR * structure?)", off, dir); - errno = EINVAL; - count = -1; - goto out; - } + if ((u_long)telldir(dir) != off && off != fctx->bad_object.dir_eof) { + gf_smsg(THIS->name, GF_LOG_ERROR, 0, + BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL, "off=(0x%llx)", off, + "dir=%p", dir, NULL); + errno = EINVAL; + count = -1; + goto out; + } #endif /* GF_LINUX_HOST_OS */ + } + + while (filled <= size) { + in_case = (u_long)telldir(dir); + + if (in_case == -1) { + gf_smsg(THIS->name, GF_LOG_ERROR, 0, + BRS_MSG_BAD_OBJECT_DIR_TELL_FAIL, "dir=%p", dir, "err=%s", + strerror(errno), NULL); + goto out; } - while (filled <= size) { - in_case = (u_long)telldir (dir); - - if (in_case == -1) { - gf_msg (THIS->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJECT_DIR_TELL_FAIL, - "telldir failed on dir=%p: %s", - dir, strerror (errno)); - goto out; - } - - errno = 0; - entry = NULL; - readdir_r (dir, (struct dirent *)entrybuf, &entry); - - if (!entry) { - if (errno == EBADF) { - gf_msg (THIS->name, GF_LOG_WARNING, 0, - BRS_MSG_BAD_OBJECT_DIR_READ_FAIL, - "readdir failed on dir=%p: %s", - dir, strerror (errno)); - goto out; - } - break; - } - - if (!strcmp (entry->d_name, ".") || - !strcmp (entry->d_name, "..")) - continue; - - if (!strncmp (entry->d_name, "stub-", - strlen ("stub-"))) { - check_delete_stale_bad_file (this, entry->d_name); - continue; - } - - this_size = max (sizeof (gf_dirent_t), - sizeof (gfs3_dirplist)) - + strlen (entry->d_name) + 1; - - if (this_size + filled > size) { - seekdir (dir, in_case); + errno = 0; + entry = sys_readdir(dir, scratch); + if (!entry || errno != 0) { + if (errno == EBADF) { + gf_smsg(THIS->name, GF_LOG_WARNING, 0, + BRS_MSG_BAD_OBJECT_DIR_READ_FAIL, "dir=%p", dir, + "err=%s", strerror(errno), NULL); + goto out; + } + break; + } + + if (!strcmp(entry->d_name, ".") || !strcmp(entry->d_name, "..")) + continue; + + if (!strncmp(entry->d_name, "stub-", strlen("stub-"))) { + check_delete_stale_bad_file(this, entry->d_name); + continue; + } + + this_size = max(sizeof(gf_dirent_t), sizeof(gfs3_dirplist)) + + strlen(entry->d_name) + 1; + + if (this_size + filled > size) { + seekdir(dir, in_case); #ifndef GF_LINUX_HOST_OS - if ((u_long)telldir(dir) != in_case && - in_case != fctx->bad_object.dir_eof) { - gf_msg (THIS->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL, - "seekdir(0x%llx) failed on dir=%p: " - "Invalid argument (offset reused from " - "another DIR * structure?)", - in_case, dir); - errno = EINVAL; - count = -1; - goto out; - } + if ((u_long)telldir(dir) != in_case && + in_case != fctx->bad_object.dir_eof) { + gf_smsg(THIS->name, GF_LOG_ERROR, 0, + BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL, "in_case=(0x%llx)", + in_case, "dir=%p", dir, NULL); + errno = EINVAL; + count = -1; + goto out; + } #endif /* GF_LINUX_HOST_OS */ - break; - } - - this_entry = gf_dirent_for_name (entry->d_name); - - if (!this_entry) { - gf_msg (THIS->name, GF_LOG_ERROR, 0, - BRS_MSG_NO_MEMORY, - "could not create gf_dirent for entry %s: (%s)", - entry->d_name, strerror (errno)); - goto out; - } - /* - * we store the offset of next entry here, which is - * probably not intended, but code using syncop_readdir() - * (glfs-heal.c, afr-self-heald.c, pump.c) rely on it - * for directory read resumption. - */ - last_off = (u_long)telldir(dir); - this_entry->d_off = last_off; - this_entry->d_ino = entry->d_ino; - - list_add_tail (&this_entry->list, &entries->list); - - filled += this_size; - count++; + break; } - if ((!sys_readdir (dir) && (errno == 0))) { - /* Indicate EOF */ - errno = ENOENT; - /* Remember EOF offset for later detection */ - fctx->bad_object.dir_eof = last_off; + this_entry = gf_dirent_for_name(entry->d_name); + + if (!this_entry) { + gf_smsg(THIS->name, GF_LOG_ERROR, 0, + BRS_MSG_CREATE_GF_DIRENT_FAILED, "entry-name=%s", + entry->d_name, "err=%s", strerror(errno), NULL); + goto out; } + /* + * we store the offset of next entry here, which is + * probably not intended, but code using syncop_readdir() + * (glfs-heal.c, afr-self-heald.c, pump.c) rely on it + * for directory read resumption. + */ + last_off = (u_long)telldir(dir); + this_entry->d_off = last_off; + this_entry->d_ino = entry->d_ino; + + list_add_tail(&this_entry->list, &entries->list); + + filled += this_size; + count++; + } + + if ((!sys_readdir(dir, scratch) && (errno == 0))) { + /* Indicate EOF */ + errno = ENOENT; + /* Remember EOF offset for later detection */ + fctx->bad_object.dir_eof = last_off; + } out: - return count; + return count; } int32_t -br_stub_readdir_wrapper (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, dict_t *xdata) +br_stub_readdir_wrapper(call_frame_t *frame, xlator_t *this, fd_t *fd, + size_t size, off_t off, dict_t *xdata) { - br_stub_fd_t *fctx = NULL; - DIR *dir = NULL; - int ret = -1; - int32_t op_ret = -1; - int32_t op_errno = 0; - int count = 0; - gf_dirent_t entries; - - INIT_LIST_HEAD (&entries.list); - - fctx = br_stub_fd_ctx_get (this, fd); - if (!fctx) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_GET_FD_CONTEXT_FAILED, - "pfd is NULL, fd=%p", fd); - op_errno = -ret; - goto done; - } + br_stub_fd_t *fctx = NULL; + DIR *dir = NULL; + int ret = -1; + int32_t op_ret = -1; + int32_t op_errno = 0; + int count = 0; + gf_dirent_t entries; + gf_boolean_t xdata_unref = _gf_false; + dict_t *dict = NULL; + + INIT_LIST_HEAD(&entries.list); + + fctx = br_stub_fd_ctx_get(this, fd); + if (!fctx) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_GET_FD_CONTEXT_FAILED, + "fd=%p", fd, NULL); + op_errno = -ret; + goto done; + } + + dir = fctx->bad_object.dir; + + if (!dir) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_BAD_HANDLE_DIR_NULL, + "fd=%p", fd, NULL); + op_errno = EINVAL; + goto done; + } + + count = br_stub_fill_readdir(fd, fctx, dir, off, size, &entries); + + /* pick ENOENT to indicate EOF */ + op_errno = errno; + op_ret = count; + + dict = xdata; + (void)br_stub_bad_objects_path(this, fd, &entries, &dict); + if (!xdata && dict) { + xdata = dict; + xdata_unref = _gf_true; + } - dir = fctx->bad_object.dir; +done: + STACK_UNWIND_STRICT(readdir, frame, op_ret, op_errno, &entries, xdata); + gf_dirent_free(&entries); + if (xdata_unref) + dict_unref(xdata); + return 0; +} + +/** + * This function is called to mainly obtain the paths of the corrupt + * objects (files as of now). Currently scrub status prints only the + * gfid of the corrupted files. Reason is, bitrot-stub maintains the + * list of the corrupted objects as entries inside the quarantine + * directory (<brick export>/.glusterfs/quarantine) + * + * And the name of each entry in the qurantine directory is the gfid + * of the corrupted object. So scrub status will just show that info. + * But it helps the users a lot if the actual path to the object is + * also reported. Hence the below function to get that information. + * The function allocates a new dict to be returned (if it does not + * get one from the caller of readdir i.e. scrubber as of now), and + * stores the paths of each corrupted gfid there. The gfid is used as + * the key and path is used as the value. + * + * NOTE: The path will be there in following situations + * 1) gfid2path option has been enabled (posix xlator option) + * and the corrupted file contains the path as an extended + * attribute. + * 2) If the gfid2path option is not enabled, OR if the xattr + * is absent, then the inode table should have it. + * The path will be there if a name based lookup has happened + * on the file which has been corrupted. With lookup a inode and + * dentry would be created in the inode table. And the path is + * constructed using the in memory inode and dentry. If a lookup + * has not happened OR the inode corresponding to the corrupted + * file does not exist in the inode table (because it got purged + * as lru limit of the inodes exceeded) OR a nameless lookup had + * happened to populate the inode in the inode table, then the + * path will not be printed in scrub and only the gfid will be there. + **/ +int +br_stub_bad_objects_path(xlator_t *this, fd_t *fd, gf_dirent_t *entries, + dict_t **dict) +{ + gf_dirent_t *entry = NULL; + inode_t *inode = NULL; + char *hpath = NULL; + uuid_t gfid = {0}; + int ret = -1; + dict_t *tmp_dict = NULL; + char str_gfid[64] = {0}; + + if (list_empty(&entries->list)) + return 0; - if (!dir) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_BAD_HANDLE_DIR_NULL, - "dir is NULL for fd=%p", fd); - op_errno = EINVAL; - goto done; + tmp_dict = *dict; + + if (!tmp_dict) { + tmp_dict = dict_new(); + /* + * If the allocation of dict fails then no need treat it + * it as a error. This path (or function) is executed when + * "gluster volume bitrot <volume name> scrub status" is + * executed, to get the list of the corrupted objects. + * And the motive of this function is to get the paths of + * the corrupted objects. If the dict allocation fails, then + * the scrub status will only show the gfids of those corrupted + * objects (which is the behavior as of the time of this patch + * being worked upon). So just return and only the gfids will + * be shown. + */ + if (!tmp_dict) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ALLOC_FAILED, NULL); + goto out; } + } - count = br_stub_fill_readdir (fd, fctx, dir, off, size, &entries); + list_for_each_entry(entry, &entries->list, list) + { + gf_uuid_clear(gfid); + gf_uuid_parse(entry->d_name, gfid); - /* pick ENOENT to indicate EOF */ - op_errno = errno; - op_ret = count; -done: - STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries, xdata); - gf_dirent_free (&entries); - return 0; + inode = inode_find(fd->inode->table, gfid); + + /* No need to check the return value here. + * Because @hpath is examined. + */ + (void)br_stub_get_path_of_gfid(this, fd->inode, inode, gfid, &hpath); + + if (hpath) { + gf_msg_debug(this->name, 0, + "path of the corrupted " + "object (gfid: %s) is %s", + uuid_utoa(gfid), hpath); + br_stub_entry_xattr_fill(this, hpath, entry, tmp_dict); + } else + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_PATH_GET_FAILED, + "gfid=%s", uuid_utoa_r(gfid, str_gfid), NULL); + + inode = NULL; + hpath = NULL; + } + + ret = 0; + *dict = tmp_dict; + +out: + return ret; } +int +br_stub_get_path_of_gfid(xlator_t *this, inode_t *parent, inode_t *inode, + uuid_t gfid, char **path) +{ + int32_t ret = -1; + char gfid_str[64] = {0}; + + GF_VALIDATE_OR_GOTO("bitrot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, parent, out); + GF_VALIDATE_OR_GOTO(this->name, path, out); + + /* Above, No need to validate the @inode for hard resolution. Because + * inode can be NULL and if it is NULL, then syncop_gfid_to_path_hard + * will allocate a new inode and proceed. So no need to bother about + * @inode. Because we need it only to send a syncop_getxattr call + * from inside syncop_gfid_to_path_hard. And getxattr fetches the + * path from the backend. + */ + + ret = syncop_gfid_to_path_hard(parent->table, FIRST_CHILD(this), gfid, + inode, path, _gf_true); + if (ret < 0) + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_PATH_GET_FAILED, + "gfid=%s", uuid_utoa_r(gfid, gfid_str), NULL); + + /* + * Try with soft resolution of path if hard resolve fails. Because + * checking the xattr on disk to get the path of a inode (or gfid) + * is dependent on whether that option is enabled in the posix + * xlator or not. If it is not enabled, then hard resolution by + * checking the on disk xattr fails. + * + * Thus in such situations fall back to the soft resolution which + * mainly depends on the inode_path() function. And for using + * inode_path, @inode has to be linked i.e. a successful lookup should + * have happened on the gfid (or the path) to link the inode to the + * inode table. And if @inode is NULL, means, the inode has not been + * found in the inode table and better not to do inode_path() on the + * inode which has not been linked. + */ + if (ret < 0 && inode) { + ret = syncop_gfid_to_path_hard(parent->table, FIRST_CHILD(this), gfid, + inode, path, _gf_false); + if (ret < 0) + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_PATH_GET_FAILED, + "from-memory gfid=%s", uuid_utoa_r(gfid, gfid_str), NULL); + } + +out: + return ret; +} + +/** + * NOTE: If the file has multiple hardlinks (in gluster volume + * namespace), the path would be one of the hardlinks. Its up to + * the user to find the remaining hardlinks (using find -samefile) + * and remove them. + **/ +void +br_stub_entry_xattr_fill(xlator_t *this, char *hpath, gf_dirent_t *entry, + dict_t *dict) +{ + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, hpath, out); + + /* + * Use the entry->d_name (which is nothing but the gfid of the + * corrupted object) as the key. And the value will be the actual + * path of that object (or file). + * + * ALso ignore the dict_set errors. scrubber will get the gfid of + * the corrupted object for sure. So, for now lets just log the + * dict_set_dynstr failure and move on. + */ + + ret = dict_set_dynstr(dict, entry->d_name, hpath); + if (ret) + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_DICT_SET_FAILED, + "path=%s", hpath, "object-name=%s", entry->d_name, NULL); +out: + return; +} diff --git a/xlators/features/bit-rot/src/stub/bit-rot-stub-mem-types.h b/xlators/features/bit-rot/src/stub/bit-rot-stub-mem-types.h index f70fafbca49..9d93caf069f 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-stub-mem-types.h +++ b/xlators/features/bit-rot/src/stub/bit-rot-stub-mem-types.h @@ -11,28 +11,26 @@ #ifndef _BR_MEM_TYPES_H #define _BR_MEM_TYPES_H -#include "mem-types.h" +#include <glusterfs/mem-types.h> enum br_mem_types { - gf_br_stub_mt_private_t = gf_common_mt_end + 1, - gf_br_stub_mt_version_t, - gf_br_stub_mt_inode_ctx_t, - gf_br_stub_mt_signature_t, - gf_br_mt_br_private_t, - gf_br_mt_br_child_t, - gf_br_mt_br_object_t, - gf_br_mt_br_ob_n_wk_t, - gf_br_mt_br_tbf_t, - gf_br_mt_br_tbf_bucket_t, - gf_br_mt_br_tbf_throttle_t, - gf_br_mt_br_tbf_opspec_t, - gf_br_mt_br_scrubber_t, - gf_br_mt_br_fsscan_entry_t, - gf_br_stub_mt_br_stub_fd_t, - gf_br_stub_mt_br_scanner_freq_t, - gf_br_stub_mt_sigstub_t, - gf_br_mt_br_child_event_t, - gf_br_stub_mt_end, + gf_br_stub_mt_private_t = gf_common_mt_end + 1, + gf_br_stub_mt_version_t, + gf_br_stub_mt_inode_ctx_t, + gf_br_stub_mt_signature_t, + gf_br_mt_br_private_t, + gf_br_mt_br_child_t, + gf_br_mt_br_object_t, + gf_br_mt_br_ob_n_wk_t, + gf_br_mt_br_scrubber_t, + gf_br_mt_br_fsscan_entry_t, + gf_br_stub_mt_br_stub_fd_t, + gf_br_stub_mt_br_scanner_freq_t, + gf_br_stub_mt_sigstub_t, + gf_br_mt_br_child_event_t, + gf_br_stub_mt_misc, + gf_br_mt_br_worker_t, + gf_br_stub_mt_end, }; #endif diff --git a/xlators/features/bit-rot/src/stub/bit-rot-stub-messages.h b/xlators/features/bit-rot/src/stub/bit-rot-stub-messages.h index c0fcfd324a5..6c15a166f18 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-stub-messages.h +++ b/xlators/features/bit-rot/src/stub/bit-rot-stub-messages.h @@ -11,261 +11,107 @@ #ifndef _BITROT_STUB_MESSAGES_H_ #define _BITROT_STUB_MESSAGES_H_ -#include "glfs-message-id.h" +#include <glusterfs/glfs-message-id.h> -/* file bit-rot-stub-messages.h - * brief BIT-ROT log-message IDs and their descriptions - */ - -/* NOTE: Rules for message additions - * 1) Each instance of a message is _better_ left with a unique message ID, even - * if the message format is the same. Reasoning is that, if the message - * format needs to change in one instance, the other instances are not - * impacted or the new change does not change the ID of the instance being - * modified. - * 2) Addition of a message, - * - Should increment the GLFS_NUM_MESSAGES - * - Append to the list of messages defined, towards the end - * - Retain macro naming as glfs_msg_X (for redability across developers) - * NOTE: Rules for message format modifications - * 3) Check acorss the code if the message ID macro in question is reused - * anywhere. If reused then then the modifications should ensure correctness - * everywhere, or needs a new message ID as (1) above was not adhered to. If - * not used anywhere, proceed with the required modification. - * NOTE: Rules for message deletion - * 4) Check (3) and if used anywhere else, then cannot be deleted. If not used - * anywhere, then can be deleted, but will leave a hole by design, as - * addition rules specify modification to the end of the list and not filling - * holes. - */ - -#define GLFS_BITROT_STUB_BASE GLFS_MSGID_COMP_BITROT_STUB -#define GLFS_BITROT_STUB_NUM_MESSAGES 31 -#define GLFS_MSGID_END (GLFS_BITROT_STUB_BASE + \ - GLFS_BITROT_STUB_NUM_MESSAGES + 1) -/* Messaged with message IDs */ -#define glfs_msg_start_x GLFS_BITROT_STUB_BASE, "Invalid: Start of messages" -/*------------*/ - - -#define BRS_MSG_NO_MEMORY (GLFS_BITROT_STUB_BASE + 1) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_SET_EVENT_FAILED (GLFS_BITROT_STUB_BASE + 2) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_MEM_ACNT_FAILED (GLFS_BITROT_STUB_BASE + 3) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_CREATE_FRAME_FAILED (GLFS_BITROT_STUB_BASE + 4) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_SET_CONTEXT_FAILED (GLFS_BITROT_STUB_BASE + 5) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_CHANGE_VERSION_FAILED (GLFS_BITROT_STUB_BASE + 6) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_ADD_FD_TO_LIST_FAILED (GLFS_BITROT_STUB_BASE + 7) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_SET_FD_CONTEXT_FAILED (GLFS_BITROT_STUB_BASE + 8) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_CREATE_ANONYMOUS_FD_FAILED (GLFS_BITROT_STUB_BASE + 9) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_NO_CHILD (GLFS_BITROT_STUB_BASE + 10) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_STUB_ALLOC_FAILED (GLFS_BITROT_STUB_BASE + 11) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_GET_INODE_CONTEXT_FAILED (GLFS_BITROT_STUB_BASE + 12) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_CANCEL_SIGN_THREAD_FAILED (GLFS_BITROT_STUB_BASE + 13) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_ADD_FD_TO_INODE (GLFS_BITROT_STUB_BASE + 14) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_SIGN_VERSION_ERROR (GLFS_BITROT_STUB_BASE + 15) -/*! - * @messageid - * @diagnosis - * @recommendedaction +/* To add new message IDs, append new identifiers at the end of the list. * - */ -#define BRS_MSG_BAD_OBJ_MARK_FAIL (GLFS_BITROT_STUB_BASE + 16) -/*! - * @messageid - * @diagnosis - * @recommendedaction + * Never remove a message ID. If it's not used anymore, you can rename it or + * leave it as it is, but not delete it. This is to prevent reutilization of + * IDs by other messages. * + * The component name must match one of the entries defined in + * glfs-message-id.h. */ -#define BRS_MSG_NON_SCRUB_BAD_OBJ_MARK (GLFS_BITROT_STUB_BASE + 17) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_REMOVE_INTERNAL_XATTR (GLFS_BITROT_STUB_BASE + 18) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_SET_INTERNAL_XATTR (GLFS_BITROT_STUB_BASE + 19) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJECT_ACCESS (GLFS_BITROT_STUB_BASE + 20) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_CONTAINER_FAIL (GLFS_BITROT_STUB_BASE + 21) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJECT_DIR_FAIL (GLFS_BITROT_STUB_BASE + 22) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL (GLFS_BITROT_STUB_BASE + 23) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJECT_DIR_TELL_FAIL (GLFS_BITROT_STUB_BASE + 24) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJECT_DIR_READ_FAIL (GLFS_BITROT_STUB_BASE + 25) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_GET_FD_CONTEXT_FAILED (GLFS_BITROT_STUB_BASE + 26) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_HANDLE_DIR_NULL (GLFS_BITROT_STUB_BASE + 27) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJ_THREAD_FAIL (GLFS_BITROT_STUB_BASE + 28) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJ_DIR_CLOSE_FAIL (GLFS_BITROT_STUB_BASE + 29) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_LINK_FAIL (GLFS_BITROT_STUB_BASE + 30) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -#define BRS_MSG_BAD_OBJ_UNLINK_FAIL (GLFS_BITROT_STUB_BASE + 31) -/*! - * @messageid - * @diagnosis - * @recommendedaction - * - */ -/*------------*/ -#define glfs_msg_end_x GLFS_MSGID_END, "Invalid: End of messages" +GLFS_MSGID(BITROT_STUB, BRS_MSG_NO_MEMORY, BRS_MSG_SET_EVENT_FAILED, + BRS_MSG_MEM_ACNT_FAILED, BRS_MSG_CREATE_FRAME_FAILED, + BRS_MSG_SET_CONTEXT_FAILED, BRS_MSG_CHANGE_VERSION_FAILED, + BRS_MSG_ADD_FD_TO_LIST_FAILED, BRS_MSG_SET_FD_CONTEXT_FAILED, + BRS_MSG_CREATE_ANONYMOUS_FD_FAILED, BRS_MSG_NO_CHILD, + BRS_MSG_STUB_ALLOC_FAILED, BRS_MSG_GET_INODE_CONTEXT_FAILED, + BRS_MSG_CANCEL_SIGN_THREAD_FAILED, BRS_MSG_ADD_FD_TO_INODE, + BRS_MSG_SIGN_VERSION_ERROR, BRS_MSG_BAD_OBJ_MARK_FAIL, + BRS_MSG_NON_SCRUB_BAD_OBJ_MARK, BRS_MSG_REMOVE_INTERNAL_XATTR, + BRS_MSG_SET_INTERNAL_XATTR, BRS_MSG_BAD_OBJECT_ACCESS, + BRS_MSG_BAD_CONTAINER_FAIL, BRS_MSG_BAD_OBJECT_DIR_FAIL, + BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL, BRS_MSG_BAD_OBJECT_DIR_TELL_FAIL, + BRS_MSG_BAD_OBJECT_DIR_READ_FAIL, BRS_MSG_GET_FD_CONTEXT_FAILED, + BRS_MSG_BAD_HANDLE_DIR_NULL, BRS_MSG_BAD_OBJ_THREAD_FAIL, + BRS_MSG_BAD_OBJ_DIR_CLOSE_FAIL, BRS_MSG_LINK_FAIL, + BRS_MSG_BAD_OBJ_UNLINK_FAIL, BRS_MSG_DICT_SET_FAILED, + BRS_MSG_PATH_GET_FAILED, BRS_MSG_NULL_LOCAL, + BRS_MSG_SPAWN_SIGN_THRD_FAILED, BRS_MSG_KILL_SIGN_THREAD, + BRS_MSG_NON_BITD_PID, BRS_MSG_SIGN_PREPARE_FAIL, + BRS_MSG_USING_DEFAULT_THREAD_SIZE, BRS_MSG_ALLOC_MEM_FAILED, + BRS_MSG_DICT_ALLOC_FAILED, BRS_MSG_CREATE_GF_DIRENT_FAILED, + BRS_MSG_ALLOC_FAILED, BRS_MSG_PATH_XATTR_GET_FAILED, + BRS_MSG_VERSION_PREPARE_FAIL); + +#define BRS_MSG_MEM_ACNT_FAILED_STR "Memory accounting init failed" +#define BRS_MSG_BAD_OBJ_THREAD_FAIL_STR "pthread_init failed" +#define BRS_MSG_USING_DEFAULT_THREAD_SIZE_STR "Using default thread stack size" +#define BRS_MSG_NO_CHILD_STR "FATAL: no children" +#define BRS_MSG_SPAWN_SIGN_THRD_FAILED_STR \ + "failed to create the new thread for signer" +#define BRS_MSG_BAD_CONTAINER_FAIL_STR \ + "failed to launch the thread for storing bad gfids" +#define BRS_MSG_CANCEL_SIGN_THREAD_FAILED_STR \ + "Could not cancel sign serializer thread" +#define BRS_MSG_KILL_SIGN_THREAD_STR "killed the signer thread" +#define BRS_MSG_GET_INODE_CONTEXT_FAILED_STR \ + "failed to init the inode context for the inode" +#define BRS_MSG_ADD_FD_TO_INODE_STR "failed to add fd to the inode" +#define BRS_MSG_NO_MEMORY_STR "local allocation failed" +#define BRS_MSG_BAD_OBJECT_ACCESS_STR "bad object accessed. Returning" +#define BRS_MSG_SIGN_VERSION_ERROR_STR "Signing version exceeds current version" +#define BRS_MSG_NON_BITD_PID_STR \ + "PID from where signature request came, does not belong to bit-rot " \ + "daemon. Unwinding the fop" +#define BRS_MSG_SIGN_PREPARE_FAIL_STR \ + "failed to prepare the signature. Unwinding the fop" +#define BRS_MSG_VERSION_PREPARE_FAIL_STR \ + "failed to prepare the version. Unwinding the fop" +#define BRS_MSG_STUB_ALLOC_FAILED_STR "failed to allocate stub fop, Unwinding" +#define BRS_MSG_BAD_OBJ_MARK_FAIL_STR "failed to mark object as bad" +#define BRS_MSG_NON_SCRUB_BAD_OBJ_MARK_STR \ + "bad object marking is not from the scrubber" +#define BRS_MSG_ALLOC_MEM_FAILED_STR "failed to allocate memory" +#define BRS_MSG_SET_INTERNAL_XATTR_STR "called on the internal xattr" +#define BRS_MSG_REMOVE_INTERNAL_XATTR_STR "removexattr called on internal xattr" +#define BRS_MSG_CREATE_ANONYMOUS_FD_FAILED_STR \ + "failed to create anonymous fd for the inode" +#define BRS_MSG_ADD_FD_TO_LIST_FAILED_STR "failed add fd to the list" +#define BRS_MSG_SET_FD_CONTEXT_FAILED_STR \ + "failed to set the fd context for the file" +#define BRS_MSG_NULL_LOCAL_STR "local is NULL" +#define BRS_MSG_DICT_ALLOC_FAILED_STR \ + "dict allocation failed: cannot send IPC FOP to changelog" +#define BRS_MSG_SET_EVENT_FAILED_STR "cannot set release event in dict" +#define BRS_MSG_CREATE_FRAME_FAILED_STR "create_frame() failure" +#define BRS_MSG_BAD_OBJ_DIR_CLOSE_FAIL_STR "closedir error" +#define BRS_MSG_LINK_FAIL_STR "failed to record gfid" +#define BRS_MSG_BAD_OBJ_UNLINK_FAIL_STR \ + "failed to delete bad object link from quaratine directory" +#define BRS_MSG_BAD_OBJECT_DIR_FAIL_STR "failed stub directory" +#define BRS_MSG_BAD_OBJECT_DIR_SEEK_FAIL_STR \ + "seekdir failed. Invalid argument (offset reused from another DIR * " \ + "structure)" +#define BRS_MSG_BAD_OBJECT_DIR_TELL_FAIL_STR "telldir failed on dir" +#define BRS_MSG_BAD_OBJECT_DIR_READ_FAIL_STR "readdir failed on dir" +#define BRS_MSG_CREATE_GF_DIRENT_FAILED_STR "could not create gf_dirent" +#define BRS_MSG_GET_FD_CONTEXT_FAILED_STR "pfd is NULL" +#define BRS_MSG_BAD_HANDLE_DIR_NULL_STR "dir if NULL" +#define BRS_MSG_ALLOC_FAILED_STR \ + "failed to allocate new dict for saving the paths of the corrupted " \ + "objects. Scrub status will only display the gfid" +#define BRS_MSG_PATH_GET_FAILED_STR "failed to get the path" +#define BRS_MSG_PATH_XATTR_GET_FAILED_STR \ + "failed to get the path xattr from disk for the gfid. Trying to get path " \ + "from the memory" +#define BRS_MSG_DICT_SET_FAILED_STR \ + "failed to set the actual path as the value in the dict for the " \ + "corrupted object" +#define BRS_MSG_SET_CONTEXT_FAILED_STR \ + "could not set fd context for release callback" +#define BRS_MSG_CHANGE_VERSION_FAILED_STR "change version failed" #endif /* !_BITROT_STUB_MESSAGES_H_ */ diff --git a/xlators/features/bit-rot/src/stub/bit-rot-stub.c b/xlators/features/bit-rot/src/stub/bit-rot-stub.c index 4e01f5c86b1..447dd47ff41 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-stub.c +++ b/xlators/features/bit-rot/src/stub/bit-rot-stub.c @@ -10,312 +10,433 @@ #include <ctype.h> #include <sys/uio.h> +#include <signal.h> -#include "glusterfs.h" -#include "xlator.h" -#include "logging.h" +#include <glusterfs/glusterfs.h> +#include <glusterfs/logging.h> #include "changelog.h" -#include "compat-errno.h" -#include "call-stub.h" +#include <glusterfs/compat-errno.h> +#include <glusterfs/call-stub.h> #include "bit-rot-stub.h" #include "bit-rot-stub-mem-types.h" #include "bit-rot-stub-messages.h" #include "bit-rot-common.h" -#define BR_STUB_REQUEST_COOKIE 0x1 +#define BR_STUB_REQUEST_COOKIE 0x1 -void *br_stub_signth (void *); +void +br_stub_lock_cleaner(void *arg) +{ + pthread_mutex_t *clean_mutex = arg; + + pthread_mutex_unlock(clean_mutex); + return; +} + +void * +br_stub_signth(void *); struct br_stub_signentry { - unsigned long v; + unsigned long v; - call_stub_t *stub; + call_stub_t *stub; - struct list_head list; + struct list_head list; }; int32_t -mem_acct_init (xlator_t *this) +mem_acct_init(xlator_t *this) { - int32_t ret = -1; - - if (!this) - return ret; - - ret = xlator_mem_acct_init (this, gf_br_stub_mt_end + 1); - - if (ret != 0) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRS_MSG_MEM_ACNT_FAILED, - "Memory accounting init failed"); - return ret; - } + int32_t ret = -1; + if (!this) return ret; -} - -int32_t -br_stub_bad_object_container_init (xlator_t *this, br_stub_private_t *priv) -{ - pthread_attr_t w_attr; - int32_t ret = -1; - - ret = pthread_cond_init(&priv->container.bad_cond, NULL); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJ_THREAD_FAIL, - "pthread_cond_init failed (%d)", ret); - goto out; - } - ret = pthread_mutex_init(&priv->container.bad_lock, NULL); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJ_THREAD_FAIL, - "pthread_mutex_init failed (%d)", ret); - goto cleanup_cond; - } + ret = xlator_mem_acct_init(this, gf_br_stub_mt_end + 1); - ret = pthread_attr_init (&w_attr); - if (ret != 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJ_THREAD_FAIL, - "pthread_attr_init failed (%d)", ret); - goto cleanup_lock; - } - - ret = pthread_attr_setstacksize (&w_attr, BAD_OBJECT_THREAD_STACK_SIZE); - if (ret == EINVAL) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_BAD_OBJ_THREAD_FAIL, - "Using default thread stack size"); - } - - INIT_LIST_HEAD (&priv->container.bad_queue); - ret = br_stub_dir_create (this, priv); - if (ret < 0) - goto cleanup_lock; + if (ret != 0) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_MEM_ACNT_FAILED, NULL); + return ret; + } - ret = gf_thread_create (&priv->container.thread, &w_attr, br_stub_worker, this); - if (ret) - goto cleanup_attr; + return ret; +} - return 0; +int +br_stub_bad_object_container_init(xlator_t *this, br_stub_private_t *priv) +{ + pthread_attr_t w_attr; + int ret = -1; + + ret = pthread_cond_init(&priv->container.bad_cond, NULL); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_THREAD_FAIL, + "cond_init ret=%d", ret, NULL); + goto out; + } + + ret = pthread_mutex_init(&priv->container.bad_lock, NULL); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_THREAD_FAIL, + "mutex_init ret=%d", ret, NULL); + goto cleanup_cond; + } + + ret = pthread_attr_init(&w_attr); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_THREAD_FAIL, + "attr_init ret=%d", ret, NULL); + goto cleanup_lock; + } + + ret = pthread_attr_setstacksize(&w_attr, BAD_OBJECT_THREAD_STACK_SIZE); + if (ret == EINVAL) { + gf_smsg(this->name, GF_LOG_WARNING, 0, + BRS_MSG_USING_DEFAULT_THREAD_SIZE, NULL); + } + + INIT_LIST_HEAD(&priv->container.bad_queue); + ret = br_stub_dir_create(this, priv); + if (ret < 0) + goto cleanup_lock; + + ret = gf_thread_create(&priv->container.thread, &w_attr, br_stub_worker, + this, "brswrker"); + if (ret) + goto cleanup_attr; + + return 0; cleanup_attr: - pthread_attr_destroy (&w_attr); + pthread_attr_destroy(&w_attr); cleanup_lock: - pthread_mutex_destroy (&priv->container.bad_lock); + pthread_mutex_destroy(&priv->container.bad_lock); cleanup_cond: - pthread_cond_destroy (&priv->container.bad_cond); + pthread_cond_destroy(&priv->container.bad_cond); out: - return -1; + return -1; } -#define BR_STUB_QUARANTINE_DIR GF_HIDDEN_PATH"/quanrantine" - int32_t -init (xlator_t *this) +init(xlator_t *this) { - int32_t ret = 0; - char *tmp = NULL; - struct timeval tv = {0,}; - br_stub_private_t *priv = NULL; + int ret = 0; + char *tmp = NULL; + struct timeval tv = { + 0, + }; + br_stub_private_t *priv = NULL; - if (!this->children) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_NO_CHILD, - "FATAL: no children"); - goto error_return; - } + if (!this->children) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_NO_CHILD, NULL); + goto error_return; + } - priv = GF_CALLOC (1, sizeof (*priv), gf_br_stub_mt_private_t); - if (!priv) - goto error_return; + priv = GF_CALLOC(1, sizeof(*priv), gf_br_stub_mt_private_t); + if (!priv) + goto error_return; - priv->local_pool = mem_pool_new (br_stub_local_t, 512); - if (!priv->local_pool) - goto free_priv; + priv->local_pool = mem_pool_new(br_stub_local_t, 512); + if (!priv->local_pool) + goto free_priv; - GF_OPTION_INIT ("bitrot", priv->go, bool, free_mempool); + GF_OPTION_INIT("bitrot", priv->do_versioning, bool, free_mempool); - GF_OPTION_INIT ("export", tmp, str, free_mempool); - memcpy (priv->export, tmp, strlen (tmp) + 1); + GF_OPTION_INIT("export", tmp, str, free_mempool); - (void) snprintf (priv->stub_basepath, PATH_MAX, - "%s/%s", priv->export, BR_STUB_QUARANTINE_DIR); + if (snprintf(priv->export, PATH_MAX, "%s", tmp) >= PATH_MAX) + goto free_mempool; - (void) gettimeofday (&tv, NULL); + if (snprintf(priv->stub_basepath, sizeof(priv->stub_basepath), "%s/%s", + priv->export, + BR_STUB_QUARANTINE_DIR) >= sizeof(priv->stub_basepath)) + goto free_mempool; - /* boot time is in network endian format */ - priv->boot[0] = htonl (tv.tv_sec); - priv->boot[1] = htonl (tv.tv_usec); + (void)gettimeofday(&tv, NULL); - pthread_mutex_init (&priv->lock, NULL); - pthread_cond_init (&priv->cond, NULL); - INIT_LIST_HEAD (&priv->squeue); + /* boot time is in network endian format */ + priv->boot[0] = htonl(tv.tv_sec); + priv->boot[1] = htonl(tv.tv_usec); - /* Thread creations need 'this' to be passed so that THIS can be - * assigned inside the thread. So setting this->private here. - */ - this->private = priv; + pthread_mutex_init(&priv->lock, NULL); + pthread_cond_init(&priv->cond, NULL); + INIT_LIST_HEAD(&priv->squeue); + + /* Thread creations need 'this' to be passed so that THIS can be + * assigned inside the thread. So setting this->private here. + */ + this->private = priv; + if (!priv->do_versioning) + return 0; - ret = gf_thread_create (&priv->signth, NULL, br_stub_signth, this); - if (ret != 0) - goto cleanup_lock; + ret = gf_thread_create(&priv->signth, NULL, br_stub_signth, this, + "brssign"); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_SPAWN_SIGN_THRD_FAILED, + NULL); + goto cleanup_lock; + } - ret = br_stub_bad_object_container_init (this, priv); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_CONTAINER_FAIL, - "failed to launch the thread for storing bad gfids"); - goto cleanup_lock; + ret = br_stub_bad_object_container_init(this, priv); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_CONTAINER_FAIL, NULL); + goto cleanup_lock; + } + + gf_msg_debug(this->name, 0, "bit-rot stub loaded"); + + return 0; + +cleanup_lock: + pthread_cond_destroy(&priv->cond); + pthread_mutex_destroy(&priv->lock); +free_mempool: + mem_pool_destroy(priv->local_pool); + priv->local_pool = NULL; +free_priv: + GF_FREE(priv); + this->private = NULL; +error_return: + return -1; +} + +/* TODO: + * As of now enabling bitrot option does 2 things. + * 1) Start the Bitrot Daemon which signs the objects (currently files only) + * upon getting notified by the stub. + * 2) Enable versioning of the objects. Object versions (again files only) are + * incremented upon modification. + * So object versioning is tied to bitrot daemon's signing. In future, object + * versioning might be necessary for other things as well apart from bit-rot + * detection (well that's the objective of bringing in object-versioning :)). + * In that case, better to make versioning a new option and letting it to be + * enabled despite bit-rot detection is not needed. + * Ex: ICAP. + */ +int32_t +reconfigure(xlator_t *this, dict_t *options) +{ + int32_t ret = -1; + br_stub_private_t *priv = NULL; + + priv = this->private; + + GF_OPTION_RECONF("bitrot", priv->do_versioning, options, bool, err); + if (priv->do_versioning && !priv->signth) { + ret = gf_thread_create(&priv->signth, NULL, br_stub_signth, this, + "brssign"); + if (ret != 0) { + gf_smsg(this->name, GF_LOG_WARNING, 0, + BRS_MSG_SPAWN_SIGN_THRD_FAILED, NULL); + goto err; } - gf_msg_debug (this->name, 0, "bit-rot stub loaded"); + ret = br_stub_bad_object_container_init(this, priv); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_CONTAINER_FAIL, + NULL); + goto err; + } + } else { + if (priv->signth) { + if (gf_thread_cleanup_xint(priv->signth)) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_CANCEL_SIGN_THREAD_FAILED, NULL); + } else { + gf_smsg(this->name, GF_LOG_INFO, 0, BRS_MSG_KILL_SIGN_THREAD, + NULL); + priv->signth = 0; + } + } + + if (priv->container.thread) { + if (gf_thread_cleanup_xint(priv->container.thread)) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_CANCEL_SIGN_THREAD_FAILED, NULL); + } + priv->container.thread = 0; + } + } + + ret = 0; + return ret; +err: + if (priv->signth) { + if (gf_thread_cleanup_xint(priv->signth)) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_CANCEL_SIGN_THREAD_FAILED, NULL); + } + priv->signth = 0; + } + + if (priv->container.thread) { + if (gf_thread_cleanup_xint(priv->container.thread)) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_CANCEL_SIGN_THREAD_FAILED, NULL); + } + priv->container.thread = 0; + } + ret = -1; + return ret; +} +int +notify(xlator_t *this, int event, void *data, ...) +{ + br_stub_private_t *priv = NULL; + + if (!this) return 0; - cleanup_lock: - pthread_cond_destroy (&priv->cond); - pthread_mutex_destroy (&priv->lock); - free_mempool: - mem_pool_destroy (priv->local_pool); - free_priv: - GF_FREE (priv); - this->private = NULL; - error_return: - return -1; + priv = this->private; + if (!priv) + return 0; + + default_notify(this, event, data); + return 0; } void -fini (xlator_t *this) +fini(xlator_t *this) { - int32_t ret = 0; - br_stub_private_t *priv = this->private; - struct br_stub_signentry *sigstub = NULL; - call_stub_t *stub = NULL; + int32_t ret = 0; + br_stub_private_t *priv = this->private; + struct br_stub_signentry *sigstub = NULL; + call_stub_t *stub = NULL; - if (!priv) - return; + if (!priv) + return; - ret = gf_thread_cleanup_xint (priv->signth); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_CANCEL_SIGN_THREAD_FAILED, - "Could not cancel sign serializer thread"); - goto out; - } + if (!priv->do_versioning) + goto cleanup; - while (!list_empty (&priv->squeue)) { - sigstub = list_first_entry (&priv->squeue, - struct br_stub_signentry, list); - list_del_init (&sigstub->list); + ret = gf_thread_cleanup_xint(priv->signth); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_CANCEL_SIGN_THREAD_FAILED, + NULL); + goto out; + } + priv->signth = 0; - call_stub_destroy (sigstub->stub); - GF_FREE (sigstub); - } + while (!list_empty(&priv->squeue)) { + sigstub = list_first_entry(&priv->squeue, struct br_stub_signentry, + list); + list_del_init(&sigstub->list); - pthread_mutex_destroy (&priv->lock); - pthread_cond_destroy (&priv->cond); + call_stub_destroy(sigstub->stub); + GF_FREE(sigstub); + } - ret = gf_thread_cleanup_xint (priv->container.thread); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_CANCEL_SIGN_THREAD_FAILED, - "Could not cancel sign serializer thread"); - goto out; - } + ret = gf_thread_cleanup_xint(priv->container.thread); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_CANCEL_SIGN_THREAD_FAILED, + NULL); + goto out; + } - while (!list_empty (&priv->container.bad_queue)) { - stub = list_first_entry (&priv->container.bad_queue, call_stub_t, - list); - list_del_init (&stub->list); - call_stub_destroy (stub); - }; + priv->container.thread = 0; - pthread_mutex_destroy (&priv->container.bad_lock); - pthread_cond_destroy (&priv->container.bad_cond); + while (!list_empty(&priv->container.bad_queue)) { + stub = list_first_entry(&priv->container.bad_queue, call_stub_t, list); + list_del_init(&stub->list); + call_stub_destroy(stub); + } - this->private = NULL; - GF_FREE (priv); + pthread_mutex_destroy(&priv->container.bad_lock); + pthread_cond_destroy(&priv->container.bad_cond); - out: - return; +cleanup: + pthread_mutex_destroy(&priv->lock); + pthread_cond_destroy(&priv->cond); + + if (priv->local_pool) { + mem_pool_destroy(priv->local_pool); + priv->local_pool = NULL; + } + + this->private = NULL; + GF_FREE(priv); + +out: + return; } static int -br_stub_alloc_versions (br_version_t **obuf, - br_signature_t **sbuf, size_t signaturelen) +br_stub_alloc_versions(br_version_t **obuf, br_signature_t **sbuf, + size_t signaturelen) { - void *mem = NULL; - size_t size = 0; + void *mem = NULL; + size_t size = 0; - if (obuf) - size += sizeof (br_version_t); - if (sbuf) - size += sizeof (br_signature_t) + signaturelen; + if (obuf) + size += sizeof(br_version_t); + if (sbuf) + size += sizeof(br_signature_t) + signaturelen; - mem = GF_CALLOC (1, size, gf_br_stub_mt_version_t); - if (!mem) - goto error_return; + mem = GF_CALLOC(1, size, gf_br_stub_mt_version_t); + if (!mem) + goto error_return; - if (obuf) { - *obuf = (br_version_t *)mem; - mem = ((char *)mem + sizeof (br_version_t)); - } - if (sbuf) { - *sbuf = (br_signature_t *)mem; - } + if (obuf) { + *obuf = (br_version_t *)mem; + mem = ((char *)mem + sizeof(br_version_t)); + } + if (sbuf) { + *sbuf = (br_signature_t *)mem; + } - return 0; + return 0; - error_return: - return -1; +error_return: + return -1; } static void -br_stub_dealloc_versions (void *mem) +br_stub_dealloc_versions(void *mem) { - GF_FREE (mem); + GF_FREE(mem); } static br_stub_local_t * -br_stub_alloc_local (xlator_t *this) +br_stub_alloc_local(xlator_t *this) { - br_stub_private_t *priv = this->private; + br_stub_private_t *priv = this->private; - return mem_get0 (priv->local_pool); + return mem_get0(priv->local_pool); } static void -br_stub_dealloc_local (br_stub_local_t *ptr) +br_stub_dealloc_local(br_stub_local_t *ptr) { - mem_put (ptr); + if (!ptr) + return; + + mem_put(ptr); } static int -br_stub_prepare_version_request (xlator_t *this, dict_t *dict, +br_stub_prepare_version_request(xlator_t *this, dict_t *dict, br_version_t *obuf, unsigned long oversion) { - br_stub_private_t *priv = NULL; + br_stub_private_t *priv = NULL; - priv = this->private; - br_set_ongoingversion (obuf, oversion, priv->boot); + priv = this->private; + br_set_ongoingversion(obuf, oversion, priv->boot); - return dict_set_static_bin (dict, BITROT_CURRENT_VERSION_KEY, - (void *)obuf, sizeof (br_version_t)); + return dict_set_bin(dict, BITROT_CURRENT_VERSION_KEY, (void *)obuf, + sizeof(br_version_t)); } static int -br_stub_prepare_signing_request (dict_t *dict, - br_signature_t *sbuf, - br_isignature_t *sign, size_t signaturelen) +br_stub_prepare_signing_request(dict_t *dict, br_signature_t *sbuf, + br_isignature_t *sign, size_t signaturelen) { - size_t size = 0; + size_t size = 0; - br_set_signature (sbuf, sign, signaturelen, &size); + br_set_signature(sbuf, sign, signaturelen, &size); - return dict_set_static_bin (dict, BITROT_SIGNING_VERSION_KEY, - (void *)sbuf, size); + return dict_set_bin(dict, BITROT_SIGNING_VERSION_KEY, (void *)sbuf, size); } /** @@ -325,224 +446,245 @@ br_stub_prepare_signing_request (dict_t *dict, * initializes the transient inode version. */ static int -br_stub_init_inode_versions (xlator_t *this, fd_t *fd, inode_t *inode, - unsigned long version, gf_boolean_t markdirty, - gf_boolean_t bad_object) -{ - int32_t ret = 0; - br_stub_inode_ctx_t *ctx = NULL; - - ctx = GF_CALLOC (1, sizeof (br_stub_inode_ctx_t), - gf_br_stub_mt_inode_ctx_t); - if (!ctx) - goto error_return; - - INIT_LIST_HEAD (&ctx->fd_list); - (markdirty) ? __br_stub_mark_inode_dirty (ctx) - : __br_stub_mark_inode_synced (ctx); - __br_stub_set_ongoing_version (ctx, version); - - if (bad_object) - __br_stub_mark_object_bad (ctx); - - if (fd) { - ret = br_stub_add_fd_to_inode (this, fd, ctx); - if (ret) - goto free_ctx; - } +br_stub_init_inode_versions(xlator_t *this, fd_t *fd, inode_t *inode, + unsigned long version, gf_boolean_t markdirty, + gf_boolean_t bad_object, uint64_t *ctx_addr) +{ + int32_t ret = 0; + br_stub_inode_ctx_t *ctx = NULL; + + ctx = GF_CALLOC(1, sizeof(br_stub_inode_ctx_t), gf_br_stub_mt_inode_ctx_t); + if (!ctx) + goto error_return; + + INIT_LIST_HEAD(&ctx->fd_list); + (markdirty) ? __br_stub_mark_inode_dirty(ctx) + : __br_stub_mark_inode_synced(ctx); + __br_stub_set_ongoing_version(ctx, version); + + if (bad_object) + __br_stub_mark_object_bad(ctx); - ret = br_stub_set_inode_ctx (this, inode, ctx); + if (fd) { + ret = br_stub_add_fd_to_inode(this, fd, ctx); if (ret) - goto free_ctx; - return 0; + goto free_ctx; + } + + ret = br_stub_set_inode_ctx(this, inode, ctx); + if (ret) + goto free_ctx; + + if (ctx_addr) + *ctx_addr = (uint64_t)(uintptr_t)ctx; + return 0; free_ctx: - GF_FREE (ctx); - error_return: - return -1; + GF_FREE(ctx); +error_return: + return -1; } /** * modify the ongoing version of an inode. */ static int -br_stub_mod_inode_versions (xlator_t *this, - fd_t *fd, inode_t *inode, unsigned long version) +br_stub_mod_inode_versions(xlator_t *this, fd_t *fd, inode_t *inode, + unsigned long version) { - int32_t ret = -1; - br_stub_inode_ctx_t *ctx = 0; + int32_t ret = -1; + br_stub_inode_ctx_t *ctx = 0; - LOCK (&inode->lock); - { - ctx = __br_stub_get_ongoing_version_ctx (this, inode, NULL); - if (ctx == NULL) - goto unblock; - if (__br_stub_is_inode_dirty (ctx)) { - __br_stub_set_ongoing_version (ctx, version); - __br_stub_mark_inode_synced (ctx); - } - - ret = 0; + LOCK(&inode->lock); + { + ctx = __br_stub_get_ongoing_version_ctx(this, inode, NULL); + if (ctx == NULL) + goto unblock; + if (__br_stub_is_inode_dirty(ctx)) { + __br_stub_set_ongoing_version(ctx, version); + __br_stub_mark_inode_synced(ctx); } + + ret = 0; + } unblock: - UNLOCK (&inode->lock); + UNLOCK(&inode->lock); - return ret; + return ret; } static void -br_stub_fill_local (br_stub_local_t *local, - call_stub_t *stub, fd_t *fd, inode_t *inode, uuid_t gfid, - int versioningtype, unsigned long memversion) +br_stub_fill_local(br_stub_local_t *local, call_stub_t *stub, fd_t *fd, + inode_t *inode, uuid_t gfid, int versioningtype, + unsigned long memversion) { - local->fopstub = stub; - local->versioningtype = versioningtype; - local->u.context.version = memversion; - if (fd) - local->u.context.fd = fd_ref (fd); - if (inode) - local->u.context.inode = inode_ref (inode); - gf_uuid_copy (local->u.context.gfid, gfid); + local->fopstub = stub; + local->versioningtype = versioningtype; + local->u.context.version = memversion; + if (fd) + local->u.context.fd = fd_ref(fd); + if (inode) + local->u.context.inode = inode_ref(inode); + gf_uuid_copy(local->u.context.gfid, gfid); } static void -br_stub_cleanup_local (br_stub_local_t *local) -{ - local->fopstub = NULL; - local->versioningtype = 0; - local->u.context.version = 0; - if (local->u.context.fd) { - fd_unref (local->u.context.fd); - local->u.context.fd = NULL; - } - if (local->u.context.inode) { - inode_unref (local->u.context.inode); - local->u.context.inode = NULL; - } - memset (local->u.context.gfid, '\0', sizeof (uuid_t)); +br_stub_cleanup_local(br_stub_local_t *local) +{ + if (!local) + return; + + local->fopstub = NULL; + local->versioningtype = 0; + local->u.context.version = 0; + if (local->u.context.fd) { + fd_unref(local->u.context.fd); + local->u.context.fd = NULL; + } + if (local->u.context.inode) { + inode_unref(local->u.context.inode); + local->u.context.inode = NULL; + } + memset(local->u.context.gfid, '\0', sizeof(uuid_t)); } static int -br_stub_need_versioning (xlator_t *this, - fd_t *fd, gf_boolean_t *versioning, - gf_boolean_t *modified, br_stub_inode_ctx_t **ctx) -{ - int32_t ret = -1; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *c = NULL; - - *versioning = _gf_false; - *modified = _gf_false; - - ret = br_stub_get_inode_ctx (this, fd->inode, &ctx_addr); - if (ret < 0) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, "failed to get the " - "inode context for the inode %s", - uuid_utoa (fd->inode->gfid)); - goto error_return; +br_stub_need_versioning(xlator_t *this, fd_t *fd, gf_boolean_t *versioning, + gf_boolean_t *modified, br_stub_inode_ctx_t **ctx) +{ + int32_t ret = -1; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *c = NULL; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; + + *versioning = _gf_false; + *modified = _gf_false; + + /* Bitrot stub inode context was initialized only in lookup, create + * and mknod cbk path. Object versioning was enabled by default + * irrespective of bitrot enabled or not. But it's made optional now. + * As a consequence there could be cases where getting inode ctx would + * fail because it's not set yet. + * e.g., If versioning (with bitrot enable) is enabled while I/O is + * happening, it could directly get other fops like writev without + * lookup, where getting inode ctx would fail. Hence initialize the + * inode ctx on failure to get ctx. This is done in all places where + * applicable. + */ + ret = br_stub_get_inode_ctx(this, fd->inode, &ctx_addr); + if (ret < 0) { + ret = br_stub_init_inode_versions(this, fd, fd->inode, version, + _gf_true, _gf_false, &ctx_addr); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_GET_INODE_CONTEXT_FAILED, "gfid=%s", + uuid_utoa(fd->inode->gfid), NULL); + goto error_return; } + } - c = (br_stub_inode_ctx_t *) (long) ctx_addr; + c = (br_stub_inode_ctx_t *)(long)ctx_addr; - LOCK (&fd->inode->lock); - { - if (__br_stub_is_inode_dirty (c)) - *versioning = _gf_true; - if (__br_stub_is_inode_modified (c)) - *modified = _gf_true; - } - UNLOCK (&fd->inode->lock); + LOCK(&fd->inode->lock); + { + if (__br_stub_is_inode_dirty(c)) + *versioning = _gf_true; + if (__br_stub_is_inode_modified(c)) + *modified = _gf_true; + } + UNLOCK(&fd->inode->lock); - if (ctx) - *ctx = c; - return 0; + if (ctx) + *ctx = c; + return 0; - error_return: - return -1; +error_return: + return -1; } static int32_t -br_stub_anon_fd_ctx (xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx) -{ - int32_t ret = -1; - br_stub_fd_t *br_stub_fd = NULL; - - br_stub_fd = br_stub_fd_ctx_get (this, fd); - if (!br_stub_fd) { - ret = br_stub_add_fd_to_inode (this, fd, ctx); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_ADD_FD_TO_INODE, "failed to add fd to " - "the inode (gfid: %s)", - uuid_utoa (fd->inode->gfid)); - goto out; - } +br_stub_anon_fd_ctx(xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx) +{ + int32_t ret = -1; + br_stub_fd_t *br_stub_fd = NULL; + + br_stub_fd = br_stub_fd_ctx_get(this, fd); + if (!br_stub_fd) { + ret = br_stub_add_fd_to_inode(this, fd, ctx); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ADD_FD_TO_INODE, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto out; } + } - ret = 0; + ret = 0; out: - return ret; + return ret; } static int -br_stub_versioning_prep (call_frame_t *frame, - xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx) +br_stub_versioning_prep(call_frame_t *frame, xlator_t *this, fd_t *fd, + br_stub_inode_ctx_t *ctx) { - int32_t ret = -1; - br_stub_local_t *local = NULL; + int32_t ret = -1; + br_stub_local_t *local = NULL; - local = br_stub_alloc_local (this); - if (!local) { - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRS_MSG_NO_MEMORY, - "local allocation failed (gfid: %s)", - uuid_utoa (fd->inode->gfid)); - goto error_return; - } + local = br_stub_alloc_local(this); + if (!local) { + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRS_MSG_NO_MEMORY, "gfid=%s", + uuid_utoa(fd->inode->gfid), NULL); + goto error_return; + } - if (fd_is_anonymous (fd)) { - ret = br_stub_anon_fd_ctx (this, fd, ctx); - if (ret) - goto free_local; - } + if (fd_is_anonymous(fd)) { + ret = br_stub_anon_fd_ctx(this, fd, ctx); + if (ret) + goto free_local; + } - frame->local = local; + frame->local = local; - return 0; + return 0; - free_local: - br_stub_dealloc_local (local); - error_return: - return -1; +free_local: + br_stub_dealloc_local(local); +error_return: + return -1; } static int -br_stub_mark_inode_modified (xlator_t *this, br_stub_local_t *local) +br_stub_mark_inode_modified(xlator_t *this, br_stub_local_t *local) { - fd_t *fd = NULL; - int32_t ret = 0; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; + fd_t *fd = NULL; + int32_t ret = 0; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; - fd = local->u.context.fd; + fd = local->u.context.fd; - ret = br_stub_get_inode_ctx (this, fd->inode, &ctx_addr); - if (ret < 0) - goto error_return; + ret = br_stub_get_inode_ctx(this, fd->inode, &ctx_addr); + if (ret < 0) { + ret = br_stub_init_inode_versions(this, fd, fd->inode, version, + _gf_true, _gf_false, &ctx_addr); + if (ret) + goto error_return; + } - ctx = (br_stub_inode_ctx_t *) (long) ctx_addr; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - LOCK (&fd->inode->lock); - { - __br_stub_set_inode_modified (ctx); - } - UNLOCK (&fd->inode->lock); + LOCK(&fd->inode->lock); + { + __br_stub_set_inode_modified(ctx); + } + UNLOCK(&fd->inode->lock); - return 0; + return 0; - error_return: - return -1; +error_return: + return -1; } /** @@ -554,65 +696,68 @@ br_stub_mark_inode_modified (xlator_t *this, br_stub_local_t *local) * and error is returned upwards. */ static int -br_stub_check_bad_object (xlator_t *this, inode_t *inode, int32_t *op_ret, - int32_t *op_errno) -{ - int ret = -1; - - ret = br_stub_is_bad_object (this, inode); - if (ret == -2) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJECT_ACCESS, - "%s is a bad object. Returning", - uuid_utoa (inode->gfid)); - *op_ret = -1; - *op_errno = EIO; - } - - if (ret == -1) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, "could not get inode" - " context for %s", uuid_utoa (inode->gfid)); - *op_ret = -1; - *op_errno = EINVAL; +br_stub_check_bad_object(xlator_t *this, inode_t *inode, int32_t *op_ret, + int32_t *op_errno) +{ + int ret = -1; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; + + ret = br_stub_is_bad_object(this, inode); + if (ret == -2) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJECT_ACCESS, + "gfid=%s", uuid_utoa(inode->gfid), NULL); + *op_ret = -1; + *op_errno = EIO; + } + + if (ret == -1) { + ret = br_stub_init_inode_versions(this, NULL, inode, version, _gf_true, + _gf_false, NULL); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_GET_INODE_CONTEXT_FAILED, "gfid=%s", + uuid_utoa(inode->gfid), NULL); + *op_ret = -1; + *op_errno = EINVAL; } + } - return ret; + return ret; } /** * callback for inode/fd versioning */ int -br_stub_fd_incversioning_cbk (call_frame_t *frame, - void *cookie, xlator_t *this, - int op_ret, int op_errno, dict_t *xdata) -{ - fd_t *fd = NULL; - inode_t *inode = NULL; - unsigned long version = 0; - br_stub_local_t *local = NULL; - - local = (br_stub_local_t *)frame->local; - if (op_ret < 0) - goto done; - fd = local->u.context.fd; - inode = local->u.context.inode; - version = local->u.context.version; - - op_ret = br_stub_mod_inode_versions (this, fd, inode, version); - if (op_ret < 0) - op_errno = EINVAL; - - done: - if (op_ret < 0) { - frame->local = NULL; - call_unwind_error (local->fopstub, -1, op_errno); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - } else { - call_resume (local->fopstub); - } - return 0; +br_stub_fd_incversioning_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, dict_t *xdata) +{ + fd_t *fd = NULL; + inode_t *inode = NULL; + unsigned long version = 0; + br_stub_local_t *local = NULL; + + local = (br_stub_local_t *)frame->local; + if (op_ret < 0) + goto done; + fd = local->u.context.fd; + inode = local->u.context.inode; + version = local->u.context.version; + + op_ret = br_stub_mod_inode_versions(this, fd, inode, version); + if (op_ret < 0) + op_errno = EINVAL; + +done: + if (op_ret < 0) { + frame->local = NULL; + call_unwind_error(local->fopstub, -1, op_errno); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); + } else { + call_resume(local->fopstub); + } + return 0; } /** @@ -645,102 +790,101 @@ br_stub_fd_incversioning_cbk (call_frame_t *frame, /** * perform full or incremental versioning on an inode pointd by an * fd. incremental versioning is done when an inode is dirty and a - * writeback is trigerred. + * writeback is triggered. */ int -br_stub_fd_versioning (xlator_t *this, call_frame_t *frame, - call_stub_t *stub, dict_t *dict, fd_t *fd, - br_stub_version_cbk *callback, unsigned long memversion, - int versioningtype, int durable) +br_stub_fd_versioning(xlator_t *this, call_frame_t *frame, call_stub_t *stub, + dict_t *dict, fd_t *fd, br_stub_version_cbk *callback, + unsigned long memversion, int versioningtype, int durable) { - int32_t ret = -1; - int flags = 0; - dict_t *xdata = NULL; - br_stub_local_t *local = NULL; + int32_t ret = -1; + int flags = 0; + dict_t *xdata = NULL; + br_stub_local_t *local = NULL; - xdata = dict_new (); - if (!xdata) - goto done; + xdata = dict_new(); + if (!xdata) + goto done; - ret = dict_set_int32 (xdata, GLUSTERFS_INTERNAL_FOP_KEY, 1); - if (ret) - goto dealloc_xdata; + ret = dict_set_int32(xdata, GLUSTERFS_INTERNAL_FOP_KEY, 1); + if (ret) + goto dealloc_xdata; - if (durable) { - ret = dict_set_int32 (xdata, GLUSTERFS_DURABLE_OP, 0); - if (ret) - goto dealloc_xdata; - } + if (durable) { + ret = dict_set_int32(xdata, GLUSTERFS_DURABLE_OP, 0); + if (ret) + goto dealloc_xdata; + } - local = frame->local; + local = frame->local; - br_stub_fill_local (local, stub, fd, - fd->inode, fd->inode->gfid, - versioningtype, memversion); + br_stub_fill_local(local, stub, fd, fd->inode, fd->inode->gfid, + versioningtype, memversion); - STACK_WIND (frame, callback, - FIRST_CHILD (this), FIRST_CHILD (this)->fops->fsetxattr, - fd, dict, flags, xdata); + STACK_WIND(frame, callback, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); - ret = 0; + ret = 0; - dealloc_xdata: - dict_unref (xdata); - done: - return ret; +dealloc_xdata: + dict_unref(xdata); +done: + return ret; } static int -br_stub_perform_incversioning (xlator_t *this, - call_frame_t *frame, call_stub_t *stub, - fd_t *fd, br_stub_inode_ctx_t *ctx) -{ - int32_t ret = -1; - dict_t *dict = NULL; - br_version_t *obuf = NULL; - unsigned long writeback_version = 0; - int op_errno = 0; - br_stub_local_t *local = NULL; - - op_errno = EINVAL; - local = frame->local; - - writeback_version = __br_stub_writeback_version (ctx); - - op_errno = ENOMEM; - dict = dict_new (); - if (!dict) - goto done; - ret = br_stub_alloc_versions (&obuf, NULL, 0); - if (ret) - goto dealloc_dict; - ret = br_stub_prepare_version_request (this, dict, - obuf, writeback_version); - if (ret) - goto dealloc_versions; - - ret = br_stub_fd_versioning - (this, frame, stub, dict, - fd, br_stub_fd_incversioning_cbk, writeback_version, - BR_STUB_INCREMENTAL_VERSIONING, !WRITEBACK_DURABLE); - - dealloc_versions: - br_stub_dealloc_versions (obuf); - dealloc_dict: - dict_unref (dict); - done: - if (ret) { - if (local) - frame->local = NULL; - call_unwind_error (stub, -1, op_errno); - if (local) { - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - } +br_stub_perform_incversioning(xlator_t *this, call_frame_t *frame, + call_stub_t *stub, fd_t *fd, + br_stub_inode_ctx_t *ctx) +{ + int32_t ret = -1; + dict_t *dict = NULL; + br_version_t *obuf = NULL; + unsigned long writeback_version = 0; + int op_errno = 0; + br_stub_local_t *local = NULL; + + op_errno = EINVAL; + local = frame->local; + + writeback_version = __br_stub_writeback_version(ctx); + + op_errno = ENOMEM; + dict = dict_new(); + if (!dict) + goto out; + ret = br_stub_alloc_versions(&obuf, NULL, 0); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ALLOC_MEM_FAILED, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto out; + } + ret = br_stub_prepare_version_request(this, dict, obuf, writeback_version); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_VERSION_PREPARE_FAIL, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + br_stub_dealloc_versions(obuf); + goto out; + } + + ret = br_stub_fd_versioning( + this, frame, stub, dict, fd, br_stub_fd_incversioning_cbk, + writeback_version, BR_STUB_INCREMENTAL_VERSIONING, !WRITEBACK_DURABLE); +out: + if (dict) + dict_unref(dict); + if (ret) { + if (local) + frame->local = NULL; + call_unwind_error(stub, -1, op_errno); + if (local) { + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); } + } - return ret; + return ret; } /** {{{ */ @@ -748,232 +892,271 @@ br_stub_perform_incversioning (xlator_t *this, /* fsetxattr() */ int32_t -br_stub_perform_objsign (call_frame_t *frame, xlator_t *this, - fd_t *fd, dict_t *dict, int flags, dict_t *xdata) +br_stub_perform_objsign(call_frame_t *frame, xlator_t *this, fd_t *fd, + dict_t *dict, int flags, dict_t *xdata) { - STACK_WIND (frame, default_fsetxattr_cbk, - FIRST_CHILD (this), FIRST_CHILD (this)->fops->fsetxattr, fd, - dict, flags, xdata); + STACK_WIND(frame, default_fsetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); - dict_unref (xdata); - return 0; + dict_unref(xdata); + return 0; } void * -br_stub_signth (void *arg) +br_stub_signth(void *arg) { - xlator_t *this = arg; - br_stub_private_t *priv = this->private; - struct br_stub_signentry *sigstub = NULL; + xlator_t *this = arg; + br_stub_private_t *priv = this->private; + struct br_stub_signentry *sigstub = NULL; - THIS = this; - while (1) { - pthread_mutex_lock (&priv->lock); - { - while (list_empty (&priv->squeue)) - pthread_cond_wait (&priv->cond, &priv->lock); + THIS = this; + while (1) { + /* + * Disabling bit-rot feature leads to this particular thread + * getting cleaned up by reconfigure via a call to the function + * gf_thread_cleanup_xint (which in turn calls pthread_cancel + * and pthread_join). But, if this thread had held the mutex + * &priv->lock at the time of cancellation, then it leads to + * deadlock in future when bit-rot feature is enabled (which + * again spawns this thread which cant hold the lock as the + * mutex is still held by the previous instance of the thread + * which got killed). Also, the br_stub_handle_object_signature + * function which is called whenever file has to be signed + * also gets blocked as it too attempts to acquire &priv->lock. + * + * So, arrange for the lock to be unlocked as part of the + * cleanup of this thread using pthread_cleanup_push and + * pthread_cleanup_pop. + */ + pthread_cleanup_push(br_stub_lock_cleaner, &priv->lock); + pthread_mutex_lock(&priv->lock); + { + while (list_empty(&priv->squeue)) + pthread_cond_wait(&priv->cond, &priv->lock); + + sigstub = list_first_entry(&priv->squeue, struct br_stub_signentry, + list); + list_del_init(&sigstub->list); + } + pthread_mutex_unlock(&priv->lock); + pthread_cleanup_pop(0); - sigstub = list_first_entry - (&priv->squeue, struct br_stub_signentry, list); - list_del_init (&sigstub->list); - } - pthread_mutex_unlock (&priv->lock); + call_resume(sigstub->stub); - call_resume (sigstub->stub); + GF_FREE(sigstub); + } - GF_FREE (sigstub); - } + return NULL; +} + +static gf_boolean_t +br_stub_internal_xattr(dict_t *dict) +{ + if (dict_get(dict, GLUSTERFS_SET_OBJECT_SIGNATURE) || + dict_get(dict, GLUSTERFS_GET_OBJECT_SIGNATURE) || + dict_get(dict, BR_REOPEN_SIGN_HINT_KEY) || + dict_get(dict, BITROT_OBJECT_BAD_KEY) || + dict_get(dict, BITROT_SIGNING_VERSION_KEY) || + dict_get(dict, BITROT_CURRENT_VERSION_KEY)) + return _gf_true; - return NULL; + return _gf_false; } int -orderq (struct list_head *elem1, struct list_head *elem2) +orderq(struct list_head *elem1, struct list_head *elem2) { - struct br_stub_signentry *s1 = NULL; - struct br_stub_signentry *s2 = NULL; + struct br_stub_signentry *s1 = NULL; + struct br_stub_signentry *s2 = NULL; - s1 = list_entry (elem1, struct br_stub_signentry, list); - s2 = list_entry (elem2, struct br_stub_signentry, list); + s1 = list_entry(elem1, struct br_stub_signentry, list); + s2 = list_entry(elem2, struct br_stub_signentry, list); - return (s1->v > s2->v); + return (s1->v > s2->v); } static int -br_stub_compare_sign_version (xlator_t *this, - inode_t *inode, - br_signature_t *sbuf, - dict_t *dict, int *fakesuccess) -{ - int32_t ret = -1; - uint64_t tmp_ctx = 0; - gf_boolean_t invalid = _gf_false; - br_stub_inode_ctx_t *ctx = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, out); - GF_VALIDATE_OR_GOTO (this->name, inode, out); - GF_VALIDATE_OR_GOTO (this->name, sbuf, out); - GF_VALIDATE_OR_GOTO (this->name, dict, out); - - ret = br_stub_get_inode_ctx (this, inode, &tmp_ctx); - if (ret) { - dict_del (dict, BITROT_SIGNING_VERSION_KEY); - goto out; - } - - ctx = (br_stub_inode_ctx_t *)(long)tmp_ctx; - - LOCK (&inode->lock); - { - if (ctx->currentversion < sbuf->signedversion) { - invalid = _gf_true; - } else if (ctx->currentversion > sbuf->signedversion) { - gf_msg_debug (this->name, 0, "\"Signing version\" " - "(%lu) lower than \"Current version \" " - "(%lu)", ctx->currentversion, - sbuf->signedversion); - *fakesuccess = 1; - } - } - UNLOCK (&inode->lock); - - if (invalid) { - ret = -1; - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_SIGN_VERSION_ERROR, "Signing version exceeds " - "current version [%lu > %lu]", sbuf->signedversion, - ctx->currentversion); - } +br_stub_compare_sign_version(xlator_t *this, inode_t *inode, + br_signature_t *sbuf, dict_t *dict, + int *fakesuccess) +{ + int32_t ret = -1; + uint64_t tmp_ctx = 0; + gf_boolean_t invalid = _gf_false; + br_stub_inode_ctx_t *ctx = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, out); + GF_VALIDATE_OR_GOTO(this->name, inode, out); + GF_VALIDATE_OR_GOTO(this->name, sbuf, out); + GF_VALIDATE_OR_GOTO(this->name, dict, out); + + ret = br_stub_get_inode_ctx(this, inode, &tmp_ctx); + if (ret) { + dict_del(dict, BITROT_SIGNING_VERSION_KEY); + goto out; + } + + ctx = (br_stub_inode_ctx_t *)(long)tmp_ctx; + + LOCK(&inode->lock); + { + if (ctx->currentversion < sbuf->signedversion) { + invalid = _gf_true; + } else if (ctx->currentversion > sbuf->signedversion) { + gf_msg_debug(this->name, 0, + "\"Signing version\" " + "(%lu) lower than \"Current version \" " + "(%lu)", + ctx->currentversion, sbuf->signedversion); + *fakesuccess = 1; + } + } + UNLOCK(&inode->lock); + + if (invalid) { + ret = -1; + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_SIGN_VERSION_ERROR, + "Signing-ver=%lu", sbuf->signedversion, "current-ver=%lu", + ctx->currentversion, NULL); + } - out: - return ret; +out: + return ret; } static int -br_stub_prepare_signature (xlator_t *this, - dict_t *dict, inode_t *inode, - br_isignature_t *sign, int *fakesuccess) +br_stub_prepare_signature(xlator_t *this, dict_t *dict, inode_t *inode, + br_isignature_t *sign, int *fakesuccess) { - int32_t ret = 0; - size_t signaturelen = 0; - br_signature_t *sbuf = NULL; + int32_t ret = -1; + size_t signaturelen = 0; + br_signature_t *sbuf = NULL; - if (!br_is_signature_type_valid (sign->signaturetype)) - goto error_return; + if (!br_is_signature_type_valid(sign->signaturetype)) + goto out; - signaturelen = sign->signaturelen; - ret = br_stub_alloc_versions (NULL, &sbuf, signaturelen); - if (ret) - goto error_return; - ret = br_stub_prepare_signing_request (dict, sbuf, sign, signaturelen); - if (ret) - goto dealloc_versions; - - ret = br_stub_compare_sign_version (this, inode, - sbuf, dict, fakesuccess); - if (ret) - goto dealloc_versions; - - return 0; - - dealloc_versions: - br_stub_dealloc_versions (sbuf); - error_return: - return -1; + signaturelen = sign->signaturelen; + ret = br_stub_alloc_versions(NULL, &sbuf, signaturelen); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ALLOC_MEM_FAILED, + "gfid=%s", uuid_utoa(inode->gfid), NULL); + ret = -1; + goto out; + } + ret = br_stub_prepare_signing_request(dict, sbuf, sign, signaturelen); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_SIGN_PREPARE_FAIL, + "gfid=%s", uuid_utoa(inode->gfid), NULL); + ret = -1; + br_stub_dealloc_versions(sbuf); + goto out; + } + + /* At this point sbuf has been added to dict, so the memory will be freed + * when the data from the dict is destroyed + */ + ret = br_stub_compare_sign_version(this, inode, sbuf, dict, fakesuccess); +out: + return ret; } static void -br_stub_handle_object_signature (call_frame_t *frame, - xlator_t *this, fd_t *fd, dict_t *dict, - br_isignature_t *sign, dict_t *xdata) -{ - int32_t ret = -1; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - int fakesuccess = 0; - br_stub_private_t *priv = NULL; - struct br_stub_signentry *sigstub = NULL; - - priv = this->private; - - if (frame->root->pid != GF_CLIENT_PID_BITD) - goto dofop; - - ret = br_stub_prepare_signature (this, dict, - fd->inode, sign, &fakesuccess); - if (ret) - goto dofop; - if (fakesuccess) { - op_ret = op_errno = 0; - goto dofop; - } - - dict_del (dict, GLUSTERFS_SET_OBJECT_SIGNATURE); - - ret = -1; - if (!xdata) { - xdata = dict_new (); - if (!xdata) - goto dofop; - } else { - dict_ref (xdata); - } +br_stub_handle_object_signature(call_frame_t *frame, xlator_t *this, fd_t *fd, + dict_t *dict, br_isignature_t *sign, + dict_t *xdata) +{ + int32_t ret = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + int fakesuccess = 0; + br_stub_private_t *priv = NULL; + struct br_stub_signentry *sigstub = NULL; + + priv = this->private; + + if (frame->root->pid != GF_CLIENT_PID_BITD) { + gf_smsg(this->name, GF_LOG_WARNING, op_errno, BRS_MSG_NON_BITD_PID, + "PID=%d", frame->root->pid, NULL); + goto dofop; + } + + ret = br_stub_prepare_signature(this, dict, fd->inode, sign, &fakesuccess); + if (ret) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_SIGN_PREPARE_FAIL, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto dofop; + } + if (fakesuccess) { + op_ret = op_errno = 0; + goto dofop; + } + + dict_del(dict, GLUSTERFS_SET_OBJECT_SIGNATURE); + + ret = -1; + if (!xdata) { + xdata = dict_new(); + if (!xdata) + goto dofop; + } else { + dict_ref(xdata); + } - ret = dict_set_int32 (xdata, GLUSTERFS_DURABLE_OP, 0); - if (ret) - goto unref_dict; + ret = dict_set_int32(xdata, GLUSTERFS_DURABLE_OP, 0); + if (ret) + goto unref_dict; - /* prepare dispatch stub to order object signing */ - sigstub = GF_CALLOC (1, sizeof (*sigstub), gf_br_stub_mt_sigstub_t); - if (!sigstub) - goto unref_dict; + /* prepare dispatch stub to order object signing */ + sigstub = GF_CALLOC(1, sizeof(*sigstub), gf_br_stub_mt_sigstub_t); + if (!sigstub) + goto unref_dict; - INIT_LIST_HEAD (&sigstub->list); - sigstub->v = ntohl (sign->signedversion); - sigstub->stub = fop_fsetxattr_stub (frame, br_stub_perform_objsign, - fd, dict, 0, xdata); - if (!sigstub->stub) - goto cleanup_stub; + INIT_LIST_HEAD(&sigstub->list); + sigstub->v = ntohl(sign->signedversion); + sigstub->stub = fop_fsetxattr_stub(frame, br_stub_perform_objsign, fd, dict, + 0, xdata); + if (!sigstub->stub) + goto cleanup_stub; - pthread_mutex_lock (&priv->lock); - { - list_add_order (&sigstub->list, &priv->squeue, orderq); - pthread_cond_signal (&priv->cond); - } - pthread_mutex_unlock (&priv->lock); + pthread_mutex_lock(&priv->lock); + { + list_add_order(&sigstub->list, &priv->squeue, orderq); + pthread_cond_signal(&priv->cond); + } + pthread_mutex_unlock(&priv->lock); - return; + return; - cleanup_stub: - GF_FREE (sigstub); - unref_dict: - dict_unref (xdata); - dofop: - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, NULL); +cleanup_stub: + GF_FREE(sigstub); +unref_dict: + dict_unref(xdata); +dofop: + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, NULL); } int32_t -br_stub_fsetxattr_resume (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *xdata) +br_stub_fsetxattr_resume(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, dict_t *xdata) { - int32_t ret = -1; - br_stub_local_t *local = NULL; + int32_t ret = -1; + br_stub_local_t *local = NULL; - local = frame->local; - frame->local = NULL; + local = frame->local; + frame->local = NULL; - ret = br_stub_mark_inode_modified (this, local); - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } + ret = br_stub_mark_inode_modified(this, local); + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, xdata); + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - return 0; + return 0; } /** @@ -1011,65 +1194,62 @@ br_stub_fsetxattr_resume (call_frame_t *frame, void *cookie, xlator_t *this, * } */ static void -br_stub_handle_object_reopen (call_frame_t *frame, - xlator_t *this, fd_t *fd, uint32_t val) -{ - int32_t ret = -1; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - call_stub_t *stub = NULL; - gf_boolean_t inc_version = _gf_false; - gf_boolean_t modified = _gf_false; - br_stub_inode_ctx_t *ctx = NULL; - br_stub_local_t *local = NULL; - gf_boolean_t goback = _gf_true; - - ret = br_stub_need_versioning (this, fd, &inc_version, &modified, &ctx); - if (ret) - goto unwind; - - LOCK (&fd->inode->lock); - { - if ((val == BR_OBJECT_REOPEN) && inc_version) - goback = _gf_false; - if (val == BR_OBJECT_RESIGN && - ctx->info_sign == BR_SIGN_NORMAL) { - __br_stub_mark_inode_synced (ctx); - __br_stub_set_inode_modified (ctx); - } - (void) __br_stub_inode_sign_state (ctx, GF_FOP_FSETXATTR, fd); - } - UNLOCK (&fd->inode->lock); - - if (goback) { - op_ret = op_errno = 0; - goto unwind; - } - - ret = br_stub_versioning_prep (frame, this, fd, ctx); - if (ret) - goto unwind; - local = frame->local; +br_stub_handle_object_reopen(call_frame_t *frame, xlator_t *this, fd_t *fd, + uint32_t val) +{ + int32_t ret = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + call_stub_t *stub = NULL; + gf_boolean_t inc_version = _gf_false; + gf_boolean_t modified = _gf_false; + br_stub_inode_ctx_t *ctx = NULL; + br_stub_local_t *local = NULL; + gf_boolean_t goback = _gf_true; + + ret = br_stub_need_versioning(this, fd, &inc_version, &modified, &ctx); + if (ret) + goto unwind; + + LOCK(&fd->inode->lock); + { + if ((val == BR_OBJECT_REOPEN) && inc_version) + goback = _gf_false; + if (val == BR_OBJECT_RESIGN && ctx->info_sign == BR_SIGN_NORMAL) { + __br_stub_mark_inode_synced(ctx); + __br_stub_set_inode_modified(ctx); + } + (void)__br_stub_inode_sign_state(ctx, GF_FOP_FSETXATTR, fd); + } + UNLOCK(&fd->inode->lock); + + if (goback) { + op_ret = op_errno = 0; + goto unwind; + } + + ret = br_stub_versioning_prep(frame, this, fd, ctx); + if (ret) + goto unwind; + local = frame->local; + + stub = fop_fsetxattr_cbk_stub(frame, br_stub_fsetxattr_resume, 0, 0, NULL); + if (!stub) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, + "fsetxattr gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto cleanup_local; + } + + (void)br_stub_perform_incversioning(this, frame, stub, fd, ctx); + return; + +cleanup_local: + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - stub = fop_fsetxattr_cbk_stub (frame, br_stub_fsetxattr_resume, - 0, 0, NULL); - if (!stub) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, - "failed to allocate stub for fsetxattr fop (gfid: %s)," - " unwinding", uuid_utoa (fd->inode->gfid)); - goto cleanup_local; - } - - (void) br_stub_perform_incversioning (this, frame, stub, fd, ctx); - return; - - cleanup_local: - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - - unwind: - frame->local = NULL; - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, NULL); +unwind: + frame->local = NULL; + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, NULL); } /** @@ -1080,89 +1260,83 @@ br_stub_handle_object_reopen (call_frame_t *frame, * to mark the object as bad. */ int -br_stub_fsetxattr_bad_object_cbk (call_frame_t *frame, void *cookie, - xlator_t *this, int32_t op_ret, - int32_t op_errno, dict_t *xdata) -{ - br_stub_local_t *local = NULL; - int32_t ret = -1; - - local = frame->local; - frame->local = NULL; - - if (op_ret < 0) - goto unwind; - - /* - * What to do if marking the object as bad fails? (i.e. in memory - * marking within the inode context. If we are here means fsetxattr - * fop has succeeded on disk and the bad object xattr has been set). - * We can return failure to scruber, but there is nothing the scrubber - * can do with it (it might assume that the on disk setxattr itself has - * failed). The main purpose of this operation is to help identify the - * bad object by checking the inode context itself (thus avoiding the - * necessity of doing a getxattr fop on the disk). - * - * So as of now, success itself is being returned even though inode - * context set operation fails. - * In future if there is any change in the policy which can handle this, - * then appropriate response should be sent (i.e. success or error). - */ - ret = br_stub_mark_object_bad (this, local->u.context.inode); - if (ret) - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_MARK_FAIL, - "failed to mark object %s as bad", - uuid_utoa (local->u.context.inode->gfid)); - - ret = br_stub_add (this, local->u.context.inode->gfid); +br_stub_fsetxattr_bad_object_cbk(call_frame_t *frame, void *cookie, + xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) +{ + br_stub_local_t *local = NULL; + int32_t ret = -1; + + local = frame->local; + frame->local = NULL; + + if (op_ret < 0) + goto unwind; + + /* + * What to do if marking the object as bad fails? (i.e. in memory + * marking within the inode context. If we are here means fsetxattr + * fop has succeeded on disk and the bad object xattr has been set). + * We can return failure to scruber, but there is nothing the scrubber + * can do with it (it might assume that the on disk setxattr itself has + * failed). The main purpose of this operation is to help identify the + * bad object by checking the inode context itself (thus avoiding the + * necessity of doing a getxattr fop on the disk). + * + * So as of now, success itself is being returned even though inode + * context set operation fails. + * In future if there is any change in the policy which can handle this, + * then appropriate response should be sent (i.e. success or error). + */ + ret = br_stub_mark_object_bad(this, local->u.context.inode); + if (ret) + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_MARK_FAIL, + "gfid=%s", uuid_utoa(local->u.context.inode->gfid), NULL); + + ret = br_stub_add(this, local->u.context.inode->gfid); unwind: - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - return 0; + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, xdata); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); + return 0; } static int32_t -br_stub_handle_bad_object_key (call_frame_t *frame, xlator_t *this, fd_t *fd, - dict_t *dict, int flags, dict_t *xdata) -{ - br_stub_local_t *local = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - - if (frame->root->pid != GF_CLIENT_PID_SCRUB) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_NON_SCRUB_BAD_OBJ_MARK, "bad object marking " - "on %s is not from the scrubber", - uuid_utoa (fd->inode->gfid)); - goto unwind; - } - - local = br_stub_alloc_local (this); - if (!local) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_NO_MEMORY, - "failed to allocate memory for fsetxattr on %s", - uuid_utoa (fd->inode->gfid)); - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } +br_stub_handle_bad_object_key(call_frame_t *frame, xlator_t *this, fd_t *fd, + dict_t *dict, int flags, dict_t *xdata) +{ + br_stub_local_t *local = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + + if (frame->root->pid != GF_CLIENT_PID_SCRUB) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_NON_SCRUB_BAD_OBJ_MARK, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto unwind; + } + + local = br_stub_alloc_local(this); + if (!local) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ALLOC_MEM_FAILED, + "fsetxattr gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + op_ret = -1; + op_errno = ENOMEM; + goto unwind; + } - br_stub_fill_local (local, NULL, fd, fd->inode, - fd->inode->gfid, BR_STUB_NO_VERSIONING, 0); - frame->local = local; + br_stub_fill_local(local, NULL, fd, fd->inode, fd->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + frame->local = local; - STACK_WIND (frame, br_stub_fsetxattr_bad_object_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsetxattr, fd, dict, flags, - xdata); - return 0; + STACK_WIND(frame, br_stub_fsetxattr_bad_object_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, NULL); - return 0; + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, NULL); + return 0; } - /** * As of now, versioning is done by the stub (though as a setxattr * operation) as part of inode modification operations such as writev, @@ -1178,84 +1352,121 @@ unwind: * */ static int32_t -br_stub_handle_internal_xattr (call_frame_t *frame, xlator_t *this, fd_t *fd, - char *key) +br_stub_handle_internal_xattr(call_frame_t *frame, xlator_t *this, fd_t *fd, + char *key) { - int32_t op_ret = -1; - int32_t op_errno = EINVAL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_SET_INTERNAL_XATTR, "setxattr called" - " on the internal xattr %s for inode %s", key, - uuid_utoa (fd->inode->gfid)); + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_SET_INTERNAL_XATTR, + "setxattr key=%s", key, "inode-gfid=%s", uuid_utoa(fd->inode->gfid), + NULL); - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, NULL); - return 0; + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, NULL); + return 0; } -int -br_stub_fsetxattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, dict_t *dict, int flags, dict_t *xdata) -{ - int32_t ret = 0; - uint32_t val = 0; - br_isignature_t *sign = NULL; - - if (!IA_ISREG (fd->inode->ia_type)) - goto wind; - - /* object signature request */ - ret = dict_get_bin (dict, GLUSTERFS_SET_OBJECT_SIGNATURE, - (void **) &sign); - if (!ret) { - br_stub_handle_object_signature (frame, this, - fd, dict, sign, xdata); - goto done; - } - - /* signing xattr */ - if (dict_get(dict, BITROT_SIGNING_VERSION_KEY)) { - br_stub_handle_internal_xattr (frame, this, fd, - BITROT_SIGNING_VERSION_KEY); - goto done; - } - - /* version xattr */ - if (dict_get(dict, BITROT_CURRENT_VERSION_KEY)) { - br_stub_handle_internal_xattr (frame, this, fd, - BITROT_CURRENT_VERSION_KEY); - goto done; - } +static void +br_stub_dump_xattr(xlator_t *this, dict_t *dict, int *op_errno) +{ + char *format = "(%s:%s)"; + char *dump = NULL; + + dump = GF_CALLOC(1, BR_STUB_DUMP_STR_SIZE, gf_br_stub_mt_misc); + if (!dump) { + *op_errno = ENOMEM; + goto out; + } + dict_dump_to_str(dict, dump, BR_STUB_DUMP_STR_SIZE, format); + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_SET_INTERNAL_XATTR, + "fsetxattr dump=%s", dump, NULL); +out: + if (dump) { + GF_FREE(dump); + } + return; +} - if (dict_get (dict, GLUSTERFS_GET_OBJECT_SIGNATURE)) { - br_stub_handle_internal_xattr (frame, this, fd, - GLUSTERFS_GET_OBJECT_SIGNATURE); - goto done; - } +int +br_stub_fsetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *dict, + int flags, dict_t *xdata) +{ + int32_t ret = 0; + uint32_t val = 0; + br_isignature_t *sign = NULL; + br_stub_private_t *priv = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + + priv = this->private; + + if ((frame->root->pid != GF_CLIENT_PID_BITD && + frame->root->pid != GF_CLIENT_PID_SCRUB) && + br_stub_internal_xattr(dict)) { + br_stub_dump_xattr(this, dict, &op_errno); + goto unwind; + } + + if (!priv->do_versioning) + goto wind; + + if (!IA_ISREG(fd->inode->ia_type)) + goto wind; + + /* object signature request */ + ret = dict_get_bin(dict, GLUSTERFS_SET_OBJECT_SIGNATURE, (void **)&sign); + if (!ret) { + gf_msg_debug(this->name, 0, "got SIGNATURE request on %s", + uuid_utoa(fd->inode->gfid)); + br_stub_handle_object_signature(frame, this, fd, dict, sign, xdata); + goto done; + } + + /* signing xattr */ + if (dict_get(dict, BITROT_SIGNING_VERSION_KEY)) { + br_stub_handle_internal_xattr(frame, this, fd, + BITROT_SIGNING_VERSION_KEY); + goto done; + } + + /* version xattr */ + if (dict_get(dict, BITROT_CURRENT_VERSION_KEY)) { + br_stub_handle_internal_xattr(frame, this, fd, + BITROT_CURRENT_VERSION_KEY); + goto done; + } + + if (dict_get(dict, GLUSTERFS_GET_OBJECT_SIGNATURE)) { + br_stub_handle_internal_xattr(frame, this, fd, + GLUSTERFS_GET_OBJECT_SIGNATURE); + goto done; + } + + /* object reopen request */ + ret = dict_get_uint32(dict, BR_REOPEN_SIGN_HINT_KEY, &val); + if (!ret) { + br_stub_handle_object_reopen(frame, this, fd, val); + goto done; + } + + /* handle bad object */ + if (dict_get(dict, BITROT_OBJECT_BAD_KEY)) { + br_stub_handle_bad_object_key(frame, this, fd, dict, flags, xdata); + goto done; + } - /* object reopen request */ - ret = dict_get_uint32 (dict, BR_REOPEN_SIGN_HINT_KEY, &val); - if (!ret) { - br_stub_handle_object_reopen (frame, this, fd, val); - goto done; - } +wind: + STACK_WIND(frame, default_fsetxattr_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fsetxattr, fd, dict, flags, xdata); + return 0; - /* handle bad object */ - if (dict_get (dict, BITROT_OBJECT_BAD_KEY)) { - br_stub_handle_bad_object_key (frame, this, fd, - dict, flags, xdata); - goto done; - } +unwind: + STACK_UNWIND_STRICT(fsetxattr, frame, op_ret, op_errno, NULL); -wind: - STACK_WIND (frame, default_fsetxattr_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fsetxattr, fd, dict, flags, - xdata); done: - return 0; + return 0; } - /** * Currently BitD and scrubber are doing fsetxattr to either sign the object * or to mark it as bad. Hence setxattr on any of those keys is denied directly @@ -1264,95 +1475,76 @@ done: * check has to be added below. */ int -br_stub_setxattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *dict, int flags, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - char dump[64*1024] = {0,}; - char *format = "(%s:%s)"; - - if (dict_get (dict, GLUSTERFS_SET_OBJECT_SIGNATURE) || - dict_get (dict, GLUSTERFS_GET_OBJECT_SIGNATURE) || - dict_get (dict, BR_REOPEN_SIGN_HINT_KEY) || - dict_get (dict, BITROT_OBJECT_BAD_KEY) || - dict_get (dict, BITROT_SIGNING_VERSION_KEY) || - dict_get (dict, BITROT_CURRENT_VERSION_KEY)) { - dict_dump_to_str (dict, dump, sizeof(dump), format); - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_SET_INTERNAL_XATTR, "setxattr called on " - "internal xattr %s", dump); - goto unwind; - } +br_stub_setxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict, + int flags, dict_t *xdata) +{ + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + if (br_stub_internal_xattr(dict)) { + br_stub_dump_xattr(this, dict, &op_errno); + goto unwind; + } - STACK_WIND_TAIL (frame, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->setxattr, loc, dict, flags, - xdata); - return 0; + STACK_WIND_TAIL(frame, FIRST_CHILD(this), FIRST_CHILD(this)->fops->setxattr, + loc, dict, flags, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, NULL); - return 0; + STACK_UNWIND_STRICT(setxattr, frame, op_ret, op_errno, NULL); + return 0; } /** }}} */ - /** {{{ */ /* {f}removexattr() */ int32_t -br_stub_removexattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, const char *name, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - - if (!strcmp (BITROT_OBJECT_BAD_KEY, name) || - !strcmp (BITROT_SIGNING_VERSION_KEY, name) || - !strcmp (BITROT_CURRENT_VERSION_KEY, name)) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_REMOVE_INTERNAL_XATTR, "removexattr called" - " on internal xattr %s for file %s", name, loc->path); - goto unwind; - } - - - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->removexattr, - loc, name, xdata); - return 0; +br_stub_removexattr(call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + + if (!strcmp(BITROT_OBJECT_BAD_KEY, name) || + !strcmp(BITROT_SIGNING_VERSION_KEY, name) || + !strcmp(BITROT_CURRENT_VERSION_KEY, name)) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_REMOVE_INTERNAL_XATTR, + "name=%s", name, "file-path=%s", loc->path, NULL); + goto unwind; + } + + STACK_WIND_TAIL(frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->removexattr, loc, name, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (removexattr, frame, op_ret, op_errno, NULL); - return 0; + STACK_UNWIND_STRICT(removexattr, frame, op_ret, op_errno, NULL); + return 0; } int32_t -br_stub_fremovexattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, const char *name, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - - if (!strcmp (BITROT_OBJECT_BAD_KEY, name) || - !strcmp (BITROT_SIGNING_VERSION_KEY, name) || - !strcmp (BITROT_CURRENT_VERSION_KEY, name)) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_REMOVE_INTERNAL_XATTR, "removexattr called" - " on internal xattr %s for inode %s", name, - uuid_utoa (fd->inode->gfid)); - goto unwind; - } - - - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fremovexattr, - fd, name, xdata); - return 0; +br_stub_fremovexattr(call_frame_t *frame, xlator_t *this, fd_t *fd, + const char *name, dict_t *xdata) +{ + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + + if (!strcmp(BITROT_OBJECT_BAD_KEY, name) || + !strcmp(BITROT_SIGNING_VERSION_KEY, name) || + !strcmp(BITROT_CURRENT_VERSION_KEY, name)) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_REMOVE_INTERNAL_XATTR, + "name=%s", name, "inode-gfid=%s", uuid_utoa(fd->inode->gfid), + NULL); + goto unwind; + } + + STACK_WIND_TAIL(frame, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fremovexattr, fd, name, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (fremovexattr, frame, op_ret, op_errno, NULL); - return 0; + STACK_UNWIND_STRICT(fremovexattr, frame, op_ret, op_errno, NULL); + return 0; } /** }}} */ @@ -1362,17 +1554,17 @@ unwind: /* {f}getxattr() */ int -br_stub_listxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int op_ret, int op_errno, dict_t *xattr, dict_t *xdata) +br_stub_listxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, dict_t *xattr, dict_t *xdata) { - if (op_ret < 0) - goto unwind; + if (op_ret < 0) + goto unwind; - br_stub_remove_vxattrs (xattr); + br_stub_remove_vxattrs(xattr, _gf_true); - unwind: - STACK_UNWIND (frame, op_ret, op_errno, xattr, xdata); - return 0; +unwind: + STACK_UNWIND_STRICT(getxattr, frame, op_ret, op_errno, xattr, xdata); + return 0; } /** @@ -1411,355 +1603,380 @@ br_stub_listxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, * then treat the object as stale. */ char -br_stub_is_object_stale (xlator_t *this, call_frame_t *frame, inode_t *inode, - br_version_t *obuf, br_signature_t *sbuf) -{ - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - char stale = 0; - - if (obuf->ongoingversion == sbuf->signedversion) - goto out; - - if (frame->root->pid == GF_CLIENT_PID_SCRUB) { - stale = 1; - goto out; - } - - ret = br_stub_get_inode_ctx (this, inode, &ctx_addr); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, "failed to get the " - "inode context for %s", uuid_utoa (inode->gfid)); - goto out; - } - - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - - LOCK (&inode->lock); - { - if ((!__br_stub_is_inode_dirty (ctx) && - ctx->info_sign != BR_SIGN_NORMAL) || - __br_stub_is_inode_dirty (ctx)) - stale = 1; - } - UNLOCK (&inode->lock); +br_stub_is_object_stale(xlator_t *this, call_frame_t *frame, inode_t *inode, + br_version_t *obuf, br_signature_t *sbuf) +{ + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + char stale = 0; + + if (obuf->ongoingversion == sbuf->signedversion) + goto out; + + if (frame->root->pid == GF_CLIENT_PID_SCRUB) { + stale = 1; + goto out; + } + + ret = br_stub_get_inode_ctx(this, inode, &ctx_addr); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_GET_INODE_CONTEXT_FAILED, + "gfid=%s", uuid_utoa(inode->gfid), NULL); + goto out; + } + + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + + LOCK(&inode->lock); + { + if ((!__br_stub_is_inode_dirty(ctx) && + ctx->info_sign != BR_SIGN_NORMAL) || + __br_stub_is_inode_dirty(ctx)) + stale = 1; + } + UNLOCK(&inode->lock); out: - return stale; + return stale; } int -br_stub_getxattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int op_ret, int op_errno, dict_t *xattr, dict_t *xdata) -{ - int32_t ret = 0; - size_t totallen = 0; - size_t signaturelen = 0; - br_version_t *obuf = NULL; - br_signature_t *sbuf = NULL; - br_isignature_out_t *sign = NULL; - br_vxattr_status_t status; - br_stub_local_t *local = NULL; - inode_t *inode = NULL; - gf_boolean_t bad_object = _gf_false; - - if (op_ret < 0) - goto unwind; - if (cookie != (void *) BR_STUB_REQUEST_COOKIE) - goto unwind; - - local = frame->local; - frame->local = NULL; - inode = local->u.context.inode; - - op_ret = -1; - status = br_version_xattr_state (xattr, &obuf, &sbuf, &bad_object); - - op_errno = EIO; - if (bad_object) - goto delkeys; - - op_errno = EINVAL; - if (status == BR_VXATTR_STATUS_INVALID) - goto delkeys; - - op_errno = ENODATA; - if ((status == BR_VXATTR_STATUS_MISSING) - || (status == BR_VXATTR_STATUS_UNSIGNED)) - goto delkeys; - - /** - * okay.. we have enough information to satisfy the request, - * namely: version and signing extended attribute. what's - * pending is the signature length -- that's figured out - * indirectly via the size of the _whole_ xattr and the - * on-disk signing xattr header size. - */ - op_errno = EINVAL; - ret = dict_get_uint32 (xattr, BITROT_SIGNING_XATTR_SIZE_KEY, - (uint32_t *)&signaturelen); - if (ret) - goto delkeys; - - signaturelen -= sizeof (br_signature_t); - totallen = sizeof (br_isignature_out_t) + signaturelen; - - op_errno = ENOMEM; - sign = GF_CALLOC (1, totallen, gf_br_stub_mt_signature_t); - if (!sign) - goto delkeys; - - sign->time[0] = obuf->timebuf[0]; - sign->time[1] = obuf->timebuf[1]; - - /* Object's dirty state & current signed version */ - sign->version = sbuf->signedversion; - sign->stale = br_stub_is_object_stale (this, frame, inode, obuf, sbuf); - - /* Object's signature */ - sign->signaturelen = signaturelen; - sign->signaturetype = sbuf->signaturetype; - (void) memcpy (sign->signature, sbuf->signature, signaturelen); - +br_stub_getxattr_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, dict_t *xattr, dict_t *xdata) +{ + int32_t ret = 0; + size_t totallen = 0; + size_t signaturelen = 0; + br_stub_private_t *priv = NULL; + br_version_t *obuf = NULL; + br_signature_t *sbuf = NULL; + br_isignature_out_t *sign = NULL; + br_vxattr_status_t status; + br_stub_local_t *local = NULL; + inode_t *inode = NULL; + gf_boolean_t bad_object = _gf_false; + gf_boolean_t ver_enabled = _gf_false; + + BR_STUB_VER_ENABLED_IN_CALLPATH(frame, ver_enabled); + priv = this->private; + + if (op_ret < 0) + goto unwind; + BR_STUB_VER_COND_GOTO(priv, (!ver_enabled), delkeys); + + if (cookie != (void *)BR_STUB_REQUEST_COOKIE) + goto unwind; + + local = frame->local; + frame->local = NULL; + if (!local) { + op_ret = -1; op_errno = EINVAL; - ret = dict_set_bin (xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, - (void *)sign, totallen); - if (ret < 0) { - GF_FREE (sign); - goto delkeys; - } - op_errno = 0; - op_ret = totallen; - - delkeys: - br_stub_remove_vxattrs (xattr); + goto unwind; + } + inode = local->u.context.inode; + + op_ret = -1; + status = br_version_xattr_state(xattr, &obuf, &sbuf, &bad_object); + + op_errno = EIO; + if (bad_object) + goto delkeys; + + op_errno = EINVAL; + if (status == BR_VXATTR_STATUS_INVALID) + goto delkeys; + + op_errno = ENODATA; + if ((status == BR_VXATTR_STATUS_MISSING) || + (status == BR_VXATTR_STATUS_UNSIGNED)) + goto delkeys; + + /** + * okay.. we have enough information to satisfy the request, + * namely: version and signing extended attribute. what's + * pending is the signature length -- that's figured out + * indirectly via the size of the _whole_ xattr and the + * on-disk signing xattr header size. + */ + op_errno = EINVAL; + ret = dict_get_uint32(xattr, BITROT_SIGNING_XATTR_SIZE_KEY, + (uint32_t *)&signaturelen); + if (ret) + goto delkeys; + + signaturelen -= sizeof(br_signature_t); + totallen = sizeof(br_isignature_out_t) + signaturelen; + + op_errno = ENOMEM; + sign = GF_CALLOC(1, totallen, gf_br_stub_mt_signature_t); + if (!sign) + goto delkeys; + + sign->time[0] = obuf->timebuf[0]; + sign->time[1] = obuf->timebuf[1]; + + /* Object's dirty state & current signed version */ + sign->version = sbuf->signedversion; + sign->stale = br_stub_is_object_stale(this, frame, inode, obuf, sbuf); + + /* Object's signature */ + sign->signaturelen = signaturelen; + sign->signaturetype = sbuf->signaturetype; + (void)memcpy(sign->signature, sbuf->signature, signaturelen); + + op_errno = EINVAL; + ret = dict_set_bin(xattr, GLUSTERFS_GET_OBJECT_SIGNATURE, (void *)sign, + totallen); + if (ret < 0) { + GF_FREE(sign); + goto delkeys; + } + op_errno = 0; + op_ret = totallen; + +delkeys: + br_stub_remove_vxattrs(xattr, _gf_true); - unwind: - STACK_UNWIND (frame, op_ret, op_errno, xattr, xdata); - if (local) { - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - } - return 0; +unwind: + STACK_UNWIND_STRICT(getxattr, frame, op_ret, op_errno, xattr, xdata); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); + return 0; } static void -br_stub_send_stub_init_time (call_frame_t *frame, xlator_t *this) +br_stub_send_stub_init_time(call_frame_t *frame, xlator_t *this) { - int op_ret = 0; - int op_errno = 0; - dict_t *xattr = NULL; - br_stub_init_t stub = {{0,},}; - br_stub_private_t *priv = NULL; + int op_ret = 0; + int op_errno = 0; + dict_t *xattr = NULL; + br_stub_init_t stub = { + { + 0, + }, + }; + br_stub_private_t *priv = NULL; - priv = this->private; + priv = this->private; - xattr = dict_new (); - if (!xattr) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } + xattr = dict_new(); + if (!xattr) { + op_ret = -1; + op_errno = ENOMEM; + goto unwind; + } - stub.timebuf[0] = priv->boot[0]; - stub.timebuf[1] = priv->boot[1]; - memcpy (stub.export, priv->export, strlen (priv->export) + 1); + stub.timebuf[0] = priv->boot[0]; + stub.timebuf[1] = priv->boot[1]; + memcpy(stub.export, priv->export, strlen(priv->export) + 1); - op_ret = dict_set_static_bin (xattr, GLUSTERFS_GET_BR_STUB_INIT_TIME, - (void *) &stub, sizeof (br_stub_init_t)); - if (op_ret < 0) { - op_errno = EINVAL; - goto unwind; - } + op_ret = dict_set_static_bin(xattr, GLUSTERFS_GET_BR_STUB_INIT_TIME, + (void *)&stub, sizeof(br_stub_init_t)); + if (op_ret < 0) { + op_errno = EINVAL; + goto unwind; + } - op_ret = sizeof (br_stub_init_t); + op_ret = sizeof(br_stub_init_t); - unwind: - STACK_UNWIND (frame, op_ret, op_errno, xattr, NULL); +unwind: + STACK_UNWIND_STRICT(getxattr, frame, op_ret, op_errno, xattr, NULL); - if (xattr) - dict_unref (xattr); + if (xattr) + dict_unref(xattr); } int -br_stub_getxattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, const char *name, dict_t *xdata) -{ - void *cookie = NULL; - uuid_t rootgfid = {0, }; - fop_getxattr_cbk_t cbk = br_stub_getxattr_cbk; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - br_stub_local_t *local = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc->inode, unwind); - - rootgfid[15] = 1; - - if (!name) { - cbk = br_stub_listxattr_cbk; - goto wind; - } - - /** - * If xattr is node-uuid and the inode is marked bad, return EIO. - * Returning EIO would result in AFR to choose correct node-uuid - * coresponding to the subvolume * where the good copy of the - * file resides. - */ - if (IA_ISREG (loc->inode->ia_type) && XATTR_IS_NODE_UUID (name) && - br_stub_check_bad_object (this, loc->inode, &op_ret, &op_errno)) { - goto unwind; - } - - if (br_stub_is_internal_xattr (name)) - goto unwind; - - /** - * this special extended attribute is allowed only on root - */ - if (name - && (strncmp (name, GLUSTERFS_GET_BR_STUB_INIT_TIME, - strlen (GLUSTERFS_GET_BR_STUB_INIT_TIME)) == 0) - && ((gf_uuid_compare (loc->gfid, rootgfid) == 0) - || (gf_uuid_compare (loc->inode->gfid, rootgfid) == 0))) { - br_stub_send_stub_init_time (frame, this); - return 0; +br_stub_getxattr(call_frame_t *frame, xlator_t *this, loc_t *loc, + const char *name, dict_t *xdata) +{ + void *cookie = NULL; + static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}; + fop_getxattr_cbk_t cbk = br_stub_getxattr_cbk; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + br_stub_local_t *local = NULL; + br_stub_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc->inode, unwind); + + if (!name) { + cbk = br_stub_listxattr_cbk; + goto wind; + } + + if (br_stub_is_internal_xattr(name)) + goto unwind; + + priv = this->private; + BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, wind); + + /** + * If xattr is node-uuid and the inode is marked bad, return EIO. + * Returning EIO would result in AFR to choose correct node-uuid + * corresponding to the subvolume * where the good copy of the + * file resides. + */ + if (IA_ISREG(loc->inode->ia_type) && XATTR_IS_NODE_UUID(name) && + br_stub_check_bad_object(this, loc->inode, &op_ret, &op_errno)) { + goto unwind; + } + + /** + * this special extended attribute is allowed only on root + */ + if (name && + (strncmp(name, GLUSTERFS_GET_BR_STUB_INIT_TIME, + sizeof(GLUSTERFS_GET_BR_STUB_INIT_TIME) - 1) == 0) && + ((gf_uuid_compare(loc->gfid, rootgfid) == 0) || + (gf_uuid_compare(loc->inode->gfid, rootgfid) == 0))) { + BR_STUB_RESET_LOCAL_NULL(frame); + br_stub_send_stub_init_time(frame, this); + return 0; + } + + if (!IA_ISREG(loc->inode->ia_type)) + goto wind; + + if (name && (strncmp(name, GLUSTERFS_GET_OBJECT_SIGNATURE, + sizeof(GLUSTERFS_GET_OBJECT_SIGNATURE) - 1) == 0)) { + cookie = (void *)BR_STUB_REQUEST_COOKIE; + + local = br_stub_alloc_local(this); + if (!local) { + op_ret = -1; + op_errno = ENOMEM; + goto unwind; } - if (!IA_ISREG (loc->inode->ia_type)) - goto wind; - - if (name && (strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE, - strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0)) { - cookie = (void *) BR_STUB_REQUEST_COOKIE; - - local = br_stub_alloc_local (this); - if (!local) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - - br_stub_fill_local (local, NULL, NULL, loc->inode, - loc->inode->gfid, - BR_STUB_NO_VERSIONING, 0); - frame->local = local; - } + br_stub_fill_local(local, NULL, NULL, loc->inode, loc->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + frame->local = local; + } - wind: - STACK_WIND_COOKIE - (frame, cbk, cookie, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->getxattr, loc, name, xdata); - return 0; +wind: + STACK_WIND_COOKIE(frame, cbk, cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->getxattr, loc, name, xdata); + return 0; unwind: - STACK_UNWIND (frame, op_ret, op_errno, NULL, NULL); - return 0; + BR_STUB_RESET_LOCAL_NULL(frame); + STACK_UNWIND_STRICT(getxattr, frame, op_ret, op_errno, NULL, NULL); + return 0; } int -br_stub_fgetxattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, const char *name, dict_t *xdata) -{ - void *cookie = NULL; - uuid_t rootgfid = {0, }; - fop_fgetxattr_cbk_t cbk = br_stub_getxattr_cbk; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - br_stub_local_t *local = NULL; - - rootgfid[15] = 1; - - if (!name) { - cbk = br_stub_listxattr_cbk; - goto wind; - } - - /** - * If xattr is node-uuid and the inode is marked bad, return EIO. - * Returning EIO would result in AFR to choose correct node-uuid - * coresponding to the subvolume * where the good copy of the - * file resides. - */ - if (IA_ISREG (fd->inode->ia_type) && XATTR_IS_NODE_UUID (name) && - br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno)) { - goto unwind; - } - - if (br_stub_is_internal_xattr (name)) - goto unwind; - - /** - * this special extended attribute is allowed only on root - */ - if (name - && (strncmp (name, GLUSTERFS_GET_BR_STUB_INIT_TIME, - strlen (GLUSTERFS_GET_BR_STUB_INIT_TIME)) == 0) - && (gf_uuid_compare (fd->inode->gfid, rootgfid) == 0)) { - br_stub_send_stub_init_time (frame, this); - return 0; +br_stub_fgetxattr(call_frame_t *frame, xlator_t *this, fd_t *fd, + const char *name, dict_t *xdata) +{ + void *cookie = NULL; + static uuid_t rootgfid = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}; + fop_fgetxattr_cbk_t cbk = br_stub_getxattr_cbk; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + br_stub_local_t *local = NULL; + br_stub_private_t *priv = NULL; + + priv = this->private; + + if (!name) { + cbk = br_stub_listxattr_cbk; + goto wind; + } + + if (br_stub_is_internal_xattr(name)) + goto unwind; + + BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, wind); + + /** + * If xattr is node-uuid and the inode is marked bad, return EIO. + * Returning EIO would result in AFR to choose correct node-uuid + * corresponding to the subvolume * where the good copy of the + * file resides. + */ + if (IA_ISREG(fd->inode->ia_type) && XATTR_IS_NODE_UUID(name) && + br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno)) { + goto unwind; + } + + /** + * this special extended attribute is allowed only on root + */ + if (name && + (strncmp(name, GLUSTERFS_GET_BR_STUB_INIT_TIME, + sizeof(GLUSTERFS_GET_BR_STUB_INIT_TIME) - 1) == 0) && + (gf_uuid_compare(fd->inode->gfid, rootgfid) == 0)) { + BR_STUB_RESET_LOCAL_NULL(frame); + br_stub_send_stub_init_time(frame, this); + return 0; + } + + if (!IA_ISREG(fd->inode->ia_type)) + goto wind; + + if (name && (strncmp(name, GLUSTERFS_GET_OBJECT_SIGNATURE, + sizeof(GLUSTERFS_GET_OBJECT_SIGNATURE) - 1) == 0)) { + cookie = (void *)BR_STUB_REQUEST_COOKIE; + + local = br_stub_alloc_local(this); + if (!local) { + op_ret = -1; + op_errno = ENOMEM; + goto unwind; } - if (!IA_ISREG (fd->inode->ia_type)) - goto wind; - - if (name && (strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE, - strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0)) { - cookie = (void *) BR_STUB_REQUEST_COOKIE; - - local = br_stub_alloc_local (this); - if (!local) { - op_ret = -1; - op_errno = ENOMEM; - goto unwind; - } - - br_stub_fill_local (local, NULL, fd, fd->inode, - fd->inode->gfid, - BR_STUB_NO_VERSIONING, 0); - frame->local = local; - } + br_stub_fill_local(local, NULL, fd, fd->inode, fd->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + frame->local = local; + } - wind: - STACK_WIND_COOKIE - (frame, cbk, cookie, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->fgetxattr, fd, name, xdata); - return 0; +wind: + STACK_WIND_COOKIE(frame, cbk, cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->fgetxattr, fd, name, xdata); + return 0; unwind: - STACK_UNWIND (frame, op_ret, op_errno, NULL, NULL); - return 0; + BR_STUB_RESET_LOCAL_NULL(frame); + STACK_UNWIND_STRICT(fgetxattr, frame, op_ret, op_errno, NULL, NULL); + return 0; } int32_t -br_stub_readv (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata) +br_stub_readv(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, uint32_t flags, dict_t *xdata) { - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - int32_t ret = -1; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + int32_t ret = -1; + br_stub_private_t *priv = NULL; - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, frame, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd->inode, unwind); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, frame, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd->inode, unwind); - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; + priv = this->private; + if (!priv->do_versioning) + goto wind; - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->readv, fd, size, offset, - flags, xdata); - return 0; + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + +wind: + STACK_WIND_TAIL(frame, FIRST_CHILD(this), FIRST_CHILD(this)->fops->readv, + fd, size, offset, flags, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, NULL, 0, NULL, - NULL, NULL); - return 0; + STACK_UNWIND_STRICT(readv, frame, op_ret, op_errno, NULL, 0, NULL, NULL, + NULL); + return 0; } /** @@ -1770,287 +1987,294 @@ unwind: * fds. */ int32_t -br_stub_writev_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf, dict_t *xdata) +br_stub_writev_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - int32_t ret = 0; - br_stub_local_t *local = NULL; + int32_t ret = 0; + br_stub_local_t *local = NULL; - local = frame->local; - frame->local = NULL; + local = frame->local; + frame->local = NULL; - if (op_ret < 0) - goto unwind; + if (op_ret < 0) + goto unwind; - ret = br_stub_mark_inode_modified (this, local); - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } + ret = br_stub_mark_inode_modified(this, local); + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } unwind: - STACK_UNWIND_STRICT (writev, frame, - op_ret, op_errno, prebuf, postbuf, xdata); + STACK_UNWIND_STRICT(writev, frame, op_ret, op_errno, prebuf, postbuf, + xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - return 0; + return 0; } int32_t -br_stub_writev_resume (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iovec *vector, int32_t count, off_t offset, - uint32_t flags, struct iobref *iobref, dict_t *xdata) +br_stub_writev_resume(call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iovec *vector, int32_t count, off_t offset, + uint32_t flags, struct iobref *iobref, dict_t *xdata) { - STACK_WIND (frame, br_stub_writev_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->writev, fd, vector, count, - offset, flags, iobref, xdata); - return 0; + STACK_WIND(frame, br_stub_writev_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->writev, fd, vector, count, offset, + flags, iobref, xdata); + return 0; } /** * This is probably the most crucial part about the whole versioning thing. * There's absolutely no differentiation as such between an anonymous fd * and a regular fd except the fd context initialization. Object versioning - * is perfomed when the inode is dirty. Parallel write operations are no + * is performed when the inode is dirty. Parallel write operations are no * special with each write performing object versioning followed by marking * the inode as non-dirty (synced). This is followed by the actual operation * (writev() in this case) which on a success marks the inode as modified. * This prevents signing of objects that have not been modified. */ int32_t -br_stub_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iovec *vector, int32_t count, off_t offset, - uint32_t flags, struct iobref *iobref, dict_t *xdata) -{ - call_stub_t *stub = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - gf_boolean_t inc_version = _gf_false; - gf_boolean_t modified = _gf_false; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - fop_writev_cbk_t cbk = default_writev_cbk; - br_stub_local_t *local = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, frame, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd, unwind); - - ret = br_stub_need_versioning (this, fd, &inc_version, &modified, &ctx); - if (ret) - goto unwind; - - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; +br_stub_writev(call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iovec *vector, int32_t count, off_t offset, + uint32_t flags, struct iobref *iobref, dict_t *xdata) +{ + call_stub_t *stub = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + gf_boolean_t inc_version = _gf_false; + gf_boolean_t modified = _gf_false; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + fop_writev_cbk_t cbk = default_writev_cbk; + br_stub_local_t *local = NULL; + br_stub_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, frame, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd, unwind); + + priv = this->private; + if (!priv->do_versioning) + goto wind; + + ret = br_stub_need_versioning(this, fd, &inc_version, &modified, &ctx); + if (ret) + goto unwind; + + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + + /** + * The inode is not dirty and also witnessed at least one successful + * modification operation. Therefore, subsequent operations need not + * perform any special tracking. + */ + if (!inc_version && modified) + goto wind; + + /** + * okay.. so, either the inode needs versioning or the modification + * needs to be tracked. ->cbk is set to the appropriate callback + * routine for this. + * NOTE: ->local needs to be deallocated on failures from here on. + */ + ret = br_stub_versioning_prep(frame, this, fd, ctx); + if (ret) + goto unwind; + + local = frame->local; + if (!inc_version) { + br_stub_fill_local(local, NULL, fd, fd->inode, fd->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + cbk = br_stub_writev_cbk; + goto wind; + } + + stub = fop_writev_stub(frame, br_stub_writev_resume, fd, vector, count, + offset, flags, iobref, xdata); + + if (!stub) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, + "write gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto cleanup_local; + } + + /* Perform Versioning */ + return br_stub_perform_incversioning(this, frame, stub, fd, ctx); - /** - * The inode is not dirty and also witnessed atleast one successful - * modification operation. Therefore, subsequent operations need not - * perform any special tracking. - */ - if (!inc_version && modified) - goto wind; - - /** - * okay.. so, either the inode needs versioning or the modification - * needs to be tracked. ->cbk is set to the appropriate callback - * routine for this. - * NOTE: ->local needs to be deallocated on failures from here on. - */ - ret = br_stub_versioning_prep (frame, this, fd, ctx); - if (ret) - goto unwind; - - local = frame->local; - if (!inc_version) { - br_stub_fill_local (local, NULL, fd, fd->inode, - fd->inode->gfid, BR_STUB_NO_VERSIONING, 0); - cbk = br_stub_writev_cbk; - goto wind; - } - - stub = fop_writev_stub (frame, br_stub_writev_resume, fd, vector, count, - offset, flags, iobref, xdata); - - if (!stub) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, - "failed to allocate stub for write fop (gfid: %s), " - "unwinding", uuid_utoa (fd->inode->gfid)); - goto cleanup_local; - } - - /* Perform Versioning */ - return br_stub_perform_incversioning (this, frame, stub, fd, ctx); - - wind: - STACK_WIND (frame, cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->writev, - fd, vector, count, offset, flags, iobref, xdata); - return 0; +wind: + STACK_WIND(frame, cbk, FIRST_CHILD(this), FIRST_CHILD(this)->fops->writev, + fd, vector, count, offset, flags, iobref, xdata); + return 0; - cleanup_local: - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); +cleanup_local: + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - unwind: - frame->local = NULL; - STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, NULL, NULL, - NULL); +unwind: + frame->local = NULL; + STACK_UNWIND_STRICT(writev, frame, op_ret, op_errno, NULL, NULL, NULL); - return 0; + return 0; } int32_t -br_stub_ftruncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf, dict_t *xdata) +br_stub_ftruncate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - int32_t ret = -1; - br_stub_local_t *local = NULL; + int32_t ret = -1; + br_stub_local_t *local = NULL; - local = frame->local; - frame->local = NULL; + local = frame->local; + frame->local = NULL; - if (op_ret < 0) - goto unwind; + if (op_ret < 0) + goto unwind; - ret = br_stub_mark_inode_modified (this, local); - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } + ret = br_stub_mark_inode_modified(this, local); + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } unwind: - STACK_UNWIND_STRICT (ftruncate, frame, - op_ret, op_errno, prebuf, postbuf, xdata); + STACK_UNWIND_STRICT(ftruncate, frame, op_ret, op_errno, prebuf, postbuf, + xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - return 0; + return 0; } int32_t -br_stub_ftruncate_resume (call_frame_t *frame, xlator_t *this, fd_t *fd, - off_t offset, dict_t *xdata) +br_stub_ftruncate_resume(call_frame_t *frame, xlator_t *this, fd_t *fd, + off_t offset, dict_t *xdata) { - STACK_WIND (frame, br_stub_ftruncate_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); - return 0; + STACK_WIND(frame, br_stub_ftruncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); + return 0; } /* c.f. br_stub_writev() for explanation */ int32_t -br_stub_ftruncate (call_frame_t *frame, xlator_t *this, fd_t *fd, - off_t offset, dict_t *xdata) -{ - br_stub_local_t *local = NULL; - call_stub_t *stub = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - gf_boolean_t inc_version = _gf_false; - gf_boolean_t modified = _gf_false; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - fop_ftruncate_cbk_t cbk = default_ftruncate_cbk; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, frame, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd, unwind); - - ret = br_stub_need_versioning (this, fd, &inc_version, &modified, &ctx); - if (ret) - goto unwind; - - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; - - if (!inc_version && modified) - goto wind; - - ret = br_stub_versioning_prep (frame, this, fd, ctx); - if (ret) - goto unwind; - - local = frame->local; - if (!inc_version) { - br_stub_fill_local (local, NULL, fd, fd->inode, - fd->inode->gfid, BR_STUB_NO_VERSIONING, 0); - cbk = br_stub_ftruncate_cbk; - goto wind; - } - - stub = fop_ftruncate_stub (frame, br_stub_ftruncate_resume, fd, offset, - xdata); - if (!stub) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, - "failed to allocate stub for ftruncate fop (gfid: %s)," - " unwinding", uuid_utoa (fd->inode->gfid)); - goto cleanup_local; - } - - return br_stub_perform_incversioning (this, frame, stub, fd, ctx); +br_stub_ftruncate(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, + dict_t *xdata) +{ + br_stub_local_t *local = NULL; + call_stub_t *stub = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + gf_boolean_t inc_version = _gf_false; + gf_boolean_t modified = _gf_false; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + fop_ftruncate_cbk_t cbk = default_ftruncate_cbk; + br_stub_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, frame, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd, unwind); + + priv = this->private; + if (!priv->do_versioning) + goto wind; + + ret = br_stub_need_versioning(this, fd, &inc_version, &modified, &ctx); + if (ret) + goto unwind; + + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + + if (!inc_version && modified) + goto wind; + + ret = br_stub_versioning_prep(frame, this, fd, ctx); + if (ret) + goto unwind; + + local = frame->local; + if (!inc_version) { + br_stub_fill_local(local, NULL, fd, fd->inode, fd->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + cbk = br_stub_ftruncate_cbk; + goto wind; + } + + stub = fop_ftruncate_stub(frame, br_stub_ftruncate_resume, fd, offset, + xdata); + if (!stub) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, + "ftruncate gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto cleanup_local; + } + + return br_stub_perform_incversioning(this, frame, stub, fd, ctx); - wind: - STACK_WIND (frame, cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); - return 0; +wind: + STACK_WIND(frame, cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ftruncate, fd, offset, xdata); + return 0; - cleanup_local: - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); +cleanup_local: + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); - unwind: - frame->local = NULL; - STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, NULL, NULL, - NULL); +unwind: + frame->local = NULL; + STACK_UNWIND_STRICT(ftruncate, frame, op_ret, op_errno, NULL, NULL, NULL); - return 0; + return 0; } int32_t -br_stub_truncate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, struct iatt *prebuf, - struct iatt *postbuf, dict_t *xdata) +br_stub_truncate_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int32_t op_ret, int32_t op_errno, struct iatt *prebuf, + struct iatt *postbuf, dict_t *xdata) { - int32_t ret = 0; - br_stub_local_t *local = NULL; + int32_t ret = 0; + br_stub_local_t *local = NULL; - local = frame->local; - frame->local = NULL; + local = frame->local; + frame->local = NULL; - if (op_ret < 0) - goto unwind; + if (op_ret < 0) + goto unwind; - ret = br_stub_mark_inode_modified (this, local); - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } + ret = br_stub_mark_inode_modified(this, local); + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } unwind: - STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, prebuf, postbuf, - xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - return 0; + STACK_UNWIND_STRICT(truncate, frame, op_ret, op_errno, prebuf, postbuf, + xdata); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); + return 0; } int32_t -br_stub_truncate_resume (call_frame_t *frame, xlator_t *this, loc_t *loc, - off_t offset, dict_t *xdata) +br_stub_truncate_resume(call_frame_t *frame, xlator_t *this, loc_t *loc, + off_t offset, dict_t *xdata) { - br_stub_local_t *local = frame->local; + br_stub_local_t *local = frame->local; - fd_unref (local->u.context.fd); - STACK_WIND (frame, br_stub_ftruncate_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); - return 0; + fd_unref(local->u.context.fd); + STACK_WIND(frame, br_stub_ftruncate_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); + return 0; } /** @@ -2068,90 +2292,92 @@ br_stub_truncate_resume (call_frame_t *frame, xlator_t *this, loc_t *loc, * c.f. br_writev_cbk() for explanation */ int32_t -br_stub_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, - off_t offset, dict_t *xdata) -{ - br_stub_local_t *local = NULL; - call_stub_t *stub = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - gf_boolean_t inc_version = _gf_false; - gf_boolean_t modified = _gf_false; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - fd_t *fd = NULL; - fop_truncate_cbk_t cbk = default_truncate_cbk; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, frame, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc->inode, unwind); - - fd = fd_anonymous (loc->inode); - if (!fd) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_CREATE_ANONYMOUS_FD_FAILED, "failed to create " - "anonymous fd for the inode %s", - uuid_utoa (loc->inode->gfid)); - goto unwind; - } - - ret = br_stub_need_versioning (this, fd, &inc_version, &modified, &ctx); - if (ret) - goto cleanup_fd; - - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; - - if (!inc_version && modified) - goto wind; - - ret = br_stub_versioning_prep (frame, this, fd, ctx); - if (ret) - goto cleanup_fd; - - local = frame->local; - if (!inc_version) { - br_stub_fill_local (local, NULL, fd, fd->inode, - fd->inode->gfid, BR_STUB_NO_VERSIONING, 0); - cbk = br_stub_truncate_cbk; - goto wind; - } - - stub = fop_truncate_stub (frame, br_stub_truncate_resume, loc, offset, - xdata); - if (!stub) { - gf_msg (this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, - "failed to allocate stub for truncate fop (gfid: %s), " - "unwinding", uuid_utoa (fd->inode->gfid)); - goto cleanup_local; - } - - return br_stub_perform_incversioning (this, frame, stub, fd, ctx); +br_stub_truncate(call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset, + dict_t *xdata) +{ + br_stub_local_t *local = NULL; + call_stub_t *stub = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + gf_boolean_t inc_version = _gf_false; + gf_boolean_t modified = _gf_false; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + fd_t *fd = NULL; + fop_truncate_cbk_t cbk = default_truncate_cbk; + br_stub_private_t *priv = NULL; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, frame, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc->inode, unwind); + + priv = this->private; + if (!priv->do_versioning) + goto wind; + + fd = fd_anonymous(loc->inode); + if (!fd) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_CREATE_ANONYMOUS_FD_FAILED, + "inode-gfid=%s", uuid_utoa(loc->inode->gfid), NULL); + goto unwind; + } + + ret = br_stub_need_versioning(this, fd, &inc_version, &modified, &ctx); + if (ret) + goto cleanup_fd; + + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + + if (!inc_version && modified) + goto wind; + + ret = br_stub_versioning_prep(frame, this, fd, ctx); + if (ret) + goto cleanup_fd; + + local = frame->local; + if (!inc_version) { + br_stub_fill_local(local, NULL, fd, fd->inode, fd->inode->gfid, + BR_STUB_NO_VERSIONING, 0); + cbk = br_stub_truncate_cbk; + goto wind; + } + + stub = fop_truncate_stub(frame, br_stub_truncate_resume, loc, offset, + xdata); + if (!stub) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_STUB_ALLOC_FAILED, + "truncate gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto cleanup_local; + } - wind: - STACK_WIND (frame, cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->truncate, loc, offset, xdata); - fd_unref (fd); - return 0; + return br_stub_perform_incversioning(this, frame, stub, fd, ctx); - cleanup_local: - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - cleanup_fd: - fd_unref (fd); - unwind: - frame->local = NULL; - STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, NULL, NULL, - NULL); +wind: + STACK_WIND(frame, cbk, FIRST_CHILD(this), FIRST_CHILD(this)->fops->truncate, + loc, offset, xdata); + if (fd) + fd_unref(fd); + return 0; + +cleanup_local: + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); +cleanup_fd: + fd_unref(fd); +unwind: + frame->local = NULL; + STACK_UNWIND_STRICT(truncate, frame, op_ret, op_errno, NULL, NULL, NULL); - return 0; + return 0; } /** }}} */ - /** {{{ */ /* open() */ @@ -2171,62 +2397,70 @@ br_stub_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, */ int -br_stub_open (call_frame_t *frame, xlator_t *this, - loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata) -{ - int32_t ret = -1; - br_stub_inode_ctx_t *ctx = NULL; - uint64_t ctx_addr = 0; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd->inode, unwind); - - ret = br_stub_get_inode_ctx (this, fd->inode, &ctx_addr); +br_stub_open(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + fd_t *fd, dict_t *xdata) +{ + int32_t ret = -1; + br_stub_inode_ctx_t *ctx = NULL; + uint64_t ctx_addr = 0; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + br_stub_private_t *priv = NULL; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; + + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, this->private, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd->inode, unwind); + + priv = this->private; + + if (!priv->do_versioning) + goto wind; + + ret = br_stub_get_inode_ctx(this, fd->inode, &ctx_addr); + if (ret) { + ret = br_stub_init_inode_versions(this, fd, fd->inode, version, + _gf_true, _gf_false, &ctx_addr); if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, "failed to get the " - "inode context for the file %s (gfid: %s)", loc->path, - uuid_utoa (fd->inode->gfid)); - goto unwind; + gf_smsg(this->name, GF_LOG_ERROR, 0, + BRS_MSG_GET_INODE_CONTEXT_FAILED, "path=%s", loc->path, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto unwind; } + } - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; - if (frame->root->pid == GF_CLIENT_PID_SCRUB) - goto wind; + if (frame->root->pid == GF_CLIENT_PID_SCRUB) + goto wind; - if (flags == O_RDONLY) - goto wind; + if (flags == O_RDONLY) + goto wind; - ret = br_stub_add_fd_to_inode (this, fd, ctx); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_ADD_FD_TO_LIST_FAILED, - "failed add fd to the list (gfid: %s)", - uuid_utoa (fd->inode->gfid)); - goto unwind; - } + ret = br_stub_add_fd_to_inode(this, fd, ctx); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_ADD_FD_TO_LIST_FAILED, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto unwind; + } wind: - STACK_WIND (frame, default_open_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->open, loc, flags, fd, xdata); - return 0; + STACK_WIND(frame, default_open_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->open, loc, flags, fd, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, NULL, NULL); - return 0; + STACK_UNWIND_STRICT(open, frame, op_ret, op_errno, NULL, NULL); + return 0; } /** }}} */ - /** {{{ */ /* creat() */ @@ -2236,130 +2470,137 @@ unwind: * fd to the inode context fd tracking list. */ int32_t -br_stub_add_fd_to_inode (xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx) +br_stub_add_fd_to_inode(xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx) { - int32_t ret = -1; - br_stub_fd_t *br_stub_fd = NULL; + int32_t ret = -1; + br_stub_fd_t *br_stub_fd = NULL; - ret = br_stub_require_release_call (this, fd, &br_stub_fd); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_SET_FD_CONTEXT_FAILED, "failed to set the fd " - "context for the file (gfid: %s)", - uuid_utoa (fd->inode->gfid)); - goto out; - } + ret = br_stub_require_release_call(this, fd, &br_stub_fd); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_SET_FD_CONTEXT_FAILED, + "gfid=%s", uuid_utoa(fd->inode->gfid), NULL); + goto out; + } - LOCK (&fd->inode->lock); - { - list_add_tail (&ctx->fd_list, &br_stub_fd->list); - } - UNLOCK (&fd->inode->lock); + LOCK(&fd->inode->lock); + { + list_add_tail(&ctx->fd_list, &br_stub_fd->list); + } + UNLOCK(&fd->inode->lock); - ret = 0; + ret = 0; out: - return ret; + return ret; } int -br_stub_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int op_ret, int op_errno, fd_t *fd, inode_t *inode, - struct iatt *stbuf, struct iatt *preparent, - struct iatt *postparent, dict_t *xdata) -{ - int32_t ret = 0; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; - - if (op_ret < 0) - goto unwind; - - ret = br_stub_get_inode_ctx (this, fd->inode, &ctx_addr); - if (ret < 0) { - ret = br_stub_init_inode_versions (this, fd, inode, version, - _gf_true, _gf_false); - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } - } else { - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - ret = br_stub_add_fd_to_inode (this, fd, ctx); +br_stub_create_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, fd_t *fd, inode_t *inode, + struct iatt *stbuf, struct iatt *preparent, + struct iatt *postparent, dict_t *xdata) +{ + int32_t ret = 0; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; + br_stub_private_t *priv = NULL; + + priv = this->private; + + if (op_ret < 0) + goto unwind; + + if (!priv->do_versioning) + goto unwind; + + ret = br_stub_get_inode_ctx(this, fd->inode, &ctx_addr); + if (ret < 0) { + ret = br_stub_init_inode_versions(this, fd, inode, version, _gf_true, + _gf_false, &ctx_addr); + if (ret) { + op_ret = -1; + op_errno = EINVAL; } + } else { + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + ret = br_stub_add_fd_to_inode(this, fd, ctx); + } unwind: - STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, - fd, inode, stbuf, preparent, postparent, xdata); - return 0; + STACK_UNWIND_STRICT(create, frame, op_ret, op_errno, fd, inode, stbuf, + preparent, postparent, xdata); + return 0; } int -br_stub_create (call_frame_t *frame, - xlator_t *this, loc_t *loc, int32_t flags, - mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata) -{ - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc->inode, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd, unwind); - GF_VALIDATE_OR_GOTO (this->name, fd->inode, unwind); - - STACK_WIND (frame, br_stub_create_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->create, - loc, flags, mode, umask, fd, xdata); - return 0; +br_stub_create(call_frame_t *frame, xlator_t *this, loc_t *loc, int32_t flags, + mode_t mode, mode_t umask, fd_t *fd, dict_t *xdata) +{ + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc->inode, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd, unwind); + GF_VALIDATE_OR_GOTO(this->name, fd->inode, unwind); + + STACK_WIND(frame, br_stub_create_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->create, loc, flags, mode, umask, fd, + xdata); + return 0; unwind: - STACK_UNWIND_STRICT (create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, - NULL, NULL); - return 0; + STACK_UNWIND_STRICT(create, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL, + NULL); + return 0; } int -br_stub_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int op_ret, int op_errno, inode_t *inode, - struct iatt *stbuf, struct iatt *preparent, - struct iatt *postparent, dict_t *xdata) -{ - int32_t ret = -1; - unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; - - if (op_ret < 0) - goto unwind; - - ret = br_stub_init_inode_versions (this, NULL, inode, version, - _gf_true, _gf_false); - /** - * Like lookup, if init_inode_versions fail, return EINVAL - */ - if (ret) { - op_ret = -1; - op_errno = EINVAL; - } +br_stub_mknod_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int op_ret, + int op_errno, inode_t *inode, struct iatt *stbuf, + struct iatt *preparent, struct iatt *postparent, + dict_t *xdata) +{ + int32_t ret = -1; + unsigned long version = BITROT_DEFAULT_CURRENT_VERSION; + br_stub_private_t *priv = NULL; + + priv = this->private; + + if (op_ret < 0) + goto unwind; + + if (!priv->do_versioning) + goto unwind; + + ret = br_stub_init_inode_versions(this, NULL, inode, version, _gf_true, + _gf_false, NULL); + /** + * Like lookup, if init_inode_versions fail, return EINVAL + */ + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } unwind: - STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, - inode, stbuf, preparent, postparent, xdata); - return 0; + STACK_UNWIND_STRICT(mknod, frame, op_ret, op_errno, inode, stbuf, preparent, + postparent, xdata); + return 0; } int -br_stub_mknod (call_frame_t *frame, xlator_t *this, - loc_t *loc, mode_t mode, dev_t dev, mode_t umask, dict_t *xdata) +br_stub_mknod(call_frame_t *frame, xlator_t *this, loc_t *loc, mode_t mode, + dev_t dev, mode_t umask, dict_t *xdata) { - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc->inode, unwind); + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc->inode, unwind); - STACK_WIND (frame, br_stub_mknod_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->mknod, - loc, mode, dev, umask, xdata); - return 0; + STACK_WIND(frame, br_stub_mknod_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->mknod, loc, mode, dev, umask, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (mknod, frame, -1, EINVAL, NULL, NULL, NULL, - NULL, NULL); - return 0; + STACK_UNWIND_STRICT(mknod, frame, -1, EINVAL, NULL, NULL, NULL, NULL, NULL); + return 0; } /** }}} */ @@ -2389,210 +2630,245 @@ unwind: * creattion failure as the lookup failure. */ static int32_t -br_stub_lookup_version (xlator_t *this, - uuid_t gfid, inode_t *inode, dict_t *xattr) -{ - unsigned long version = 0; - br_version_t *obuf = NULL; - br_signature_t *sbuf = NULL; - br_vxattr_status_t status; - gf_boolean_t bad_object = _gf_false; - - /** - * versioning xattrs were requested from POSIX. if available, figure - * out the correct version to use in the inode context (start with - * the default version if unavailable). As of now versions are not - * persisted on-disk. The inode is marked dirty, so that the first - * operation (such as write(), etc..) triggers synchronization to - * disk. - */ - status = br_version_xattr_state (xattr, &obuf, &sbuf, &bad_object); - version = ((status == BR_VXATTR_STATUS_FULL) - || (status == BR_VXATTR_STATUS_UNSIGNED)) - ? obuf->ongoingversion : BITROT_DEFAULT_CURRENT_VERSION; - - /** - * If signature is there, but version is not therem then that status is - * is treated as INVALID. So in that case, we should not initialize the - * inode context with wrong version names etc. - */ - if (status == BR_VXATTR_STATUS_INVALID) - return -1; +br_stub_lookup_version(xlator_t *this, uuid_t gfid, inode_t *inode, + dict_t *xattr) +{ + unsigned long version = 0; + br_version_t *obuf = NULL; + br_signature_t *sbuf = NULL; + br_vxattr_status_t status; + gf_boolean_t bad_object = _gf_false; + + /** + * versioning xattrs were requested from POSIX. if available, figure + * out the correct version to use in the inode context (start with + * the default version if unavailable). As of now versions are not + * persisted on-disk. The inode is marked dirty, so that the first + * operation (such as write(), etc..) triggers synchronization to + * disk. + */ + status = br_version_xattr_state(xattr, &obuf, &sbuf, &bad_object); + version = ((status == BR_VXATTR_STATUS_FULL) || + (status == BR_VXATTR_STATUS_UNSIGNED)) + ? obuf->ongoingversion + : BITROT_DEFAULT_CURRENT_VERSION; + + /** + * If signature is there, but version is not there then that status is + * is treated as INVALID. So in that case, we should not initialize the + * inode context with wrong version names etc. + */ + if (status == BR_VXATTR_STATUS_INVALID) + return -1; - return br_stub_init_inode_versions (this, NULL, inode, version, - _gf_true, bad_object); + return br_stub_init_inode_versions(this, NULL, inode, version, _gf_true, + bad_object, NULL); } - /** {{{ */ int32_t -br_stub_opendir (call_frame_t *frame, xlator_t *this, - loc_t *loc, fd_t *fd, dict_t *xdata) -{ - br_stub_private_t *priv = NULL; - br_stub_fd_t *fd_ctx = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - - priv = this->private; - if (gf_uuid_compare (fd->inode->gfid, priv->bad_object_dir_gfid)) - goto normal; - - fd_ctx = br_stub_fd_new (); - if (!fd_ctx) { - op_errno = ENOMEM; - goto unwind; - } +br_stub_opendir(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd, + dict_t *xdata) +{ + br_stub_private_t *priv = NULL; + br_stub_fd_t *fd_ctx = NULL; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; - fd_ctx->bad_object.dir_eof = -1; - fd_ctx->bad_object.dir = sys_opendir (priv->stub_basepath); - if (!fd_ctx->bad_object.dir) { - op_errno = errno; - goto err_freectx; - } + priv = this->private; + if (gf_uuid_compare(fd->inode->gfid, priv->bad_object_dir_gfid)) + goto normal; + + fd_ctx = br_stub_fd_new(); + if (!fd_ctx) { + op_errno = ENOMEM; + goto unwind; + } - op_ret = br_stub_fd_ctx_set (this, fd, fd_ctx); - if (!op_ret) - goto unwind; + fd_ctx->bad_object.dir_eof = -1; + fd_ctx->bad_object.dir = sys_opendir(priv->stub_basepath); + if (!fd_ctx->bad_object.dir) { + op_errno = errno; + goto err_freectx; + } - sys_closedir (fd_ctx->bad_object.dir); + op_ret = br_stub_fd_ctx_set(this, fd, fd_ctx); + if (!op_ret) + goto unwind; + + sys_closedir(fd_ctx->bad_object.dir); err_freectx: - GF_FREE (fd_ctx); + GF_FREE(fd_ctx); unwind: - STACK_UNWIND_STRICT (opendir, frame, op_ret, op_errno, fd, NULL); - return 0; + STACK_UNWIND_STRICT(opendir, frame, op_ret, op_errno, fd, NULL); + return 0; normal: - STACK_WIND (frame, default_opendir_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->opendir, loc, fd, xdata); - return 0; + STACK_WIND(frame, default_opendir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, loc, fd, xdata); + return 0; } int32_t -br_stub_readdir (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, dict_t *xdata) -{ - call_stub_t *stub = NULL; - br_stub_private_t *priv = NULL; - - priv = this->private; - if (gf_uuid_compare (fd->inode->gfid, priv->bad_object_dir_gfid)) - goto out; - stub = fop_readdir_stub (frame, br_stub_readdir_wrapper, fd, size, off, - xdata); - if (!stub) { - STACK_UNWIND_STRICT (readdir, frame, -1, ENOMEM, NULL, NULL); - return 0; - } - br_stub_worker_enqueue (this, stub); - return 0; +br_stub_readdir(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t off, dict_t *xdata) +{ + call_stub_t *stub = NULL; + br_stub_private_t *priv = NULL; + + priv = this->private; + if (!priv->do_versioning) + goto out; + + if (gf_uuid_compare(fd->inode->gfid, priv->bad_object_dir_gfid)) + goto out; + stub = fop_readdir_stub(frame, br_stub_readdir_wrapper, fd, size, off, + xdata); + if (!stub) { + STACK_UNWIND_STRICT(readdir, frame, -1, ENOMEM, NULL, NULL); + return 0; + } + br_stub_worker_enqueue(this, stub); + return 0; out: - STACK_WIND (frame, default_readdir_cbk, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->readdir, fd, size, off, xdata); - return 0; + STACK_WIND(frame, default_readdir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdir, fd, size, off, xdata); + return 0; } int -br_stub_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int op_ret, int op_errno, gf_dirent_t *entries, - dict_t *dict) -{ - int32_t ret = 0; - uint64_t ctxaddr = 0; - gf_dirent_t *entry = NULL; - - if (op_ret < 0) - goto unwind; - - list_for_each_entry (entry, &entries->list, list) { - if ((strcmp (entry->d_name, ".") == 0) - || (strcmp (entry->d_name, "..") == 0)) - continue; - - if (!IA_ISREG (entry->d_stat.ia_type)) - continue; - - ret = br_stub_get_inode_ctx (this, entry->inode, &ctxaddr); - if (ret < 0) - ctxaddr = 0; - if (ctxaddr) { /* already has the context */ - br_stub_remove_vxattrs (entry->dict); - continue; - } - - ret = br_stub_lookup_version - (this, entry->inode->gfid, entry->inode, entry->dict); - br_stub_remove_vxattrs (entry->dict); - if (ret) { - /** - * there's no per-file granularity support in case of - * failure. let's fail the entire request for now.. - */ - break; - } +br_stub_readdirp_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, gf_dirent_t *entries, + dict_t *dict) +{ + int32_t ret = 0; + uint64_t ctxaddr = 0; + gf_dirent_t *entry = NULL; + br_stub_private_t *priv = NULL; + gf_boolean_t ver_enabled = _gf_false; + + BR_STUB_VER_ENABLED_IN_CALLPATH(frame, ver_enabled); + priv = this->private; + BR_STUB_VER_COND_GOTO(priv, (!ver_enabled), unwind); + + if (op_ret < 0) + goto unwind; + + list_for_each_entry(entry, &entries->list, list) + { + if ((strcmp(entry->d_name, ".") == 0) || + (strcmp(entry->d_name, "..") == 0)) + continue; + + if (!IA_ISREG(entry->d_stat.ia_type)) + continue; + + /* + * Readdirp for most part is a bulk lookup for all the entries + * present in the directory being read. Ideally, for each + * entry, the handling should be similar to that of a lookup + * callback. But for now, just keeping this as it has been + * until now (which means, this comment has been added much + * later as part of a change that wanted to send the flag + * of true/false to br_stub_remove_vxattrs to indicate whether + * the bad-object xattr should be removed from the entry->dict + * or not). Until this change, the function br_stub_remove_vxattrs + * was just removing all the xattrs associated with bit-rot-stub + * (like version, bad-object, signature etc). But, there are + * scenarios where we only want to send bad-object xattr and not + * others. So this comment is part of that change which also + * mentions about another possible change that might be needed + * in future. + * But for now, adding _gf_true means functionally its same as + * what this function was doing before. Just remove all the stub + * related xattrs. + */ + ret = br_stub_get_inode_ctx(this, entry->inode, &ctxaddr); + if (ret < 0) + ctxaddr = 0; + if (ctxaddr) { /* already has the context */ + br_stub_remove_vxattrs(entry->dict, _gf_true); + continue; } + ret = br_stub_lookup_version(this, entry->inode->gfid, entry->inode, + entry->dict); + br_stub_remove_vxattrs(entry->dict, _gf_true); if (ret) { - op_ret = -1; - op_errno = EINVAL; + /** + * there's no per-file granularity support in case of + * failure. let's fail the entire request for now.. + */ + break; } + } - unwind: - STACK_UNWIND_STRICT (readdirp, frame, op_ret, op_errno, entries, dict); + if (ret) { + op_ret = -1; + op_errno = EINVAL; + } - return 0; +unwind: + STACK_UNWIND_STRICT(readdirp, frame, op_ret, op_errno, entries, dict); + + return 0; } int -br_stub_readdirp (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t offset, dict_t *dict) +br_stub_readdirp(call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, dict_t *dict) { - int32_t ret = -1; - int op_errno = 0; - gf_boolean_t xref = _gf_false; - - op_errno = ENOMEM; - if (!dict) { - dict = dict_new (); - if (!dict) - goto unwind; - } else { - dict = dict_ref (dict); - } + int32_t ret = -1; + int op_errno = 0; + gf_boolean_t xref = _gf_false; + br_stub_private_t *priv = NULL; - xref = _gf_true; + priv = this->private; + BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, wind); - op_errno = EINVAL; - ret = dict_set_uint32 (dict, BITROT_CURRENT_VERSION_KEY, 0); - if (ret) - goto unwind; - ret = dict_set_uint32 (dict, BITROT_SIGNING_VERSION_KEY, 0); - if (ret) - goto unwind; - ret = dict_set_uint32 (dict, BITROT_OBJECT_BAD_KEY, 0); - if (ret) - goto unwind; + op_errno = ENOMEM; + if (!dict) { + dict = dict_new(); + if (!dict) + goto unwind; + } else { + dict = dict_ref(dict); + } + + xref = _gf_true; + + op_errno = EINVAL; + ret = dict_set_uint32(dict, BITROT_CURRENT_VERSION_KEY, 0); + if (ret) + goto unwind; + ret = dict_set_uint32(dict, BITROT_SIGNING_VERSION_KEY, 0); + if (ret) + goto unwind; + ret = dict_set_uint32(dict, BITROT_OBJECT_BAD_KEY, 0); + if (ret) + goto unwind; - STACK_WIND (frame, br_stub_readdirp_cbk, FIRST_CHILD (this), - FIRST_CHILD(this)->fops->readdirp, fd, size, - offset, dict); - goto unref_dict; +wind: + STACK_WIND(frame, br_stub_readdirp_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->readdirp, fd, size, offset, dict); + goto unref_dict; - unwind: - STACK_UNWIND_STRICT (readdirp, frame, -1, op_errno, NULL, NULL); - return 0; +unwind: + if (frame->local == (void *)0x1) + frame->local = NULL; + STACK_UNWIND_STRICT(readdirp, frame, -1, op_errno, NULL, NULL); + return 0; - unref_dict: - if (xref) - dict_unref (dict); - return 0; +unref_dict: + if (xref) + dict_unref(dict); + return 0; } /** }}} */ - /** {{{ */ /* lookup() */ @@ -2606,193 +2882,213 @@ br_stub_readdirp (call_frame_t *frame, xlator_t *this, * either forget () or lookup () will take care of removing the link. */ void -br_stub_handle_lookup_error (xlator_t *this, inode_t *inode, int32_t op_errno) +br_stub_handle_lookup_error(xlator_t *this, inode_t *inode, int32_t op_errno) { - int32_t ret = -1; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; - if (op_errno != ENOENT) - goto out; + if (op_errno != ENOENT) + goto out; - if (!inode_is_linked (inode)) - goto out; + if (!inode_is_linked(inode)) + goto out; - ret = br_stub_get_inode_ctx (this, inode, &ctx_addr); - if (ret) - goto out; + ret = br_stub_get_inode_ctx(this, inode, &ctx_addr); + if (ret) + goto out; - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - LOCK (&inode->lock); - { - if (__br_stub_is_bad_object (ctx)) - (void) br_stub_del (this, inode->gfid); - } - UNLOCK (&inode->lock); - - if (__br_stub_is_bad_object (ctx)) { - /* File is not present, might be deleted for recovery, - * del the bitrot inode context - */ - ctx_addr = 0; - inode_ctx_del (inode, this, &ctx_addr); - if (ctx_addr) { - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - GF_FREE (ctx); - } + LOCK(&inode->lock); + { + if (__br_stub_is_bad_object(ctx)) + (void)br_stub_del(this, inode->gfid); + } + UNLOCK(&inode->lock); + + if (__br_stub_is_bad_object(ctx)) { + /* File is not present, might be deleted for recovery, + * del the bitrot inode context + */ + ctx_addr = 0; + inode_ctx_del(inode, this, &ctx_addr); + if (ctx_addr) { + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + GF_FREE(ctx); } + } out: - return; + return; } int -br_stub_lookup_cbk (call_frame_t *frame, void *cookie, - xlator_t *this, int op_ret, int op_errno, inode_t *inode, - struct iatt *stbuf, dict_t *xattr, struct iatt *postparent) +br_stub_lookup_cbk(call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, inode_t *inode, struct iatt *stbuf, + dict_t *xattr, struct iatt *postparent) { - int32_t ret = 0; + int32_t ret = 0; + br_stub_private_t *priv = NULL; + gf_boolean_t ver_enabled = _gf_false; + gf_boolean_t remove_bad_file_marker = _gf_true; - if (op_ret < 0) { - (void) br_stub_handle_lookup_error (this, inode, op_errno); - goto unwind; - } + BR_STUB_VER_ENABLED_IN_CALLPATH(frame, ver_enabled); + priv = this->private; - if (!IA_ISREG (stbuf->ia_type)) - goto unwind; + if (op_ret < 0) { + (void)br_stub_handle_lookup_error(this, inode, op_errno); - /** - * If the object is bad, then "bad inode" marker has to be sent back - * in resoinse, for revalidated lookups as well. Some xlators such as - * quick-read might cache the data in revalidated lookup as fresh - * lookup would anyway have sent "bad inode" marker. - * In general send bad inode marker for every lookup operation on the - * bad object. + /* + * If the lookup error is not ENOENT, then it is better + * to send the bad file marker to the higher layer (if + * it has been set) */ - if (cookie != (void *) BR_STUB_REQUEST_COOKIE) { - ret = br_stub_mark_xdata_bad_object (this, inode, xattr); - if (ret) { - op_ret = -1; - op_errno = EIO; - goto unwind; - } - - goto delkey; - } - - ret = br_stub_lookup_version (this, stbuf->ia_gfid, inode, xattr); - if (ret < 0) { - op_ret = -1; - op_errno = EINVAL; - goto delkey; - } - + if (op_errno != ENOENT) + remove_bad_file_marker = _gf_false; + goto delkey; + } + + BR_STUB_VER_COND_GOTO(priv, (!ver_enabled), delkey); + + if (!IA_ISREG(stbuf->ia_type)) + goto unwind; + + /** + * If the object is bad, then "bad inode" marker has to be sent back + * in resoinse, for revalidated lookups as well. Some xlators such as + * quick-read might cache the data in revalidated lookup as fresh + * lookup would anyway have sent "bad inode" marker. + * In general send bad inode marker for every lookup operation on the + * bad object. + */ + if (cookie != (void *)BR_STUB_REQUEST_COOKIE) { + ret = br_stub_mark_xdata_bad_object(this, inode, xattr); + if (ret) { + op_ret = -1; + op_errno = EIO; + /* + * This flag ensures that in the label @delkey below, + * bad file marker is not removed from the dictinary, + * but other virtual xattrs (such as version, signature) + * are removed. + */ + remove_bad_file_marker = _gf_false; + } + goto delkey; + } + + ret = br_stub_lookup_version(this, stbuf->ia_gfid, inode, xattr); + if (ret < 0) { + op_ret = -1; + op_errno = EINVAL; + goto delkey; + } + + /** + * If the object is bad, send "bad inode" marker back in response + * for xlator(s) to act accordingly (such as quick-read, etc..) + */ + ret = br_stub_mark_xdata_bad_object(this, inode, xattr); + if (ret) { /** - * If the object is bad, send "bad inode" marker back in response - * for xlator(s) to act accordingly (such as quick-read, etc..) + * aaha! bad object, but sorry we would not + * satisfy the request on allocation failures. */ - ret = br_stub_mark_xdata_bad_object (this, inode, xattr); - if (ret) { - /** - * aaha! bad object, but sorry we would not - * satisfy the request on allocation failures. - */ - op_ret = -1; - op_errno = EIO; - goto unwind; - } + op_ret = -1; + op_errno = EIO; + goto delkey; + } delkey: - br_stub_remove_vxattrs (xattr); + br_stub_remove_vxattrs(xattr, remove_bad_file_marker); unwind: - STACK_UNWIND_STRICT (lookup, frame, - op_ret, op_errno, inode, stbuf, xattr, postparent); + STACK_UNWIND_STRICT(lookup, frame, op_ret, op_errno, inode, stbuf, xattr, + postparent); - return 0; + return 0; } int -br_stub_lookup (call_frame_t *frame, - xlator_t *this, loc_t *loc, dict_t *xdata) -{ - int32_t ret = 0; - int op_errno = 0; - void *cookie = NULL; - uint64_t ctx_addr = 0; - gf_boolean_t xref = _gf_false; - br_stub_private_t *priv = NULL; - call_stub_t *stub = NULL; - - GF_VALIDATE_OR_GOTO ("bit-rot-stub", this, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc, unwind); - GF_VALIDATE_OR_GOTO (this->name, loc->inode, unwind); - - priv = this->private; - - if (!gf_uuid_compare (loc->gfid, priv->bad_object_dir_gfid) || - !gf_uuid_compare (loc->pargfid, priv->bad_object_dir_gfid)) { - - stub = fop_lookup_stub (frame, br_stub_lookup_wrapper, loc, - xdata); - if (!stub) { - op_errno = ENOMEM; - goto unwind; - } - br_stub_worker_enqueue (this, stub); - return 0; - } +br_stub_lookup(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +{ + int32_t ret = 0; + int op_errno = 0; + void *cookie = NULL; + uint64_t ctx_addr = 0; + gf_boolean_t xref = _gf_false; + br_stub_private_t *priv = NULL; + call_stub_t *stub = NULL; - ret = br_stub_get_inode_ctx (this, loc->inode, &ctx_addr); - if (ret < 0) - ctx_addr = 0; - if (ctx_addr != 0) - goto wind; + GF_VALIDATE_OR_GOTO("bit-rot-stub", this, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc, unwind); + GF_VALIDATE_OR_GOTO(this->name, loc->inode, unwind); - /** - * fresh lookup: request version keys from POSIX - */ - op_errno = ENOMEM; - if (!xdata) { - xdata = dict_new (); - if (!xdata) - goto unwind; - } else { - xdata = dict_ref (xdata); + priv = this->private; + + BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, wind); + + if (!gf_uuid_compare(loc->gfid, priv->bad_object_dir_gfid) || + !gf_uuid_compare(loc->pargfid, priv->bad_object_dir_gfid)) { + stub = fop_lookup_stub(frame, br_stub_lookup_wrapper, loc, xdata); + if (!stub) { + op_errno = ENOMEM; + goto unwind; } + br_stub_worker_enqueue(this, stub); + return 0; + } - xref = _gf_true; + ret = br_stub_get_inode_ctx(this, loc->inode, &ctx_addr); + if (ret < 0) + ctx_addr = 0; + if (ctx_addr != 0) + goto wind; - /** - * Requesting both xattrs provides a way of sanity checking the - * object. Anomaly checking is done in cbk by examining absence - * of either or both xattrs. - */ - op_errno = EINVAL; - ret = dict_set_uint32 (xdata, BITROT_CURRENT_VERSION_KEY, 0); - if (ret) - goto unwind; - ret = dict_set_uint32 (xdata, BITROT_SIGNING_VERSION_KEY, 0); - if (ret) - goto unwind; - ret = dict_set_uint32 (xdata, BITROT_OBJECT_BAD_KEY, 0); - if (ret) - goto unwind; - cookie = (void *) BR_STUB_REQUEST_COOKIE; + /** + * fresh lookup: request version keys from POSIX + */ + op_errno = ENOMEM; + if (!xdata) { + xdata = dict_new(); + if (!xdata) + goto unwind; + } else { + xdata = dict_ref(xdata); + } + + xref = _gf_true; + + /** + * Requesting both xattrs provides a way of sanity checking the + * object. Anomaly checking is done in cbk by examining absence + * of either or both xattrs. + */ + op_errno = EINVAL; + ret = dict_set_uint32(xdata, BITROT_CURRENT_VERSION_KEY, 0); + if (ret) + goto unwind; + ret = dict_set_uint32(xdata, BITROT_SIGNING_VERSION_KEY, 0); + if (ret) + goto unwind; + ret = dict_set_uint32(xdata, BITROT_OBJECT_BAD_KEY, 0); + if (ret) + goto unwind; + cookie = (void *)BR_STUB_REQUEST_COOKIE; - wind: - STACK_WIND_COOKIE (frame, br_stub_lookup_cbk, cookie, - FIRST_CHILD(this), FIRST_CHILD(this)->fops->lookup, - loc, xdata); - goto dealloc_dict; +wind: + STACK_WIND_COOKIE(frame, br_stub_lookup_cbk, cookie, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->lookup, loc, xdata); + goto dealloc_dict; - unwind: - STACK_UNWIND_STRICT (lookup, frame, - -1, op_errno, NULL, NULL, NULL, NULL); - dealloc_dict: - if (xref) - dict_unref (xdata); - return 0; +unwind: + if (frame->local == (void *)0x1) + frame->local = NULL; + STACK_UNWIND_STRICT(lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL); +dealloc_dict: + if (xref) + dict_unref(xdata); + return 0; } /** }}} */ @@ -2801,52 +3097,64 @@ br_stub_lookup (call_frame_t *frame, /* stat */ int -br_stub_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) +br_stub_stat(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) { - int32_t ret = 0; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; + int32_t ret = 0; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + br_stub_private_t *priv = NULL; - if (!IA_ISREG (loc->inode->ia_type)) - goto wind; + priv = this->private; - ret = br_stub_check_bad_object (this, loc->inode, &op_ret, &op_errno); - if (ret) - goto unwind; + if (!priv->do_versioning) + goto wind; - wind: - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->stat, loc, xdata); - return 0; + if (!IA_ISREG(loc->inode->ia_type)) + goto wind; + + ret = br_stub_check_bad_object(this, loc->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + +wind: + STACK_WIND_TAIL(frame, FIRST_CHILD(this), FIRST_CHILD(this)->fops->stat, + loc, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, NULL, NULL); - return 0; + STACK_UNWIND_STRICT(stat, frame, op_ret, op_errno, NULL, NULL); + return 0; } /* fstat */ int -br_stub_fstat (call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) +br_stub_fstat(call_frame_t *frame, xlator_t *this, fd_t *fd, dict_t *xdata) { - int32_t ret = 0; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; + int32_t ret = 0; + int32_t op_ret = -1; + int32_t op_errno = EINVAL; + br_stub_private_t *priv = NULL; - if (!IA_ISREG (fd->inode->ia_type)) - goto wind; + priv = this->private; - ret = br_stub_check_bad_object (this, fd->inode, &op_ret, &op_errno); - if (ret) - goto unwind; + if (!priv->do_versioning) + goto wind; - wind: - STACK_WIND_TAIL (frame, FIRST_CHILD(this), - FIRST_CHILD(this)->fops->fstat, fd, xdata); - return 0; + if (!IA_ISREG(fd->inode->ia_type)) + goto wind; + + ret = br_stub_check_bad_object(this, fd->inode, &op_ret, &op_errno); + if (ret) + goto unwind; + +wind: + STACK_WIND_TAIL(frame, FIRST_CHILD(this), FIRST_CHILD(this)->fops->fstat, + fd, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (fstat, frame, op_ret, op_errno, NULL, NULL); - return 0; + STACK_UNWIND_STRICT(fstat, frame, op_ret, op_errno, NULL, NULL); + return 0; } /** }}} */ @@ -2856,101 +3164,114 @@ unwind: /* unlink() */ int -br_stub_unlink_cbk (call_frame_t *frame, void *cookie, xlator_t *this, +br_stub_unlink_cbk(call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, int32_t op_errno, struct iatt *preparent, struct iatt *postparent, dict_t *xdata) { - br_stub_local_t *local = NULL; - inode_t *inode = NULL; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - - local = frame->local; - frame->local = NULL; - - if (op_ret < 0) - goto unwind; - - inode = local->u.context.inode; - if (!IA_ISREG (inode->ia_type)) - goto unwind; - - ret = br_stub_get_inode_ctx (this, inode, &ctx_addr); - if (ret) { - /** - * If the inode is bad AND context is not there, then there - * is a possibility of the gfid of the object being listed - * in the quarantine directory and will be shown in the - * bad objects list. So continuing with the fop with a - * warning log. The entry from the quarantine directory - * has to be removed manually. Its not a good idea to fail - * the fop, as the object has already been deleted. - */ - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, - "failed to get the context for the inode %s", - uuid_utoa (inode->gfid)); - goto unwind; - } + br_stub_local_t *local = NULL; + inode_t *inode = NULL; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + br_stub_private_t *priv = NULL; + gf_boolean_t ver_enabled = _gf_false; + + BR_STUB_VER_ENABLED_IN_CALLPATH(frame, ver_enabled); + priv = this->private; + BR_STUB_VER_COND_GOTO(priv, (!ver_enabled), unwind); + + local = frame->local; + frame->local = NULL; + + if (op_ret < 0) + goto unwind; + + if (!local) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_NULL_LOCAL, NULL); + goto unwind; + } + inode = local->u.context.inode; + if (!IA_ISREG(inode->ia_type)) + goto unwind; + + ret = br_stub_get_inode_ctx(this, inode, &ctx_addr); + if (ret) { + /** + * If the inode is bad AND context is not there, then there + * is a possibility of the gfid of the object being listed + * in the quarantine directory and will be shown in the + * bad objects list. So continuing with the fop with a + * warning log. The entry from the quarantine directory + * has to be removed manually. Its not a good idea to fail + * the fop, as the object has already been deleted. + */ + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_GET_INODE_CONTEXT_FAILED, + "inode-gfid=%s", uuid_utoa(inode->gfid), NULL); + goto unwind; + } - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - LOCK (&inode->lock); - { - /** - * Ignoring the return value of br_stub_del (). - * There is not much that can be done if unlinking - * of the entry in the quarantine directory fails. - * The failure is logged. - */ - if (__br_stub_is_bad_object (ctx)) - (void) br_stub_del (this, inode->gfid); - } - UNLOCK (&inode->lock); + LOCK(&inode->lock); + { + /** + * Ignoring the return value of br_stub_del (). + * There is not much that can be done if unlinking + * of the entry in the quarantine directory fails. + * The failure is logged. + */ + if (__br_stub_is_bad_object(ctx)) + (void)br_stub_del(this, inode->gfid); + } + UNLOCK(&inode->lock); unwind: - STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno, preparent, - postparent, xdata); - br_stub_cleanup_local (local); - br_stub_dealloc_local (local); - return 0; + STACK_UNWIND_STRICT(unlink, frame, op_ret, op_errno, preparent, postparent, + xdata); + br_stub_cleanup_local(local); + br_stub_dealloc_local(local); + return 0; } int -br_stub_unlink (call_frame_t *frame, xlator_t *this, loc_t *loc, int flag, - dict_t *xdata) +br_stub_unlink(call_frame_t *frame, xlator_t *this, loc_t *loc, int flag, + dict_t *xdata) { - br_stub_local_t *local = NULL; - int32_t op_ret = -1; - int32_t op_errno = 0; + br_stub_local_t *local = NULL; + int32_t op_ret = -1; + int32_t op_errno = 0; + br_stub_private_t *priv = NULL; - local = br_stub_alloc_local (this); - if (!local) { - op_ret = -1; - op_errno = ENOMEM; - gf_msg (this->name, GF_LOG_ERROR, ENOMEM, BRS_MSG_NO_MEMORY, - "failed to allocate memory for local (path: %s, gfid: %s)", - loc->path, uuid_utoa (loc->inode->gfid)); - goto unwind; - } + priv = this->private; + BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, wind); + + local = br_stub_alloc_local(this); + if (!local) { + op_ret = -1; + op_errno = ENOMEM; + gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, BRS_MSG_ALLOC_MEM_FAILED, + "local path=%s", loc->path, "gfid=%s", + uuid_utoa(loc->inode->gfid), NULL); + goto unwind; + } - br_stub_fill_local (local, NULL, NULL, loc->inode, - loc->inode->gfid, - BR_STUB_NO_VERSIONING, 0); + br_stub_fill_local(local, NULL, NULL, loc->inode, loc->inode->gfid, + BR_STUB_NO_VERSIONING, 0); - frame->local = local; + frame->local = local; - STACK_WIND (frame, br_stub_unlink_cbk, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->unlink, loc, flag, xdata); - return 0; +wind: + STACK_WIND(frame, br_stub_unlink_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->unlink, loc, flag, xdata); + return 0; unwind: - STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno, NULL, NULL, NULL); - return 0; + if (frame->local == (void *)0x1) + frame->local = NULL; + STACK_UNWIND_STRICT(unlink, frame, op_ret, op_errno, NULL, NULL, NULL); + return 0; } - /** }}} */ /** {{{ */ @@ -2958,20 +3279,20 @@ unwind: /* forget() */ int -br_stub_forget (xlator_t *this, inode_t *inode) +br_stub_forget(xlator_t *this, inode_t *inode) { - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; - inode_ctx_del (inode, this, &ctx_addr); - if (!ctx_addr) - return 0; + inode_ctx_del(inode, this, &ctx_addr); + if (!ctx_addr) + return 0; - ctx = (br_stub_inode_ctx_t *) (long) ctx_addr; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - GF_FREE (ctx); + GF_FREE(ctx); - return 0; + return 0; } /** }}} */ @@ -2979,60 +3300,58 @@ br_stub_forget (xlator_t *this, inode_t *inode) /** {{{ */ int32_t -br_stub_noop (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, dict_t *xdata) +br_stub_noop(call_frame_t *frame, void *cookie, xlator_t *this, int32_t op_ret, + int32_t op_errno, dict_t *xdata) { - STACK_DESTROY (frame->root); - return 0; + STACK_DESTROY(frame->root); + return 0; } static void -br_stub_send_ipc_fop (xlator_t *this, fd_t *fd, unsigned long releaseversion, - int sign_info) -{ - int32_t op = 0; - int32_t ret = 0; - dict_t *xdata = NULL; - call_frame_t *frame = NULL; - changelog_event_t ev = {0,}; - - ev.ev_type = CHANGELOG_OP_TYPE_BR_RELEASE; - ev.u.releasebr.version = releaseversion; - ev.u.releasebr.sign_info = sign_info; - gf_uuid_copy (ev.u.releasebr.gfid, fd->inode->gfid); - - xdata = dict_new (); - if (!xdata) { - gf_msg (this->name, GF_LOG_WARNING, ENOMEM, BRS_MSG_NO_MEMORY, - "dict allocation failed: cannot send IPC FOP " - "to changelog"); - goto out; - } - - ret = dict_set_static_bin (xdata, - "RELEASE-EVENT", &ev, CHANGELOG_EV_SIZE); - if (ret) { - gf_msg (this->name, GF_LOG_WARNING, 0, BRS_MSG_SET_EVENT_FAILED, - "cannot set release event in dict"); - goto dealloc_dict; - } +br_stub_send_ipc_fop(xlator_t *this, fd_t *fd, unsigned long releaseversion, + int sign_info) +{ + int32_t op = 0; + int32_t ret = 0; + dict_t *xdata = NULL; + call_frame_t *frame = NULL; + changelog_event_t ev = { + 0, + }; + + ev.ev_type = CHANGELOG_OP_TYPE_BR_RELEASE; + ev.u.releasebr.version = releaseversion; + ev.u.releasebr.sign_info = sign_info; + gf_uuid_copy(ev.u.releasebr.gfid, fd->inode->gfid); + + xdata = dict_new(); + if (!xdata) { + gf_smsg(this->name, GF_LOG_WARNING, ENOMEM, BRS_MSG_DICT_ALLOC_FAILED, + NULL); + goto out; + } + + ret = dict_set_static_bin(xdata, "RELEASE-EVENT", &ev, CHANGELOG_EV_SIZE); + if (ret) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_SET_EVENT_FAILED, NULL); + goto dealloc_dict; + } - frame = create_frame (this, this->ctx->pool); - if (!frame) { - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_CREATE_FRAME_FAILED, - "create_frame() failure"); - goto dealloc_dict; - } + frame = create_frame(this, this->ctx->pool); + if (!frame) { + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_CREATE_FRAME_FAILED, + NULL); + goto dealloc_dict; + } - op = GF_IPC_TARGET_CHANGELOG; - STACK_WIND (frame, br_stub_noop, FIRST_CHILD (this), - FIRST_CHILD (this)->fops->ipc, op, xdata); + op = GF_IPC_TARGET_CHANGELOG; + STACK_WIND(frame, br_stub_noop, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->ipc, op, xdata); - dealloc_dict: - dict_unref (xdata); - out: - return; +dealloc_dict: + dict_unref(xdata); +out: + return; } /** @@ -3043,7 +3362,7 @@ br_stub_send_ipc_fop (xlator_t *this, fd_t *fd, unsigned long releaseversion, * 3) BR_SIGN_QUICK => reopen has happened and this release should trigger sign * 2 events: * 1) GF_FOP_RELEASE - * 2) GF_FOP_WRITE (actually a dummy write fro BitD) + * 2) GF_FOP_WRITE (actually a dummy write for BitD) * * This is how states are changed based on events: * EVENT: GF_FOP_RELEASE: @@ -3056,115 +3375,113 @@ br_stub_send_ipc_fop (xlator_t *this, fd_t *fd, unsigned long releaseversion, * set state = BR_SIGN_QUICK; */ br_sign_state_t -__br_stub_inode_sign_state (br_stub_inode_ctx_t *ctx, - glusterfs_fop_t fop, fd_t *fd) +__br_stub_inode_sign_state(br_stub_inode_ctx_t *ctx, glusterfs_fop_t fop, + fd_t *fd) { - br_sign_state_t sign_info = BR_SIGN_INVALID; - - switch (fop) { + br_sign_state_t sign_info = BR_SIGN_INVALID; + switch (fop) { case GF_FOP_FSETXATTR: - sign_info = ctx->info_sign = BR_SIGN_QUICK; - break; + sign_info = ctx->info_sign = BR_SIGN_QUICK; + break; case GF_FOP_RELEASE: - GF_ASSERT (ctx->info_sign != BR_SIGN_REOPEN_WAIT); + GF_ASSERT(ctx->info_sign != BR_SIGN_REOPEN_WAIT); - if (ctx->info_sign == BR_SIGN_NORMAL) { - sign_info = ctx->info_sign = BR_SIGN_REOPEN_WAIT; - } else { - sign_info = ctx->info_sign; - ctx->info_sign = BR_SIGN_NORMAL; - } + if (ctx->info_sign == BR_SIGN_NORMAL) { + sign_info = ctx->info_sign = BR_SIGN_REOPEN_WAIT; + } else { + sign_info = ctx->info_sign; + ctx->info_sign = BR_SIGN_NORMAL; + } - break; + break; default: - break; - } + break; + } - return sign_info; + return sign_info; } int32_t -br_stub_release (xlator_t *this, fd_t *fd) -{ - int32_t ret = 0; - int32_t flags = 0; - inode_t *inode = NULL; - unsigned long releaseversion = 0; - br_stub_inode_ctx_t *ctx = NULL; - uint64_t tmp = 0; - br_stub_fd_t *br_stub_fd = NULL; - int32_t signinfo = 0; - - inode = fd->inode; - - LOCK (&inode->lock); - { - ctx = __br_stub_get_ongoing_version_ctx (this, inode, NULL); - if (ctx == NULL) - goto unblock; - br_stub_fd = br_stub_fd_ctx_get (this, fd); - if (br_stub_fd) { - list_del_init (&br_stub_fd->list); - } - - ret = __br_stub_can_trigger_release - (inode, ctx, &releaseversion); - if (!ret) - goto unblock; - - signinfo = __br_stub_inode_sign_state (ctx, GF_FOP_RELEASE, fd); - signinfo = htonl (signinfo); - - /* inode back to initital state: mark dirty */ - if (ctx->info_sign == BR_SIGN_NORMAL) { - __br_stub_mark_inode_dirty (ctx); - __br_stub_unset_inode_modified (ctx); - } - } - unblock: - UNLOCK (&inode->lock); +br_stub_release(xlator_t *this, fd_t *fd) +{ + int32_t ret = 0; + int32_t flags = 0; + inode_t *inode = NULL; + unsigned long releaseversion = 0; + br_stub_inode_ctx_t *ctx = NULL; + uint64_t tmp = 0; + br_stub_fd_t *br_stub_fd = NULL; + int32_t signinfo = 0; + + inode = fd->inode; + + LOCK(&inode->lock); + { + ctx = __br_stub_get_ongoing_version_ctx(this, inode, NULL); + if (ctx == NULL) + goto unblock; + br_stub_fd = br_stub_fd_ctx_get(this, fd); + if (br_stub_fd) { + list_del_init(&br_stub_fd->list); + } + + ret = __br_stub_can_trigger_release(inode, ctx, &releaseversion); + if (!ret) + goto unblock; + + signinfo = __br_stub_inode_sign_state(ctx, GF_FOP_RELEASE, fd); + signinfo = htonl(signinfo); + + /* inode back to initital state: mark dirty */ + if (ctx->info_sign == BR_SIGN_NORMAL) { + __br_stub_mark_inode_dirty(ctx); + __br_stub_unset_inode_modified(ctx); + } + } +unblock: + UNLOCK(&inode->lock); - if (ret) { - gf_msg_debug (this->name, 0, "releaseversion: %lu | flags: %d " - "| signinfo: %d", - (unsigned long) ntohl (releaseversion), flags, - ntohl(signinfo)); - br_stub_send_ipc_fop (this, fd, releaseversion, signinfo); - } + if (ret) { + gf_msg_debug(this->name, 0, + "releaseversion: %lu | flags: %d " + "| signinfo: %d", + (unsigned long)ntohl(releaseversion), flags, + ntohl(signinfo)); + br_stub_send_ipc_fop(this, fd, releaseversion, signinfo); + } - ret = fd_ctx_del (fd, this, &tmp); - br_stub_fd = (br_stub_fd_t *)(long)tmp; + ret = fd_ctx_del(fd, this, &tmp); + br_stub_fd = (br_stub_fd_t *)(long)tmp; - GF_FREE (br_stub_fd); + GF_FREE(br_stub_fd); - return 0; + return 0; } int32_t -br_stub_releasedir (xlator_t *this, fd_t *fd) +br_stub_releasedir(xlator_t *this, fd_t *fd) { - br_stub_fd_t *fctx = NULL; - uint64_t ctx = 0; - int ret = 0; + br_stub_fd_t *fctx = NULL; + uint64_t ctx = 0; + int ret = 0; - ret = fd_ctx_del (fd, this, &ctx); - if (ret < 0) - goto out; - - fctx = (br_stub_fd_t *) (long) ctx; - if (fctx->bad_object.dir) { - ret = sys_closedir (fctx->bad_object.dir); - if (ret) - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_BAD_OBJ_DIR_CLOSE_FAIL, - "closedir error: %s", strerror (errno)); - } + ret = fd_ctx_del(fd, this, &ctx); + if (ret < 0) + goto out; - GF_FREE (fctx); + fctx = (br_stub_fd_t *)(long)ctx; + if (fctx->bad_object.dir) { + ret = sys_closedir(fctx->bad_object.dir); + if (ret) + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_BAD_OBJ_DIR_CLOSE_FAIL, + "error=%s", strerror(errno), NULL); + } + + GF_FREE(fctx); out: - return 0; + return 0; } /** }}} */ @@ -3174,84 +3491,100 @@ out: /* ictxmerge */ void -br_stub_ictxmerge (xlator_t *this, fd_t *fd, - inode_t *inode, inode_t *linked_inode) -{ - int32_t ret = 0; - uint64_t ctxaddr = 0; - uint64_t lctxaddr = 0; - br_stub_inode_ctx_t *ctx = NULL; - br_stub_inode_ctx_t *lctx = NULL; - br_stub_fd_t *br_stub_fd = NULL; - - ret = br_stub_get_inode_ctx (this, inode, &ctxaddr); +br_stub_ictxmerge(xlator_t *this, fd_t *fd, inode_t *inode, + inode_t *linked_inode) +{ + int32_t ret = 0; + uint64_t ctxaddr = 0; + uint64_t lctxaddr = 0; + br_stub_inode_ctx_t *ctx = NULL; + br_stub_inode_ctx_t *lctx = NULL; + br_stub_fd_t *br_stub_fd = NULL; + + ret = br_stub_get_inode_ctx(this, inode, &ctxaddr); + if (ret < 0) + goto done; + ctx = (br_stub_inode_ctx_t *)(uintptr_t)ctxaddr; + + LOCK(&linked_inode->lock); + { + ret = __br_stub_get_inode_ctx(this, linked_inode, &lctxaddr); if (ret < 0) - goto done; - ctx = (br_stub_inode_ctx_t *) ctxaddr; + goto unblock; + lctx = (br_stub_inode_ctx_t *)(uintptr_t)lctxaddr; - LOCK (&linked_inode->lock); - { - ret = __br_stub_get_inode_ctx (this, linked_inode, &lctxaddr); - if (ret < 0) - goto unblock; - lctx = (br_stub_inode_ctx_t *) lctxaddr; - - GF_ASSERT (list_is_singular (&ctx->fd_list)); - br_stub_fd = list_first_entry (&ctx->fd_list, br_stub_fd_t, - list); - if (br_stub_fd) { - GF_ASSERT (br_stub_fd->fd == fd); - list_move_tail (&br_stub_fd->list, &lctx->fd_list); - } + GF_ASSERT(list_is_singular(&ctx->fd_list)); + br_stub_fd = list_first_entry(&ctx->fd_list, br_stub_fd_t, list); + if (br_stub_fd) { + GF_ASSERT(br_stub_fd->fd == fd); + list_move_tail(&br_stub_fd->list, &lctx->fd_list); } + } unblock: - UNLOCK (&linked_inode->lock); + UNLOCK(&linked_inode->lock); - done: - return; +done: + return; } /** }}} */ - struct xlator_fops fops = { - .lookup = br_stub_lookup, - .stat = br_stub_stat, - .fstat = br_stub_fstat, - .open = br_stub_open, - .create = br_stub_create, - .readdirp = br_stub_readdirp, - .getxattr = br_stub_getxattr, - .fgetxattr = br_stub_fgetxattr, - .fsetxattr = br_stub_fsetxattr, - .writev = br_stub_writev, - .truncate = br_stub_truncate, - .ftruncate = br_stub_ftruncate, - .mknod = br_stub_mknod, - .readv = br_stub_readv, - .removexattr = br_stub_removexattr, - .fremovexattr = br_stub_fremovexattr, - .setxattr = br_stub_setxattr, - .opendir = br_stub_opendir, - .readdir = br_stub_readdir, - .unlink = br_stub_unlink, + .lookup = br_stub_lookup, + .stat = br_stub_stat, + .fstat = br_stub_fstat, + .open = br_stub_open, + .create = br_stub_create, + .readdirp = br_stub_readdirp, + .getxattr = br_stub_getxattr, + .fgetxattr = br_stub_fgetxattr, + .fsetxattr = br_stub_fsetxattr, + .writev = br_stub_writev, + .truncate = br_stub_truncate, + .ftruncate = br_stub_ftruncate, + .mknod = br_stub_mknod, + .readv = br_stub_readv, + .removexattr = br_stub_removexattr, + .fremovexattr = br_stub_fremovexattr, + .setxattr = br_stub_setxattr, + .opendir = br_stub_opendir, + .readdir = br_stub_readdir, + .unlink = br_stub_unlink, }; struct xlator_cbks cbks = { - .forget = br_stub_forget, - .release = br_stub_release, - .ictxmerge = br_stub_ictxmerge, + .forget = br_stub_forget, + .release = br_stub_release, + .ictxmerge = br_stub_ictxmerge, }; struct volume_options options[] = { - { .key = {"bitrot"}, - .type = GF_OPTION_TYPE_BOOL, - .default_value = "on", - .description = "enable/disable bitrot stub" - }, - { .key = {"export"}, - .type = GF_OPTION_TYPE_PATH, - .description = "brick path for versioning" - }, - { .key = {NULL} }, + {.key = {"bitrot"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "off", + .op_version = {GD_OP_VERSION_3_7_0}, + .flags = OPT_FLAG_SETTABLE | OPT_FLAG_FORCE, + .tags = {"bitrot"}, + .description = "enable/disable bitrot stub"}, + {.key = {"export"}, + .type = GF_OPTION_TYPE_PATH, + .op_version = {GD_OP_VERSION_3_7_0}, + .tags = {"bitrot"}, + .description = "brick path for versioning", + .default_value = "{{ brick.path }}"}, + {.key = {NULL}}, +}; + +xlator_api_t xlator_api = { + .init = init, + .fini = fini, + .notify = notify, + .reconfigure = reconfigure, + .mem_acct_init = mem_acct_init, + .op_version = {1}, /* Present from the initial version */ + .fops = &fops, + .cbks = &cbks, + .options = options, + .identifier = "bitrot-stub", + .category = GF_MAINTAINED, }; diff --git a/xlators/features/bit-rot/src/stub/bit-rot-stub.h b/xlators/features/bit-rot/src/stub/bit-rot-stub.h index 2d515417059..edd79a77e4f 100644 --- a/xlators/features/bit-rot/src/stub/bit-rot-stub.h +++ b/xlators/features/bit-rot/src/stub/bit-rot-stub.h @@ -1,288 +1,325 @@ - /* - Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com> - This file is part of GlusterFS. - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. +/* + Copyright (c) 2015 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. */ #ifndef __BIT_ROT_STUB_H__ #define __BIT_ROT_STUB_H__ -#include "glusterfs.h" -#include "logging.h" -#include "dict.h" -#include "xlator.h" -#include "defaults.h" -#include "call-stub.h" +#include <glusterfs/glusterfs.h> +#include <glusterfs/logging.h> +#include <glusterfs/dict.h> +#include <glusterfs/xlator.h> +#include <glusterfs/defaults.h> +#include <glusterfs/call-stub.h> #include "bit-rot-stub-mem-types.h" -#include "syscall.h" +#include <glusterfs/syscall.h> +#include <glusterfs/common-utils.h> #include "bit-rot-common.h" #include "bit-rot-stub-messages.h" #include "glusterfs3-xdr.h" +#include <glusterfs/syncop.h> +#include <glusterfs/syncop-utils.h> -#define BAD_OBJECT_THREAD_STACK_SIZE ((size_t)(1024*1024)) +#define BAD_OBJECT_THREAD_STACK_SIZE ((size_t)(1024 * 1024)) +#define BR_STUB_DUMP_STR_SIZE 65536 -typedef int (br_stub_version_cbk) (call_frame_t *, void *, - xlator_t *, int32_t, int32_t, dict_t *); +#define BR_PATH_MAX_EXTRA (PATH_MAX + 1024) +#define BR_PATH_MAX_PLUS (PATH_MAX + 2048) + +/* + * Oops. Spelling mistake. Correcting it + */ +#define OLD_BR_STUB_QUARANTINE_DIR GF_HIDDEN_PATH "/quanrantine" +#define BR_STUB_QUARANTINE_DIR GF_HIDDEN_PATH "/quarantine" + +/* do not reference frame->local in cbk unless initialized. + * Assigned 0x1 marks verisoning flag between call path and + * cbk path. + */ +#define BR_STUB_VER_NOT_ACTIVE_THEN_GOTO(frame, priv, label) \ + do { \ + if (priv->do_versioning) \ + frame->local = (void *)0x1; \ + else \ + goto label; \ + } while (0) + +#define BR_STUB_VER_COND_GOTO(priv, cond, label) \ + do { \ + if (!priv->do_versioning || cond) \ + goto label; \ + } while (0) + +#define BR_STUB_VER_ENABLED_IN_CALLPATH(frame, flag) \ + do { \ + if (frame->local) \ + flag = _gf_true; \ + if (frame->local == (void *)0x1) \ + frame->local = NULL; \ + } while (0) + +#define BR_STUB_RESET_LOCAL_NULL(frame) \ + do { \ + if (frame->local == (void *)0x1) \ + frame->local = NULL; \ + } while (0) + +typedef int(br_stub_version_cbk)(call_frame_t *, void *, xlator_t *, int32_t, + int32_t, dict_t *); typedef struct br_stub_inode_ctx { - int need_writeback; /* does the inode need - a writeback to disk? */ - unsigned long currentversion; /* ongoing version */ - - int info_sign; - struct list_head fd_list; /* list of open fds or fds participating in - write operations */ - gf_boolean_t bad_object; + int need_writeback; /* does the inode need + a writeback to disk? */ + unsigned long currentversion; /* ongoing version */ + + int info_sign; + struct list_head fd_list; /* list of open fds or fds participating in + write operations */ + gf_boolean_t bad_object; } br_stub_inode_ctx_t; typedef struct br_stub_fd { - fd_t *fd; - struct list_head list; - struct bad_object_dir { - DIR *dir; - off_t dir_eof; - } bad_object; + fd_t *fd; + struct list_head list; + struct bad_object_dir { + DIR *dir; + off_t dir_eof; + } bad_object; } br_stub_fd_t; -#define I_DIRTY (1<<0) /* inode needs writeback */ -#define I_MODIFIED (1<<1) -#define WRITEBACK_DURABLE 1 /* writeback is durable */ +#define I_DIRTY (1 << 0) /* inode needs writeback */ +#define I_MODIFIED (1 << 1) +#define WRITEBACK_DURABLE 1 /* writeback is durable */ /** * This could just have been a plain struct without unions and all, * but we may need additional things in the future. */ typedef struct br_stub_local { - call_stub_t *fopstub; /* stub for original fop */ - - int versioningtype; /* not much used atm */ - - union { - struct br_stub_ctx { - fd_t *fd; - uuid_t gfid; - inode_t *inode; - unsigned long version; - } context; - } u; + call_stub_t *fopstub; /* stub for original fop */ + + int versioningtype; /* not much used atm */ + + union { + struct br_stub_ctx { + fd_t *fd; + uuid_t gfid; + inode_t *inode; + unsigned long version; + } context; + } u; } br_stub_local_t; #define BR_STUB_NO_VERSIONING (1 << 0) #define BR_STUB_INCREMENTAL_VERSIONING (1 << 1) typedef struct br_stub_private { - gf_boolean_t go; + gf_boolean_t do_versioning; - uint32_t boot[2]; - char export[PATH_MAX]; + uint32_t boot[2]; + char export[PATH_MAX]; - pthread_mutex_t lock; - pthread_cond_t cond; + pthread_mutex_t lock; + pthread_cond_t cond; - struct list_head squeue; /* ordered signing queue */ - pthread_t signth; - struct bad_objects_container { - pthread_t thread; - pthread_mutex_t bad_lock; - pthread_cond_t bad_cond; - struct list_head bad_queue; - } container; - struct mem_pool *local_pool; + struct list_head squeue; /* ordered signing queue */ + pthread_t signth; + struct bad_objects_container { + pthread_t thread; + pthread_mutex_t bad_lock; + pthread_cond_t bad_cond; + struct list_head bad_queue; + } container; + struct mem_pool *local_pool; - char stub_basepath[PATH_MAX]; + char stub_basepath[BR_PATH_MAX_EXTRA]; - uuid_t bad_object_dir_gfid; + uuid_t bad_object_dir_gfid; } br_stub_private_t; br_stub_fd_t * -br_stub_fd_new (void); - +br_stub_fd_new(void); int -__br_stub_fd_ctx_set (xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd); +__br_stub_fd_ctx_set(xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd); br_stub_fd_t * -__br_stub_fd_ctx_get (xlator_t *this, fd_t *fd); +__br_stub_fd_ctx_get(xlator_t *this, fd_t *fd); br_stub_fd_t * -br_stub_fd_ctx_get (xlator_t *this, fd_t *fd); +br_stub_fd_ctx_get(xlator_t *this, fd_t *fd); int32_t -br_stub_fd_ctx_set (xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd); +br_stub_fd_ctx_set(xlator_t *this, fd_t *fd, br_stub_fd_t *br_stub_fd); static inline gf_boolean_t -__br_stub_is_bad_object (br_stub_inode_ctx_t *ctx) +__br_stub_is_bad_object(br_stub_inode_ctx_t *ctx) { - return ctx->bad_object; + return ctx->bad_object; } static inline void -__br_stub_mark_object_bad (br_stub_inode_ctx_t *ctx) +__br_stub_mark_object_bad(br_stub_inode_ctx_t *ctx) { - ctx->bad_object = _gf_true; + ctx->bad_object = _gf_true; } /* inode writeback helpers */ static inline void -__br_stub_mark_inode_dirty (br_stub_inode_ctx_t *ctx) +__br_stub_mark_inode_dirty(br_stub_inode_ctx_t *ctx) { - ctx->need_writeback |= I_DIRTY; + ctx->need_writeback |= I_DIRTY; } static inline void -__br_stub_mark_inode_synced (br_stub_inode_ctx_t *ctx) +__br_stub_mark_inode_synced(br_stub_inode_ctx_t *ctx) { - ctx->need_writeback &= ~I_DIRTY; + ctx->need_writeback &= ~I_DIRTY; } static inline int -__br_stub_is_inode_dirty (br_stub_inode_ctx_t *ctx) +__br_stub_is_inode_dirty(br_stub_inode_ctx_t *ctx) { - return (ctx->need_writeback & I_DIRTY); + return (ctx->need_writeback & I_DIRTY); } /* inode mofification markers */ static inline void -__br_stub_set_inode_modified (br_stub_inode_ctx_t *ctx) +__br_stub_set_inode_modified(br_stub_inode_ctx_t *ctx) { - ctx->need_writeback |= I_MODIFIED; + ctx->need_writeback |= I_MODIFIED; } static inline void -__br_stub_unset_inode_modified (br_stub_inode_ctx_t *ctx) +__br_stub_unset_inode_modified(br_stub_inode_ctx_t *ctx) { - ctx->need_writeback &= ~I_MODIFIED; + ctx->need_writeback &= ~I_MODIFIED; } static inline int -__br_stub_is_inode_modified (br_stub_inode_ctx_t *ctx) +__br_stub_is_inode_modified(br_stub_inode_ctx_t *ctx) { - return (ctx->need_writeback & I_MODIFIED); + return (ctx->need_writeback & I_MODIFIED); } - static inline int -br_stub_require_release_call (xlator_t *this, fd_t *fd, br_stub_fd_t **fd_ctx) +br_stub_require_release_call(xlator_t *this, fd_t *fd, br_stub_fd_t **fd_ctx) { - int32_t ret = 0; - br_stub_fd_t *br_stub_fd = NULL; + int32_t ret = 0; + br_stub_fd_t *br_stub_fd = NULL; - br_stub_fd = br_stub_fd_new (); - if (!br_stub_fd) - return -1; + br_stub_fd = br_stub_fd_new(); + if (!br_stub_fd) + return -1; - br_stub_fd->fd = fd; - INIT_LIST_HEAD (&br_stub_fd->list); + br_stub_fd->fd = fd; + INIT_LIST_HEAD(&br_stub_fd->list); - ret = br_stub_fd_ctx_set (this, fd, br_stub_fd); - if (ret) - gf_msg (this->name, GF_LOG_WARNING, 0, - BRS_MSG_SET_CONTEXT_FAILED, - "could not set fd context (for release callback"); - else - *fd_ctx = br_stub_fd; + ret = br_stub_fd_ctx_set(this, fd, br_stub_fd); + if (ret) + gf_smsg(this->name, GF_LOG_WARNING, 0, BRS_MSG_SET_CONTEXT_FAILED, + NULL); + else + *fd_ctx = br_stub_fd; - return ret; + return ret; } /* get/set inode context helpers */ static inline int -__br_stub_get_inode_ctx (xlator_t *this, - inode_t *inode, uint64_t *ctx) +__br_stub_get_inode_ctx(xlator_t *this, inode_t *inode, uint64_t *ctx) { - return __inode_ctx_get (inode, this, ctx); + return __inode_ctx_get(inode, this, ctx); } static inline int -br_stub_get_inode_ctx (xlator_t *this, - inode_t *inode, uint64_t *ctx) +br_stub_get_inode_ctx(xlator_t *this, inode_t *inode, uint64_t *ctx) { - int ret = -1; + int ret = -1; - LOCK (&inode->lock); - { - ret = __br_stub_get_inode_ctx (this, inode, ctx); - } - UNLOCK (&inode->lock); + LOCK(&inode->lock); + { + ret = __br_stub_get_inode_ctx(this, inode, ctx); + } + UNLOCK(&inode->lock); - return ret; + return ret; } static inline int -br_stub_set_inode_ctx (xlator_t *this, - inode_t *inode, br_stub_inode_ctx_t *ctx) +br_stub_set_inode_ctx(xlator_t *this, inode_t *inode, br_stub_inode_ctx_t *ctx) { - uint64_t ctx_addr = (uint64_t) ctx; - return inode_ctx_set (inode, this, &ctx_addr); + uint64_t ctx_addr = (uint64_t)(uintptr_t)ctx; + return inode_ctx_set(inode, this, &ctx_addr); } /* version get/set helpers */ static inline unsigned long -__br_stub_writeback_version (br_stub_inode_ctx_t *ctx) +__br_stub_writeback_version(br_stub_inode_ctx_t *ctx) { - return (ctx->currentversion + 1); + return (ctx->currentversion + 1); } static inline void -__br_stub_set_ongoing_version (br_stub_inode_ctx_t *ctx, unsigned long version) +__br_stub_set_ongoing_version(br_stub_inode_ctx_t *ctx, unsigned long version) { - if (ctx->currentversion < version) - ctx->currentversion = version; - else - gf_msg ("bit-rot-stub", GF_LOG_WARNING, 0, - BRS_MSG_CHANGE_VERSION_FAILED, "current version: %lu" - "new version: %lu", ctx->currentversion, version); + if (ctx->currentversion < version) + ctx->currentversion = version; + else + gf_smsg("bit-rot-stub", GF_LOG_WARNING, 0, + BRS_MSG_CHANGE_VERSION_FAILED, "current version=%lu", + ctx->currentversion, "new version=%lu", version, NULL); } static inline int -__br_stub_can_trigger_release (inode_t *inode, - br_stub_inode_ctx_t *ctx, unsigned long *version) +__br_stub_can_trigger_release(inode_t *inode, br_stub_inode_ctx_t *ctx, + unsigned long *version) { - /** - * If the inode is modified, then it has to be dirty. An inode is - * marked dirty once version is increased. Its marked as modified - * when the modification call (write/truncate) which triggered - * the versioning is successful. - */ - if (__br_stub_is_inode_modified (ctx) - && list_empty (&ctx->fd_list) - && (ctx->info_sign != BR_SIGN_REOPEN_WAIT)) { - - GF_ASSERT (__br_stub_is_inode_dirty (ctx) == 0); + /** + * If the inode is modified, then it has to be dirty. An inode is + * marked dirty once version is increased. Its marked as modified + * when the modification call (write/truncate) which triggered + * the versioning is successful. + */ + if (__br_stub_is_inode_modified(ctx) && list_empty(&ctx->fd_list) && + (ctx->info_sign != BR_SIGN_REOPEN_WAIT)) { + GF_ASSERT(__br_stub_is_inode_dirty(ctx) == 0); - if (version) - *version = htonl (ctx->currentversion); - return 1; - } + if (version) + *version = htonl(ctx->currentversion); + return 1; + } - return 0; + return 0; } static inline int32_t -br_stub_get_ongoing_version (xlator_t *this, - inode_t *inode, unsigned long *version) +br_stub_get_ongoing_version(xlator_t *this, inode_t *inode, + unsigned long *version) { - int32_t ret = 0; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - - LOCK (&inode->lock); - { - ret = __inode_ctx_get (inode, this, &ctx_addr); - if (ret < 0) - goto unblock; - ctx = (br_stub_inode_ctx_t *) (long) ctx_addr; - *version = ctx->currentversion; - } - unblock: - UNLOCK (&inode->lock); - - return ret; + int32_t ret = 0; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + + LOCK(&inode->lock); + { + ret = __inode_ctx_get(inode, this, &ctx_addr); + if (ret < 0) + goto unblock; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + *version = ctx->currentversion; + } +unblock: + UNLOCK(&inode->lock); + + return ret; } /** @@ -291,45 +328,52 @@ br_stub_get_ongoing_version (xlator_t *this, * *needs* to be valid in the caller. */ static inline br_stub_inode_ctx_t * -__br_stub_get_ongoing_version_ctx (xlator_t *this, - inode_t *inode, unsigned long *version) +__br_stub_get_ongoing_version_ctx(xlator_t *this, inode_t *inode, + unsigned long *version) { - int32_t ret = 0; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - - ret = __inode_ctx_get (inode, this, &ctx_addr); - if (ret < 0) - return NULL; - ctx = (br_stub_inode_ctx_t *) (long) ctx_addr; - if (version) - *version = ctx->currentversion; - - return ctx; + int32_t ret = 0; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + + ret = __inode_ctx_get(inode, this, &ctx_addr); + if (ret < 0) + return NULL; + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + if (version) + *version = ctx->currentversion; + + return ctx; } /* filter for xattr fetch */ static inline int -br_stub_is_internal_xattr (const char *name) +br_stub_is_internal_xattr(const char *name) { - if (name - && ((strncmp (name, BITROT_CURRENT_VERSION_KEY, - strlen (BITROT_CURRENT_VERSION_KEY)) == 0) - || (strncmp (name, BITROT_SIGNING_VERSION_KEY, - strlen (BITROT_SIGNING_VERSION_KEY)) == 0))) - return 1; - return 0; + if (name && ((strncmp(name, BITROT_CURRENT_VERSION_KEY, + SLEN(BITROT_CURRENT_VERSION_KEY)) == 0) || + (strncmp(name, BITROT_SIGNING_VERSION_KEY, + SLEN(BITROT_SIGNING_VERSION_KEY)) == 0))) + return 1; + return 0; } static inline void -br_stub_remove_vxattrs (dict_t *xattr) +br_stub_remove_vxattrs(dict_t *xattr, gf_boolean_t remove_bad_marker) { - if (xattr) { - dict_del (xattr, BITROT_OBJECT_BAD_KEY); - dict_del (xattr, BITROT_CURRENT_VERSION_KEY); - dict_del (xattr, BITROT_SIGNING_VERSION_KEY); - dict_del (xattr, BITROT_SIGNING_XATTR_SIZE_KEY); - } + if (xattr) { + /* + * When a file is corrupted, bad-object should be + * set in the dict. But, other info such as version, + * signature etc should not be set. Hence the flag + * remove_bad_marker. The consumer should know whether + * to send the bad-object info in the dict or not. + */ + if (remove_bad_marker) + dict_del(xattr, BITROT_OBJECT_BAD_KEY); + dict_del(xattr, BITROT_CURRENT_VERSION_KEY); + dict_del(xattr, BITROT_SIGNING_VERSION_KEY); + dict_del(xattr, BITROT_SIGNING_XATTR_SIZE_KEY); + } } /** @@ -343,64 +387,60 @@ br_stub_remove_vxattrs (dict_t *xattr) * errors can be made into enums. */ static inline int -br_stub_is_bad_object (xlator_t *this, inode_t *inode) +br_stub_is_bad_object(xlator_t *this, inode_t *inode) { - int bad_object = 0; - gf_boolean_t tmp = _gf_false; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - int32_t ret = -1; - - ret = br_stub_get_inode_ctx (this, inode, &ctx_addr); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, - "failed to get the inode context for the inode %s", - uuid_utoa (inode->gfid)); - bad_object = -1; - goto out; - } - - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; - - LOCK (&inode->lock); - { - tmp = __br_stub_is_bad_object (ctx); - if (tmp) - bad_object = -2; - } - UNLOCK (&inode->lock); + int bad_object = 0; + gf_boolean_t tmp = _gf_false; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; + int32_t ret = -1; + + ret = br_stub_get_inode_ctx(this, inode, &ctx_addr); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_GET_INODE_CONTEXT_FAILED, + "inode-gfid=%s", uuid_utoa(inode->gfid), NULL); + bad_object = -1; + goto out; + } + + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + + LOCK(&inode->lock); + { + tmp = __br_stub_is_bad_object(ctx); + if (tmp) + bad_object = -2; + } + UNLOCK(&inode->lock); out: - return bad_object; + return bad_object; } static inline int32_t -br_stub_mark_object_bad (xlator_t *this, inode_t *inode) +br_stub_mark_object_bad(xlator_t *this, inode_t *inode) { - int32_t ret = -1; - uint64_t ctx_addr = 0; - br_stub_inode_ctx_t *ctx = NULL; - - ret = br_stub_get_inode_ctx (this, inode, &ctx_addr); - if (ret) { - gf_msg (this->name, GF_LOG_ERROR, 0, - BRS_MSG_GET_INODE_CONTEXT_FAILED, "failed to get the " - "inode context for the inode %s", - uuid_utoa (inode->gfid)); - goto out; - } + int32_t ret = -1; + uint64_t ctx_addr = 0; + br_stub_inode_ctx_t *ctx = NULL; - ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + ret = br_stub_get_inode_ctx(this, inode, &ctx_addr); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, BRS_MSG_GET_INODE_CONTEXT_FAILED, + "inode-gfid=%s", uuid_utoa(inode->gfid), NULL); + goto out; + } - LOCK (&inode->lock); - { - __br_stub_mark_object_bad (ctx); - } - UNLOCK (&inode->lock); + ctx = (br_stub_inode_ctx_t *)(long)ctx_addr; + + LOCK(&inode->lock); + { + __br_stub_mark_object_bad(ctx); + } + UNLOCK(&inode->lock); out: - return ret; + return ret; } /** @@ -408,56 +448,68 @@ out: * given to the caller and the caller has to decide what to do. */ static inline int32_t -br_stub_mark_xdata_bad_object (xlator_t *this, inode_t *inode, dict_t *xdata) +br_stub_mark_xdata_bad_object(xlator_t *this, inode_t *inode, dict_t *xdata) { - int32_t ret = 0; + int32_t ret = 0; - if (br_stub_is_bad_object (this, inode) == -2) - ret = dict_set_int32 (xdata, GLUSTERFS_BAD_INODE, 1); + if (br_stub_is_bad_object(this, inode) == -2) + ret = dict_set_int32(xdata, GLUSTERFS_BAD_INODE, 1); - return ret; + return ret; } int32_t -br_stub_add_fd_to_inode (xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx); +br_stub_add_fd_to_inode(xlator_t *this, fd_t *fd, br_stub_inode_ctx_t *ctx); br_sign_state_t -__br_stub_inode_sign_state (br_stub_inode_ctx_t *ctx, glusterfs_fop_t fop, - fd_t *fd); +__br_stub_inode_sign_state(br_stub_inode_ctx_t *ctx, glusterfs_fop_t fop, + fd_t *fd); int -br_stub_dir_create (xlator_t *this, br_stub_private_t *priv); +br_stub_dir_create(xlator_t *this, br_stub_private_t *priv); int -br_stub_add (xlator_t *this, uuid_t gfid); +br_stub_add(xlator_t *this, uuid_t gfid); int32_t -br_stub_create_stub_gfid (xlator_t *this, char *stub_gfid_path, uuid_t gfid); +br_stub_create_stub_gfid(xlator_t *this, char *stub_gfid_path, uuid_t gfid); int -br_stub_dir_create (xlator_t *this, br_stub_private_t *priv); +br_stub_dir_create(xlator_t *this, br_stub_private_t *priv); call_stub_t * -__br_stub_dequeue (struct list_head *callstubs); +__br_stub_dequeue(struct list_head *callstubs); void -__br_stub_enqueue (struct list_head *callstubs, call_stub_t *stub); +__br_stub_enqueue(struct list_head *callstubs, call_stub_t *stub); void -br_stub_worker_enqueue (xlator_t *this, call_stub_t *stub); +br_stub_worker_enqueue(xlator_t *this, call_stub_t *stub); void * -br_stub_worker (void *data); +br_stub_worker(void *data); int32_t -br_stub_lookup_wrapper (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *xattr_req); +br_stub_lookup_wrapper(call_frame_t *frame, xlator_t *this, loc_t *loc, + dict_t *xattr_req); int32_t -br_stub_readdir_wrapper (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, dict_t *xdata); +br_stub_readdir_wrapper(call_frame_t *frame, xlator_t *this, fd_t *fd, + size_t size, off_t off, dict_t *xdata); + +int +br_stub_del(xlator_t *this, uuid_t gfid); + +int +br_stub_bad_objects_path(xlator_t *this, fd_t *fd, gf_dirent_t *entries, + dict_t **dict); + +void +br_stub_entry_xattr_fill(xlator_t *this, char *hpath, gf_dirent_t *entry, + dict_t *dict); int -br_stub_del (xlator_t *this, uuid_t gfid); +br_stub_get_path_of_gfid(xlator_t *this, inode_t *parent, inode_t *inode, + uuid_t gfid, char **path); #endif /* __BIT_ROT_STUB_H__ */ |