diff options
Diffstat (limited to 'xlators/features/locks/src/common.h')
| -rw-r--r-- | xlators/features/locks/src/common.h | 264 |
1 files changed, 196 insertions, 68 deletions
diff --git a/xlators/features/locks/src/common.h b/xlators/features/locks/src/common.h index d95e287cb94..281223bf3b8 100644 --- a/xlators/features/locks/src/common.h +++ b/xlators/features/locks/src/common.h @@ -1,134 +1,262 @@ /* - Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com> - This file is part of GlusterFS. - - GlusterFS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3 of the License, - or (at your option) any later version. - - GlusterFS is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see - <http://www.gnu.org/licenses/>. -*/ + Copyright (c) 2006-2012, 2015-2016 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 __COMMON_H__ #define __COMMON_H__ +/*dump locks format strings */ +#define RANGE_FMT "type=%s, whence=%hd, start=%llu, len=%llu" +#define ENTRY_FMT "type=%s on basename=%s" +#define DUMP_GEN_FMT "pid = %llu, owner=%s, client=%p" +#define GRNTD_AT "granted at %s" +#define BLKD_AT "blocked at %s" +#define CONN_ID "connection-id=%s" +#define DUMP_BLKD_FMT DUMP_GEN_FMT ", " CONN_ID ", " BLKD_AT +#define DUMP_GRNTD_FMT DUMP_GEN_FMT ", " CONN_ID ", " GRNTD_AT +#define DUMP_BLKD_GRNTD_FMT DUMP_GEN_FMT ", " CONN_ID ", " BLKD_AT ", " GRNTD_AT + +#define ENTRY_BLKD_FMT ENTRY_FMT ", " DUMP_BLKD_FMT +#define ENTRY_GRNTD_FMT ENTRY_FMT ", " DUMP_GRNTD_FMT +#define ENTRY_BLKD_GRNTD_FMT ENTRY_FMT ", " DUMP_BLKD_GRNTD_FMT + +#define RANGE_BLKD_FMT RANGE_FMT ", " DUMP_BLKD_FMT +#define RANGE_GRNTD_FMT RANGE_FMT ", " DUMP_GRNTD_FMT +#define RANGE_BLKD_GRNTD_FMT RANGE_FMT ", " DUMP_BLKD_GRNTD_FMT + #define SET_FLOCK_PID(flock, lock) ((flock)->l_pid = lock->client_pid) + +#define PL_STACK_UNWIND_AND_FREE(__local, fop, frame, op_ret, params...) \ + do { \ + frame->local = NULL; \ + STACK_UNWIND_STRICT(fop, frame, op_ret, params); \ + if (__local) { \ + if (__local->inodelk_dom_count_req) \ + data_unref(__local->inodelk_dom_count_req); \ + loc_wipe(&__local->loc[0]); \ + loc_wipe(&__local->loc[1]); \ + if (__local->fd) \ + fd_unref(__local->fd); \ + if (__local->inode) \ + inode_unref(__local->inode); \ + if (__local->xdata) { \ + dict_unref(__local->xdata); \ + __local->xdata = NULL; \ + } \ + mem_put(__local); \ + } \ + } while (0) + posix_lock_t * -new_posix_lock (struct gf_flock *flock, void *transport, pid_t client_pid, - uint64_t owner, fd_t *fd); +new_posix_lock(struct gf_flock *flock, client_t *client, pid_t client_pid, + gf_lkowner_t *owner, fd_t *fd, uint32_t lk_flags, int blocking, + int32_t *op_errno); pl_inode_t * -pl_inode_get (xlator_t *this, inode_t *inode); +pl_inode_get(xlator_t *this, inode_t *inode, pl_local_t *local); posix_lock_t * -pl_getlk (pl_inode_t *inode, posix_lock_t *lock); +pl_getlk(pl_inode_t *inode, posix_lock_t *lock); + +int +pl_setlk(xlator_t *this, pl_inode_t *inode, posix_lock_t *lock, int can_block); int -pl_setlk (xlator_t *this, pl_inode_t *inode, posix_lock_t *lock, - int can_block); +pl_lock_preempt(pl_inode_t *pl_inode, posix_lock_t *reqlock); void -grant_blocked_locks (xlator_t *this, pl_inode_t *inode); +grant_blocked_locks(xlator_t *this, pl_inode_t *inode); void -posix_lock_to_flock (posix_lock_t *lock, struct gf_flock *flock); +posix_lock_to_flock(posix_lock_t *lock, struct gf_flock *flock); int -locks_overlap (posix_lock_t *l1, posix_lock_t *l2); +locks_overlap(posix_lock_t *l1, posix_lock_t *l2); int -same_owner (posix_lock_t *l1, posix_lock_t *l2); +same_owner(posix_lock_t *l1, posix_lock_t *l2); -void __delete_lock (pl_inode_t *, posix_lock_t *); +void +__delete_lock(posix_lock_t *); -void __destroy_lock (posix_lock_t *); +void +__destroy_lock(posix_lock_t *); pl_dom_list_t * -get_domain (pl_inode_t *pl_inode, const char *volume); +get_domain(pl_inode_t *pl_inode, const char *volume); + +void +grant_blocked_inode_locks(xlator_t *this, pl_inode_t *pl_inode, + pl_dom_list_t *dom, struct timespec *now, + struct list_head *contend); + +void +inodelk_contention_notify(xlator_t *this, struct list_head *contend); + +void +__delete_inode_lock(pl_inode_lock_t *lock); void -grant_blocked_inode_locks (xlator_t *this, pl_inode_t *pl_inode, pl_dom_list_t *dom); +__pl_inodelk_unref(pl_inode_lock_t *lock); void -__delete_inode_lock (pl_inode_lock_t *lock); +__grant_blocked_inode_locks(xlator_t *this, pl_inode_t *pl_inode, + struct list_head *granted, pl_dom_list_t *dom, + struct timespec *now, struct list_head *contend); void -__destroy_inode_lock (pl_inode_lock_t *lock); +unwind_granted_inodes(xlator_t *this, pl_inode_t *pl_inode, + struct list_head *granted); void -grant_blocked_entry_locks (xlator_t *this, pl_inode_t *pl_inode, - pl_entry_lock_t *unlocked, pl_dom_list_t *dom); +grant_blocked_entry_locks(xlator_t *this, pl_inode_t *pl_inode, + pl_dom_list_t *dom, struct timespec *now, + struct list_head *contend); -void pl_update_refkeeper (xlator_t *this, inode_t *inode); +void +entrylk_contention_notify(xlator_t *this, struct list_head *contend); + +void +pl_update_refkeeper(xlator_t *this, inode_t *inode); int32_t -get_inodelk_count (xlator_t *this, inode_t *inode); +__get_inodelk_count(xlator_t *this, pl_inode_t *pl_inode, char *domname); +int32_t +get_inodelk_count(xlator_t *this, inode_t *inode, char *domname); int32_t -get_entrylk_count (xlator_t *this, inode_t *inode); +__get_entrylk_count(xlator_t *this, pl_inode_t *pl_inode); +int32_t +get_entrylk_count(xlator_t *this, inode_t *inode); -void pl_trace_in (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, - int cmd, struct gf_flock *flock, const char *domain); +void +pl_trace_in(xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, int cmd, + struct gf_flock *flock, const char *domain); -void pl_trace_out (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, - int cmd, struct gf_flock *flock, int op_ret, int op_errno, const char *domain); +void +pl_trace_out(xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, int cmd, + struct gf_flock *flock, int op_ret, int op_errno, + const char *domain); -void pl_trace_block (xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, - int cmd, struct gf_flock *flock, const char *domain); +void +pl_trace_block(xlator_t *this, call_frame_t *frame, fd_t *fd, loc_t *loc, + int cmd, struct gf_flock *flock, const char *domain); -void pl_trace_flush (xlator_t *this, call_frame_t *frame, fd_t *fd); +void +pl_trace_flush(xlator_t *this, call_frame_t *frame, fd_t *fd); -void entrylk_trace_in (xlator_t *this, call_frame_t *frame, const char *volume, - fd_t *fd, loc_t *loc, const char *basename, - entrylk_cmd cmd, entrylk_type type); +void +entrylk_trace_in(xlator_t *this, call_frame_t *frame, const char *volume, + fd_t *fd, loc_t *loc, const char *basename, entrylk_cmd cmd, + entrylk_type type); -void entrylk_trace_out (xlator_t *this, call_frame_t *frame, const char *volume, - fd_t *fd, loc_t *loc, const char *basename, - entrylk_cmd cmd, entrylk_type type, - int op_ret, int op_errno); +void +entrylk_trace_out(xlator_t *this, call_frame_t *frame, const char *volume, + fd_t *fd, loc_t *loc, const char *basename, entrylk_cmd cmd, + entrylk_type type, int op_ret, int op_errno); -void entrylk_trace_block (xlator_t *this, call_frame_t *frame, const char *volume, - fd_t *fd, loc_t *loc, const char *basename, - entrylk_cmd cmd, entrylk_type type); +void +entrylk_trace_block(xlator_t *this, call_frame_t *frame, const char *volume, + fd_t *fd, loc_t *loc, const char *basename, entrylk_cmd cmd, + entrylk_type type); void -pl_print_verdict (char *str, int size, int op_ret, int op_errno); +pl_print_verdict(char *str, int size, int op_ret, int op_errno); void -pl_print_lockee (char *str, int size, fd_t *fd, loc_t *loc); +pl_print_lockee(char *str, int size, fd_t *fd, loc_t *loc); void -pl_print_locker (char *str, int size, xlator_t *this, call_frame_t *frame); +pl_print_locker(char *str, int size, xlator_t *this, call_frame_t *frame); void -pl_print_inodelk (char *str, int size, int cmd, struct gf_flock *flock, const char *domain); +pl_print_inodelk(char *str, int size, int cmd, struct gf_flock *flock, + const char *domain); void -pl_trace_release (xlator_t *this, fd_t *fd); +pl_trace_release(xlator_t *this, fd_t *fd); unsigned long -fd_to_fdnum (fd_t *fd); +fd_to_fdnum(fd_t *fd); fd_t * -fd_from_fdnum (posix_lock_t *lock); +fd_from_fdnum(posix_lock_t *lock); + +int +pl_reserve_setlk(xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *lock, + int can_block); +int +reservelks_equal(posix_lock_t *l1, posix_lock_t *l2); int -pl_reserve_setlk (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *lock, - int can_block); +pl_verify_reservelk(xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *lock, + int can_block); int -reservelks_equal (posix_lock_t *l1, posix_lock_t *l2); +pl_reserve_unlock(xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *reqlock); + +int32_t +check_entrylk_on_basename(xlator_t *this, inode_t *parent, char *basename); + +void +__pl_inodelk_unref(pl_inode_lock_t *lock); +void +__pl_entrylk_unref(pl_entry_lock_t *lock); int -pl_verify_reservelk (xlator_t *this, pl_inode_t *pl_inode, - posix_lock_t *lock, int can_block); +pl_metalock_is_active(pl_inode_t *pl_inode); + +void +__pl_queue_lock(pl_inode_t *pl_inode, posix_lock_t *reqlock); + +void +inodelk_contention_notify_check(xlator_t *xl, pl_inode_lock_t *lock, + struct timespec *now, + struct list_head *contend); + +void +entrylk_contention_notify_check(xlator_t *xl, pl_entry_lock_t *lock, + struct timespec *now, + struct list_head *contend); + +gf_boolean_t +pl_does_monkey_want_stuck_lock(); + +gf_boolean_t +pl_is_mandatory_locking_enabled(pl_inode_t *pl_inode); + +void +pl_clean_local(pl_local_t *local); + int -pl_reserve_unlock (xlator_t *this, pl_inode_t *pl_inode, posix_lock_t *reqlock); +pl_local_init(call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd); + +gf_boolean_t +pl_is_lk_owner_valid(gf_lkowner_t *owner, client_t *client); + +int32_t +pl_inode_remove_prepare(xlator_t *xl, call_frame_t *frame, loc_t *loc, + pl_inode_t **ppl_inode, struct list_head *contend); + +int32_t +pl_inode_remove_complete(xlator_t *xl, pl_inode_t *pl_inode, call_stub_t *stub, + struct list_head *contend); + +void +pl_inode_remove_wake(struct list_head *list); + +void +pl_inode_remove_cbk(xlator_t *xl, pl_inode_t *pl_inode, int32_t error); + +void +pl_inode_remove_unlocked(xlator_t *xl, pl_inode_t *pl_inode, + struct list_head *list); + +int32_t +pl_inode_remove_inodelk(pl_inode_t *pl_inode, pl_inode_lock_t *lock); + #endif /* __COMMON_H__ */ |