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-rw-r--r--xlators/cluster/afr/src/pump.c2472
1 files changed, 0 insertions, 2472 deletions
diff --git a/xlators/cluster/afr/src/pump.c b/xlators/cluster/afr/src/pump.c
deleted file mode 100644
index d322a9d67b5..00000000000
--- a/xlators/cluster/afr/src/pump.c
+++ /dev/null
@@ -1,2472 +0,0 @@
-/*
- Copyright (c) 2008-2012 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 <unistd.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <fnmatch.h>
-
-#include "afr-common.c"
-#include "defaults.h"
-#include "glusterfs.h"
-#include "pump.h"
-#include "afr-messages.h"
-
-
-static int
-afr_set_dict_gfid (dict_t *dict, uuid_t gfid)
-{
- int ret = 0;
- uuid_t *pgfid = NULL;
-
- GF_ASSERT (gfid);
-
- pgfid = GF_CALLOC (1, sizeof (uuid_t), gf_common_mt_char);
- if (!pgfid) {
- ret = -1;
- goto out;
- }
-
- gf_uuid_copy (*pgfid, gfid);
-
- ret = dict_set_dynptr (dict, "gfid-req", pgfid, sizeof (uuid_t));
- if (ret)
- gf_msg (THIS->name, GF_LOG_ERROR, -ret,
- AFR_MSG_DICT_SET_FAILED, "gfid set failed");
-
-out:
- if (ret && pgfid)
- GF_FREE (pgfid);
- return ret;
-}
-
-static int
-afr_set_root_gfid (dict_t *dict)
-{
- uuid_t gfid;
- int ret = 0;
-
- memset (gfid, 0, 16);
- gfid[15] = 1;
-
- ret = afr_set_dict_gfid (dict, gfid);
-
- return ret;
-}
-
-static int
-afr_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name)
-{
- int ret = -1;
- uuid_t pargfid = {0};
-
- if (!child)
- goto out;
-
- if (!gf_uuid_is_null (parent->inode->gfid))
- gf_uuid_copy (pargfid, parent->inode->gfid);
- else if (!gf_uuid_is_null (parent->gfid))
- gf_uuid_copy (pargfid, parent->gfid);
-
- if (gf_uuid_is_null (pargfid))
- goto out;
-
- if (strcmp (parent->path, "/") == 0)
- ret = gf_asprintf ((char **)&child->path, "/%s", name);
- else
- ret = gf_asprintf ((char **)&child->path, "%s/%s", parent->path,
- name);
-
- if (-1 == ret) {
- }
-
- child->name = strrchr (child->path, '/');
- if (child->name)
- child->name++;
-
- child->parent = inode_ref (parent->inode);
- child->inode = inode_new (parent->inode->table);
- gf_uuid_copy (child->pargfid, pargfid);
-
- if (!child->inode) {
- ret = -1;
- goto out;
- }
-
- ret = 0;
-out:
- if ((ret == -1) && child)
- loc_wipe (child);
-
- return ret;
-}
-
-static void
-afr_build_root_loc (xlator_t *this, loc_t *loc)
-{
- afr_private_t *priv = NULL;
-
- priv = this->private;
- loc->path = gf_strdup ("/");
- loc->name = "";
- loc->inode = inode_ref (priv->root_inode);
- gf_uuid_copy (loc->gfid, loc->inode->gfid);
-}
-
-static void
-afr_update_loc_gfids (loc_t *loc, struct iatt *buf, struct iatt *postparent)
-{
- GF_ASSERT (loc);
- GF_ASSERT (buf);
-
- gf_uuid_copy (loc->gfid, buf->ia_gfid);
- if (postparent)
- gf_uuid_copy (loc->pargfid, postparent->ia_gfid);
-}
-
-static uint64_t pump_pid = 0;
-static void
-pump_fill_loc_info (loc_t *loc, struct iatt *iatt, struct iatt *parent)
-{
- afr_update_loc_gfids (loc, iatt, parent);
- gf_uuid_copy (loc->inode->gfid, iatt->ia_gfid);
-}
-
-static int
-pump_mark_start_pending (xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- pump_priv->pump_start_pending = 1;
-
- return 0;
-}
-
-static int
-is_pump_start_pending (xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- return (pump_priv->pump_start_pending);
-}
-
-static int
-pump_remove_start_pending (xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- pump_priv->pump_start_pending = 0;
-
- return 0;
-}
-
-static pump_state_t
-pump_get_state ()
-{
- xlator_t *this = NULL;
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- pump_state_t ret;
-
- this = THIS;
- priv = this->private;
- pump_priv = priv->pump_private;
-
- LOCK (&pump_priv->pump_state_lock);
- {
- ret = pump_priv->pump_state;
- }
- UNLOCK (&pump_priv->pump_state_lock);
-
- return ret;
-}
-
-int
-pump_change_state (xlator_t *this, pump_state_t state)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- pump_state_t state_old;
- pump_state_t state_new;
-
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- GF_ASSERT (pump_priv);
-
- LOCK (&pump_priv->pump_state_lock);
- {
- state_old = pump_priv->pump_state;
- state_new = state;
-
- pump_priv->pump_state = state;
-
- }
- UNLOCK (&pump_priv->pump_state_lock);
-
- gf_msg_debug (this->name, 0,
- "Pump changing state from %d to %d",
- state_old, state_new);
-
- return 0;
-}
-
-static int
-pump_set_resume_path (xlator_t *this, const char *path)
-{
- int ret = 0;
-
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- GF_ASSERT (pump_priv);
-
- LOCK (&pump_priv->resume_path_lock);
- {
- strncpy (pump_priv->resume_path, path, strlen (path) + 1);
- }
- UNLOCK (&pump_priv->resume_path_lock);
-
- return ret;
-}
-
-static int
-pump_save_path (xlator_t *this, const char *path)
-{
- afr_private_t *priv = NULL;
- pump_state_t state;
- dict_t *dict = NULL;
- loc_t loc = {0};
- int dict_ret = 0;
- int ret = -1;
-
- state = pump_get_state ();
- if (state == PUMP_STATE_RESUME)
- return 0;
-
- priv = this->private;
-
- GF_ASSERT (priv->root_inode);
-
- afr_build_root_loc (this, &loc);
-
- dict = dict_new ();
- dict_ret = dict_set_str (dict, PUMP_PATH, (char *)path);
- if (dict_ret)
- gf_msg (this->name, GF_LOG_WARNING,
- -dict_ret, AFR_MSG_DICT_SET_FAILED,
- "%s: failed to set the key %s", path, PUMP_PATH);
-
- ret = syncop_setxattr (PUMP_SOURCE_CHILD (this), &loc, dict, 0, NULL,
- NULL);
-
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_INFO, -ret, AFR_MSG_INFO_COMMON,
- "setxattr failed - could not save path=%s", path);
- } else {
- gf_msg_debug (this->name, 0,
- "setxattr succeeded - saved path=%s", path);
- }
-
- dict_unref (dict);
-
- loc_wipe (&loc);
- return 0;
-}
-
-static int
-pump_check_and_update_status (xlator_t *this)
-{
- pump_state_t state;
- int ret = -1;
-
- state = pump_get_state ();
-
- switch (state) {
-
- case PUMP_STATE_RESUME:
- case PUMP_STATE_RUNNING:
- {
- ret = 0;
- break;
- }
- case PUMP_STATE_PAUSE:
- {
- ret = -1;
- break;
- }
- case PUMP_STATE_ABORT:
- {
- pump_save_path (this, "/");
- ret = -1;
- break;
- }
- default:
- {
- gf_msg_debug (this->name, 0,
- "Unknown pump state");
- ret = -1;
- break;
- }
-
- }
-
- return ret;
-}
-
-static const char *
-pump_get_resume_path (xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- const char *resume_path = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- resume_path = pump_priv->resume_path;
-
- return resume_path;
-}
-
-static int
-pump_update_resume_state (xlator_t *this, const char *path)
-{
- pump_state_t state;
- const char *resume_path = NULL;
-
- state = pump_get_state ();
-
- if (state == PUMP_STATE_RESUME) {
- resume_path = pump_get_resume_path (this);
- if (strcmp (resume_path, "/") == 0) {
- gf_msg_debug (this->name, 0,
- "Reached the resume path (/). Proceeding to change state"
- " to running");
-
- pump_change_state (this, PUMP_STATE_RUNNING);
- } else if (strcmp (resume_path, path) == 0) {
- gf_msg_debug (this->name, 0,
- "Reached the resume path. Proceeding to change state"
- " to running");
-
- pump_change_state (this, PUMP_STATE_RUNNING);
- } else {
- gf_msg_debug (this->name, 0,
- "Not yet hit the resume path:res-path=%s,path=%s",
- resume_path, path);
- }
- }
-
- return 0;
-}
-
-static gf_boolean_t
-is_pump_traversal_allowed (xlator_t *this, const char *path)
-{
- pump_state_t state;
- const char *resume_path = NULL;
- gf_boolean_t ret = _gf_true;
-
- state = pump_get_state ();
-
- if (state == PUMP_STATE_RESUME) {
- resume_path = pump_get_resume_path (this);
- if (strstr (resume_path, path)) {
- gf_msg_debug (this->name, 0,
- "On the right path to resumption path");
- ret = _gf_true;
- } else {
- gf_msg_debug (this->name, 0,
- "Not the right path to resuming=> ignoring traverse");
- ret = _gf_false;
- }
- }
-
- return ret;
-}
-
-static int
-pump_save_file_stats (xlator_t *this, const char *path)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- LOCK (&pump_priv->resume_path_lock);
- {
- pump_priv->number_files_pumped++;
-
- strncpy (pump_priv->current_file, path,
- PATH_MAX);
- }
- UNLOCK (&pump_priv->resume_path_lock);
-
- return 0;
-}
-
-static int
-gf_pump_traverse_directory (loc_t *loc)
-{
- xlator_t *this = NULL;
- fd_t *fd = NULL;
- off_t offset = 0;
- loc_t entry_loc = {0};
- gf_dirent_t *entry = NULL;
- gf_dirent_t *tmp = NULL;
- gf_dirent_t entries;
- struct iatt iatt = {0};
- struct iatt parent = {0};
- dict_t *xattr_rsp = NULL;
- int ret = 0;
- gf_boolean_t is_directory_empty = _gf_true;
- gf_boolean_t free_entries = _gf_false;
-
- INIT_LIST_HEAD (&entries.list);
- this = THIS;
-
- GF_ASSERT (loc->inode);
-
- fd = fd_create (loc->inode, pump_pid);
- if (!fd) {
- gf_msg (this->name, GF_LOG_ERROR, 0, AFR_MSG_FD_CREATE_FAILED,
- "Failed to create fd for %s", loc->path);
- goto out;
- }
-
- ret = syncop_opendir (this, loc, fd, NULL, NULL);
- if (ret < 0) {
- gf_msg_debug (this->name, 0,
- "opendir failed on %s", loc->path);
- goto out;
- }
-
- gf_msg_trace (this->name, 0,
- "pump opendir on %s returned=%d",
- loc->path, ret);
-
- while (syncop_readdirp (this, fd, 131072, offset, &entries, NULL,
- NULL)) {
- free_entries = _gf_true;
-
- if (list_empty (&entries.list)) {
- gf_msg_trace (this->name, 0,
- "no more entries in directory");
- goto out;
- }
-
- list_for_each_entry_safe (entry, tmp, &entries.list, list) {
- gf_msg_debug (this->name, 0,
- "found readdir entry=%s", entry->d_name);
-
- offset = entry->d_off;
- if (gf_uuid_is_null (entry->d_stat.ia_gfid)) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- AFR_MSG_GFID_NULL, "%s/%s: No "
- "gfid present skipping",
- loc->path, entry->d_name);
- continue;
- }
- loc_wipe (&entry_loc);
- ret = afr_build_child_loc (this, &entry_loc, loc,
- entry->d_name);
- if (ret)
- goto out;
-
- if ((strcmp (entry->d_name, ".") == 0) ||
- (strcmp (entry->d_name, "..") == 0))
- continue;
-
- is_directory_empty = _gf_false;
- gf_msg_debug (this->name, 0,
- "lookup %s => %"PRId64,
- entry_loc.path,
- iatt.ia_ino);
-
- ret = syncop_lookup (this, &entry_loc, &iatt, &parent,
- NULL, &xattr_rsp);
-
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR,
- -ret, AFR_MSG_INFO_COMMON,
- "%s: lookup failed", entry_loc.path);
- continue;
- }
-
- ret = afr_selfheal_name (this, loc->gfid, entry->d_name,
- NULL);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- AFR_MSG_SELF_HEAL_FAILED,
- "%s: name self-heal failed (%s/%s)",
- entry_loc.path, uuid_utoa (loc->gfid),
- entry->d_name);
- continue;
- }
-
- ret = afr_selfheal (this, iatt.ia_gfid);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- AFR_MSG_SELF_HEAL_FAILED,
- "%s: self-heal failed (%s)",
- entry_loc.path,
- uuid_utoa (iatt.ia_gfid));
- continue;
- }
-
- pump_fill_loc_info (&entry_loc, &iatt, &parent);
-
- pump_update_resume_state (this, entry_loc.path);
-
- pump_save_path (this, entry_loc.path);
- pump_save_file_stats (this, entry_loc.path);
-
- ret = pump_check_and_update_status (this);
- if (ret < 0) {
- gf_msg_debug (this->name, 0,
- "Pump beginning to exit out");
- goto out;
- }
-
- if (IA_ISDIR (iatt.ia_type)) {
- if (is_pump_traversal_allowed (this, entry_loc.path)) {
- gf_msg_trace (this->name, 0,
- "entering dir=%s",
- entry->d_name);
- gf_pump_traverse_directory (&entry_loc);
- }
- }
- }
-
- gf_dirent_free (&entries);
- free_entries = _gf_false;
- gf_msg_trace (this->name, 0, "offset incremented to %d",
- (int32_t) offset);
-
- }
-
- ret = syncop_close (fd);
- if (ret < 0)
- gf_msg_debug (this->name, 0, "closing the fd failed");
-
- if (is_directory_empty && (strcmp (loc->path, "/") == 0)) {
- pump_change_state (this, PUMP_STATE_RUNNING);
- gf_msg (this->name, GF_LOG_INFO, 0, AFR_MSG_INFO_COMMON,
- "Empty source brick. Nothing to be done.");
- }
-
-out:
- if (entry_loc.path)
- loc_wipe (&entry_loc);
- if (free_entries)
- gf_dirent_free (&entries);
- return 0;
-}
-
-static int
-pump_update_resume_path (xlator_t *this)
-{
- const char *resume_path = NULL;
-
- resume_path = pump_get_resume_path (this);
-
- if (resume_path) {
- gf_msg_debug (this->name, 0,
- "Found a path to resume from: %s",
- resume_path);
-
- }else {
- gf_msg_debug (this->name, 0,
- "Did not find a path=> setting to '/'");
- pump_set_resume_path (this, "/");
- }
-
- pump_change_state (this, PUMP_STATE_RESUME);
-
- return 0;
-}
-
-static int32_t
-pump_xattr_cleaner (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- loc_t loc = {0};
- int i = 0;
- int ret = 0;
- int source = 0;
- int sink = 1;
-
- priv = this->private;
-
- afr_build_root_loc (this, &loc);
-
- ret = syncop_removexattr (priv->children[source], &loc,
- PUMP_PATH, 0, NULL);
-
- ret = syncop_removexattr (priv->children[sink], &loc,
- PUMP_SINK_COMPLETE, 0, NULL);
-
- for (i = 0; i < priv->child_count; i++) {
- ret = syncop_removexattr (priv->children[i], &loc,
- PUMP_SOURCE_COMPLETE, 0, NULL);
- if (ret) {
- gf_msg_debug (this->name, 0, "removexattr "
- "failed with %s", strerror (-ret));
- }
- }
-
- loc_wipe (&loc);
- return pump_command_reply (frame, this);
-}
-
-static int
-pump_complete_migration (xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
- dict_t *dict = NULL;
- pump_state_t state;
- loc_t loc = {0};
- int dict_ret = 0;
- int ret = -1;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- GF_ASSERT (priv->root_inode);
-
- afr_build_root_loc (this, &loc);
-
- dict = dict_new ();
-
- state = pump_get_state ();
- if (state == PUMP_STATE_RUNNING) {
- gf_msg_debug (this->name, 0,
- "Pump finished pumping");
-
- pump_priv->pump_finished = _gf_true;
-
- dict_ret = dict_set_str (dict, PUMP_SOURCE_COMPLETE, "jargon");
- if (dict_ret)
- gf_msg (this->name, GF_LOG_WARNING, -dict_ret,
- AFR_MSG_DICT_SET_FAILED,
- "%s: failed to set the key %s",
- loc.path, PUMP_SOURCE_COMPLETE);
-
- ret = syncop_setxattr (PUMP_SOURCE_CHILD (this), &loc, dict, 0,
- NULL, NULL);
- if (ret < 0) {
- gf_msg_debug (this->name, 0,
- "setxattr failed - while "
- "notifying source complete");
- }
- dict_ret = dict_set_str (dict, PUMP_SINK_COMPLETE, "jargon");
- if (dict_ret)
- gf_msg (this->name, GF_LOG_WARNING, -dict_ret,
- AFR_MSG_DICT_SET_FAILED,
- "%s: failed to set the key %s",
- loc.path, PUMP_SINK_COMPLETE);
-
- ret = syncop_setxattr (PUMP_SINK_CHILD (this), &loc, dict, 0,
- NULL, NULL);
- if (ret < 0) {
- gf_msg_debug (this->name, 0,
- "setxattr failed - while "
- "notifying sink complete");
- }
-
- pump_save_path (this, "/");
-
- } else if (state == PUMP_STATE_ABORT) {
- gf_msg_debug (this->name, 0, "Starting cleanup "
- "of pump internal xattrs");
- call_resume (pump_priv->cleaner);
- }
-
- loc_wipe (&loc);
- return 0;
-}
-
-static int
-pump_lookup_sink (loc_t *loc)
-{
- xlator_t *this = NULL;
- struct iatt iatt, parent;
- dict_t *xattr_rsp;
- dict_t *xattr_req = NULL;
- int ret = 0;
-
- this = THIS;
-
- xattr_req = dict_new ();
-
- ret = afr_set_root_gfid (xattr_req);
- if (ret)
- goto out;
-
- ret = syncop_lookup (PUMP_SINK_CHILD (this), loc, &iatt, &parent,
- xattr_req, &xattr_rsp);
-
- if (ret) {
- gf_msg_debug (this->name, 0,
- "Lookup on sink child failed");
- ret = -1;
- goto out;
- }
-
-out:
- if (xattr_req)
- dict_unref (xattr_req);
-
- return ret;
-}
-
-static int
-pump_task (void *data)
-{
- xlator_t *this = NULL;
- afr_private_t *priv = NULL;
-
-
- loc_t loc = {0};
- struct iatt iatt, parent;
- dict_t *xattr_rsp = NULL;
- dict_t *xattr_req = NULL;
-
- int ret = -1;
-
- this = THIS;
- priv = this->private;
-
- GF_ASSERT (priv->root_inode);
-
- afr_build_root_loc (this, &loc);
- xattr_req = dict_new ();
- if (!xattr_req) {
- gf_msg_debug (this->name, ENOMEM,
- "Out of memory");
- ret = -1;
- goto out;
- }
-
- afr_set_root_gfid (xattr_req);
- ret = syncop_lookup (this, &loc, &iatt, &parent,
- xattr_req, &xattr_rsp);
-
- gf_msg_trace (this->name, 0,
- "lookup: path=%s gfid=%s",
- loc.path, uuid_utoa (loc.inode->gfid));
-
- ret = pump_check_and_update_status (this);
- if (ret < 0) {
- goto out;
- }
-
- pump_update_resume_path (this);
-
- afr_set_root_gfid (xattr_req);
- ret = pump_lookup_sink (&loc);
- if (ret) {
- pump_update_resume_path (this);
- goto out;
- }
-
- gf_pump_traverse_directory (&loc);
-
- pump_complete_migration (this);
-out:
- if (xattr_req)
- dict_unref (xattr_req);
-
- loc_wipe (&loc);
- return 0;
-}
-
-
-static int
-pump_task_completion (int ret, call_frame_t *sync_frame, void *data)
-{
- xlator_t *this = NULL;
- afr_private_t *priv = NULL;
-
- this = THIS;
-
- priv = this->private;
-
- inode_unref (priv->root_inode);
- STACK_DESTROY (sync_frame->root);
-
- gf_msg_debug (this->name, 0,
- "Pump xlator exiting");
- return 0;
-}
-
-int
-pump_start (call_frame_t *pump_frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- int ret = -1;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- afr_set_lk_owner (pump_frame, this, pump_frame->root);
- pump_pid = (uint64_t) (unsigned long)pump_frame->root;
-
- ret = synctask_new (pump_priv->env, pump_task,
- pump_task_completion,
- pump_frame, NULL);
- if (ret == -1) {
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "setting pump as started lk_owner: %s %"PRIu64,
- lkowner_utoa (&pump_frame->root->lk_owner), pump_pid);
-
- priv->use_afr_in_pump = 1;
-out:
- return ret;
-}
-
-static int
-pump_start_synctask (xlator_t *this)
-{
- call_frame_t *frame = NULL;
- int ret = 0;
-
- frame = create_frame (this, this->ctx->pool);
- if (!frame) {
- ret = -1;
- goto out;
- }
-
- pump_change_state (this, PUMP_STATE_RUNNING);
-
- ret = pump_start (frame, this);
-
-out:
- return ret;
-}
-
-int32_t
-pump_cmd_start_setxattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno, dict_t *xdata)
-
-{
- call_frame_t *prev = NULL;
- afr_local_t *local = NULL;
- int ret = 0;
-
- local = frame->local;
-
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- AFR_MSG_INFO_COMMON,
- "Could not initiate destination "
- "brick connect");
- ret = op_ret;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Successfully initiated destination "
- "brick connect");
-
- pump_mark_start_pending (this);
-
- /* send the PARENT_UP as pump is ready now */
- prev = cookie;
- if (prev && prev->this)
- prev->this->notify (prev->this, GF_EVENT_PARENT_UP, this);
-
-out:
- local->op_ret = ret;
- pump_command_reply (frame, this);
-
- return 0;
-}
-
-static int
-pump_initiate_sink_connect (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
- afr_private_t *priv = NULL;
- dict_t *dict = NULL;
- data_t *data = NULL;
- char *clnt_cmd = NULL;
- loc_t loc = {0};
-
- int ret = 0;
-
- priv = this->private;
- local = frame->local;
-
- GF_ASSERT (priv->root_inode);
-
- afr_build_root_loc (this, &loc);
-
- data = data_ref (dict_get (local->dict, RB_PUMP_CMD_START));
- if (!data) {
- ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
- AFR_MSG_DICT_GET_FAILED,
- "Could not get destination brick value");
- goto out;
- }
-
- dict = dict_new ();
- if (!dict) {
- ret = -1;
- goto out;
- }
-
- clnt_cmd = GF_CALLOC (1, data->len+1, gf_common_mt_char);
- if (!clnt_cmd) {
- ret = -1;
- goto out;
- }
-
- memcpy (clnt_cmd, data->data, data->len);
- clnt_cmd[data->len] = '\0';
- gf_msg_debug (this->name, 0, "Got destination brick %s\n",
- clnt_cmd);
-
- ret = dict_set_dynstr (dict, CLIENT_CMD_CONNECT, clnt_cmd);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, -ret,
- AFR_MSG_DICT_SET_FAILED,
- "Could not inititiate destination brick "
- "connect");
- goto out;
- }
-
- STACK_WIND (frame,
- pump_cmd_start_setxattr_cbk,
- PUMP_SINK_CHILD(this),
- PUMP_SINK_CHILD(this)->fops->setxattr,
- &loc,
- dict,
- 0, NULL);
-
- ret = 0;
-
-out:
- if (dict)
- dict_unref (dict);
-
- if (data)
- data_unref (data);
-
- if (ret && clnt_cmd)
- GF_FREE (clnt_cmd);
-
- loc_wipe (&loc);
- return ret;
-}
-
-static int
-is_pump_aborted (xlator_t *this)
-{
- pump_state_t state;
-
- state = pump_get_state ();
-
- return ((state == PUMP_STATE_ABORT));
-}
-
-int32_t
-pump_cmd_start_getxattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- dict_t *dict, dict_t *xdata)
-{
- afr_local_t *local = NULL;
- char *path = NULL;
-
- pump_state_t state;
- int ret = 0;
- int need_unwind = 0;
- int dict_ret = -1;
-
- local = frame->local;
-
- if (op_ret < 0) {
- gf_msg_debug (this->name, 0,
- "getxattr failed - changing pump "
- "state to RUNNING with '/'");
- path = "/";
- ret = op_ret;
- } else {
- gf_msg_trace (this->name, 0,
- "getxattr succeeded");
-
- dict_ret = dict_get_str (dict, PUMP_PATH, &path);
- if (dict_ret < 0)
- path = "/";
- }
-
- state = pump_get_state ();
- if ((state == PUMP_STATE_RUNNING) ||
- (state == PUMP_STATE_RESUME)) {
- gf_msg (this->name, GF_LOG_ERROR,
- 0, AFR_MSG_PUMP_XLATOR_ERROR,
- "Pump is already started");
- ret = -1;
- goto out;
- }
-
- pump_set_resume_path (this, path);
-
- if (is_pump_aborted (this))
- /* We're re-starting pump afresh */
- ret = pump_initiate_sink_connect (frame, this);
- else {
- /* We're re-starting pump from a previous
- pause */
- gf_msg_debug (this->name, 0,
- "about to start synctask");
- ret = pump_start_synctask (this);
- need_unwind = 1;
- }
-
-out:
- if ((ret < 0) || (need_unwind == 1)) {
- local->op_ret = ret;
- pump_command_reply (frame, this);
- }
- return 0;
-}
-
-int
-pump_execute_status (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- uint64_t number_files = 0;
-
- char filename[PATH_MAX];
- char summary[PATH_MAX+256];
- char *dict_str = NULL;
-
- int32_t op_ret = 0;
- int32_t op_errno = 0;
-
- dict_t *dict = NULL;
- int ret = -1;
-
- priv = this->private;
- pump_priv = priv->pump_private;
-
- LOCK (&pump_priv->resume_path_lock);
- {
- number_files = pump_priv->number_files_pumped;
- strncpy (filename, pump_priv->current_file, PATH_MAX);
- }
- UNLOCK (&pump_priv->resume_path_lock);
-
- dict_str = GF_CALLOC (1, PATH_MAX + 256, gf_afr_mt_char);
- if (!dict_str) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- if (pump_priv->pump_finished) {
- snprintf (summary, PATH_MAX+256,
- "no_of_files=%"PRIu64, number_files);
- } else {
- snprintf (summary, PATH_MAX+256,
- "no_of_files=%"PRIu64":current_file=%s",
- number_files, filename);
- }
- snprintf (dict_str, PATH_MAX+256, "status=%d:%s",
- (pump_priv->pump_finished)?1:0, summary);
-
- dict = dict_new ();
-
- ret = dict_set_dynstr (dict, RB_PUMP_CMD_STATUS, dict_str);
- if (ret < 0) {
- gf_msg_debug (this->name, 0,
- "dict_set_dynstr returned negative value");
- } else {
- dict_str = NULL;
- }
-
- op_ret = 0;
-
-out:
-
- AFR_STACK_UNWIND (getxattr, frame, op_ret, op_errno, dict, NULL);
-
- if (dict)
- dict_unref (dict);
-
- GF_FREE (dict_str);
-
- return 0;
-}
-
-int
-pump_execute_pause (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- pump_change_state (this, PUMP_STATE_PAUSE);
-
- local->op_ret = 0;
- pump_command_reply (frame, this);
-
- return 0;
-}
-
-int
-pump_execute_start (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- afr_local_t *local = NULL;
-
- int ret = 0;
- loc_t loc = {0};
-
- priv = this->private;
- local = frame->local;
-
- if (!priv->root_inode) {
- gf_msg (this->name, GF_LOG_ERROR,
- 0, AFR_MSG_PUMP_XLATOR_ERROR,
- "Pump xlator cannot be started without an initial "
- "lookup");
- ret = -1;
- goto out;
- }
-
- GF_ASSERT (priv->root_inode);
-
- afr_build_root_loc (this, &loc);
-
- STACK_WIND (frame,
- pump_cmd_start_getxattr_cbk,
- PUMP_SOURCE_CHILD(this),
- PUMP_SOURCE_CHILD(this)->fops->getxattr,
- &loc,
- PUMP_PATH, NULL);
-
- ret = 0;
-
-out:
- if (ret < 0) {
- local->op_ret = ret;
- pump_command_reply (frame, this);
- }
-
- loc_wipe (&loc);
- return 0;
-}
-
-static int
-pump_cleanup_helper (void *data) {
- call_frame_t *frame = data;
-
- pump_xattr_cleaner (frame, 0, frame->this, 0, 0, NULL);
-
- return 0;
-}
-
-static int
-pump_cleanup_done (int ret, call_frame_t *sync_frame, void *data)
-{
- STACK_DESTROY (sync_frame->root);
-
- return 0;
-}
-
-int
-pump_execute_commit (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
- afr_local_t *local = NULL;
- call_frame_t *sync_frame = NULL;
- int ret = 0;
-
- priv = this->private;
- pump_priv = priv->pump_private;
- local = frame->local;
-
- local->op_ret = 0;
- if (pump_priv->pump_finished) {
- pump_change_state (this, PUMP_STATE_COMMIT);
- sync_frame = create_frame (this, this->ctx->pool);
- ret = synctask_new (pump_priv->env, pump_cleanup_helper,
- pump_cleanup_done, sync_frame, frame);
- if (ret) {
- gf_msg_debug (this->name, 0, "Couldn't create "
- "synctask for cleaning up xattrs.");
- }
-
- } else {
- gf_msg (this->name, GF_LOG_ERROR, EINPROGRESS,
- AFR_MSG_MIGRATION_IN_PROGRESS,
- "Commit can't proceed. Migration in progress");
- local->op_ret = -1;
- local->op_errno = EINPROGRESS;
- pump_command_reply (frame, this);
- }
-
- return 0;
-}
-int
-pump_execute_abort (call_frame_t *frame, xlator_t *this)
-{
- afr_private_t *priv = NULL;
- pump_private_t *pump_priv = NULL;
- afr_local_t *local = NULL;
- call_frame_t *sync_frame = NULL;
- int ret = 0;
-
- priv = this->private;
- pump_priv = priv->pump_private;
- local = frame->local;
-
- pump_change_state (this, PUMP_STATE_ABORT);
-
- LOCK (&pump_priv->resume_path_lock);
- {
- pump_priv->number_files_pumped = 0;
- pump_priv->current_file[0] = '\0';
- }
- UNLOCK (&pump_priv->resume_path_lock);
-
- local->op_ret = 0;
- if (pump_priv->pump_finished) {
- sync_frame = create_frame (this, this->ctx->pool);
- ret = synctask_new (pump_priv->env, pump_cleanup_helper,
- pump_cleanup_done, sync_frame, frame);
- if (ret) {
- gf_msg_debug (this->name, 0, "Couldn't create "
- "synctask for cleaning up xattrs.");
- }
-
- } else {
- pump_priv->cleaner = fop_setxattr_cbk_stub (frame,
- pump_xattr_cleaner,
- 0, 0, NULL);
- }
-
- return 0;
-}
-
-gf_boolean_t
-pump_command_status (xlator_t *this, dict_t *dict)
-{
- char *cmd = NULL;
- int dict_ret = -1;
- int ret = _gf_true;
-
- dict_ret = dict_get_str (dict, RB_PUMP_CMD_STATUS, &cmd);
- if (dict_ret < 0) {
- gf_msg_debug (this->name, 0,
- "Not a pump status command");
- ret = _gf_false;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Hit a pump command - status");
- ret = _gf_true;
-
-out:
- return ret;
-
-}
-
-gf_boolean_t
-pump_command_pause (xlator_t *this, dict_t *dict)
-{
- char *cmd = NULL;
- int dict_ret = -1;
- int ret = _gf_true;
-
- dict_ret = dict_get_str (dict, RB_PUMP_CMD_PAUSE, &cmd);
- if (dict_ret < 0) {
- gf_msg_debug (this->name, 0,
- "Not a pump pause command");
- ret = _gf_false;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Hit a pump command - pause");
- ret = _gf_true;
-
-out:
- return ret;
-
-}
-
-gf_boolean_t
-pump_command_commit (xlator_t *this, dict_t *dict)
-{
- char *cmd = NULL;
- int dict_ret = -1;
- int ret = _gf_true;
-
- dict_ret = dict_get_str (dict, RB_PUMP_CMD_COMMIT, &cmd);
- if (dict_ret < 0) {
- gf_msg_debug (this->name, 0,
- "Not a pump commit command");
- ret = _gf_false;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Hit a pump command - commit");
- ret = _gf_true;
-
-out:
- return ret;
-
-}
-
-gf_boolean_t
-pump_command_abort (xlator_t *this, dict_t *dict)
-{
- char *cmd = NULL;
- int dict_ret = -1;
- int ret = _gf_true;
-
- dict_ret = dict_get_str (dict, RB_PUMP_CMD_ABORT, &cmd);
- if (dict_ret < 0) {
- gf_msg_debug (this->name, 0,
- "Not a pump abort command");
- ret = _gf_false;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Hit a pump command - abort");
- ret = _gf_true;
-
-out:
- return ret;
-
-}
-
-gf_boolean_t
-pump_command_start (xlator_t *this, dict_t *dict)
-{
- char *cmd = NULL;
- int dict_ret = -1;
- int ret = _gf_true;
-
- dict_ret = dict_get_str (dict, RB_PUMP_CMD_START, &cmd);
- if (dict_ret < 0) {
- gf_msg_debug (this->name, 0,
- "Not a pump start command");
- ret = _gf_false;
- goto out;
- }
-
- gf_msg_debug (this->name, 0,
- "Hit a pump command - start");
- ret = _gf_true;
-
-out:
- return ret;
-
-}
-
-int
-pump_getxattr (call_frame_t *frame, xlator_t *this, loc_t *loc,
- const char *name, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- int op_errno = 0;
- int ret = 0;
-
- priv = this->private;
-
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_getxattr_cbk,
- FIRST_CHILD (this),
- (FIRST_CHILD (this))->fops->getxattr,
- loc, name, xdata);
- return 0;
- }
-
- if (name) {
- if (!strncmp (name, AFR_XATTR_PREFIX,
- strlen (AFR_XATTR_PREFIX))) {
-
- op_errno = ENODATA;
- ret = -1;
- goto out;
- }
-
- if (!strcmp (name, RB_PUMP_CMD_STATUS)) {
- gf_msg_debug (this->name, 0,
- "Hit pump command - status");
- pump_execute_status (frame, this);
- goto out;
- }
- }
-
- afr_getxattr (frame, this, loc, name, xdata);
-
-out:
- if (ret < 0)
- AFR_STACK_UNWIND (getxattr, frame, -1, op_errno, NULL, NULL);
- return 0;
-}
-
-int
-pump_command_reply (call_frame_t *frame, xlator_t *this)
-{
- afr_local_t *local = NULL;
-
- local = frame->local;
-
- if (local->op_ret < 0)
- gf_msg (this->name, GF_LOG_INFO,
- 0, AFR_MSG_INFO_COMMON,
- "Command failed");
- else
- gf_msg (this->name, GF_LOG_INFO,
- 0, AFR_MSG_INFO_COMMON,
- "Command succeeded");
-
- AFR_STACK_UNWIND (setxattr,
- frame,
- local->op_ret,
- local->op_errno, NULL);
-
- return 0;
-}
-
-int
-pump_parse_command (call_frame_t *frame, xlator_t *this, dict_t *dict,
- int *op_errno_p)
-{
- afr_local_t *local = NULL;
- int ret = -1;
- int op_errno = 0;
-
- if (pump_command_start (this, dict)) {
- local = AFR_FRAME_INIT (frame, op_errno);
- if (!local)
- goto out;
- local->dict = dict_ref (dict);
- ret = pump_execute_start (frame, this);
-
- } else if (pump_command_pause (this, dict)) {
- local = AFR_FRAME_INIT (frame, op_errno);
- if (!local)
- goto out;
- local->dict = dict_ref (dict);
- ret = pump_execute_pause (frame, this);
-
- } else if (pump_command_abort (this, dict)) {
- local = AFR_FRAME_INIT (frame, op_errno);
- if (!local)
- goto out;
- local->dict = dict_ref (dict);
- ret = pump_execute_abort (frame, this);
-
- } else if (pump_command_commit (this, dict)) {
- local = AFR_FRAME_INIT (frame, op_errno);
- if (!local)
- goto out;
- local->dict = dict_ref (dict);
- ret = pump_execute_commit (frame, this);
- }
-out:
- if (op_errno_p)
- *op_errno_p = op_errno;
- return ret;
-}
-
-int
-pump_setxattr (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *dict,
- int32_t flags, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- int ret = -1;
- int op_errno = 0;
-
- GF_IF_INTERNAL_XATTR_GOTO ("trusted.glusterfs.pump*", dict, op_errno, out);
-
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_setxattr_cbk,
- FIRST_CHILD (this),
- (FIRST_CHILD (this))->fops->setxattr,
- loc, dict, flags, xdata);
- return 0;
- }
-
- ret = pump_parse_command (frame, this, dict, &op_errno);
- if (ret >= 0)
- goto out;
-
- afr_setxattr (frame, this, loc, dict, flags, xdata);
-
- ret = 0;
-out:
- if (ret < 0) {
- AFR_STACK_UNWIND (setxattr, frame, -1, op_errno, NULL);
- }
-
- return 0;
-}
-
-/* Defaults */
-static int32_t
-pump_lookup (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- dict_t *xattr_req)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_lookup_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->lookup,
- loc,
- xattr_req);
- return 0;
- }
-
- afr_lookup (frame, this, loc, xattr_req);
- return 0;
-}
-
-
-static int32_t
-pump_truncate (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- off_t offset, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_truncate_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->truncate,
- loc,
- offset, xdata);
- return 0;
- }
-
- afr_truncate (frame, this, loc, offset, xdata);
- return 0;
-}
-
-
-static int32_t
-pump_ftruncate (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- off_t offset, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_ftruncate_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->ftruncate,
- fd,
- offset, xdata);
- return 0;
- }
-
- afr_ftruncate (frame, this, fd, offset, xdata);
- return 0;
-}
-
-
-
-
-int
-pump_mknod (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, dev_t rdev, mode_t umask, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_mknod_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->mknod,
- loc, mode, rdev, umask, xdata);
- return 0;
- }
- afr_mknod (frame, this, loc, mode, rdev, umask, xdata);
- return 0;
-
-}
-
-
-
-int
-pump_mkdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, mode_t umask, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_mkdir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->mkdir,
- loc, mode, umask, xdata);
- return 0;
- }
- afr_mkdir (frame, this, loc, mode, umask, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_unlink (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc, int xflag, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_unlink_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->unlink,
- loc, xflag, xdata);
- return 0;
- }
- afr_unlink (frame, this, loc, xflag, xdata);
- return 0;
-
-}
-
-
-static int
-pump_rmdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int flags, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
-
- priv = this->private;
-
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_rmdir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->rmdir,
- loc, flags, xdata);
- return 0;
- }
-
- afr_rmdir (frame, this, loc, flags, xdata);
- return 0;
-
-}
-
-
-
-int
-pump_symlink (call_frame_t *frame, xlator_t *this,
- const char *linkpath, loc_t *loc, mode_t umask, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_symlink_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->symlink,
- linkpath, loc, umask, xdata);
- return 0;
- }
- afr_symlink (frame, this, linkpath, loc, umask, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_rename (call_frame_t *frame,
- xlator_t *this,
- loc_t *oldloc,
- loc_t *newloc, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_rename_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->rename,
- oldloc, newloc, xdata);
- return 0;
- }
- afr_rename (frame, this, oldloc, newloc, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_link (call_frame_t *frame,
- xlator_t *this,
- loc_t *oldloc,
- loc_t *newloc, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_link_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->link,
- oldloc, newloc, xdata);
- return 0;
- }
- afr_link (frame, this, oldloc, newloc, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_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)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame, default_create_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->create,
- loc, flags, mode, umask, fd, xdata);
- return 0;
- }
- afr_create (frame, this, loc, flags, mode, umask, fd, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_open (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- int32_t flags, fd_t *fd, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_open_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->open,
- loc, flags, fd, xdata);
- return 0;
- }
- afr_open (frame, this, loc, flags, fd, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_writev (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- struct iovec *vector,
- int32_t count,
- off_t off, uint32_t flags,
- struct iobref *iobref, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_writev_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->writev,
- fd,
- vector,
- count,
- off, flags,
- iobref, xdata);
- return 0;
- }
-
- afr_writev (frame, this, fd, vector, count, off, flags, iobref, xdata);
- return 0;
-}
-
-
-static int32_t
-pump_flush (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_flush_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->flush,
- fd, xdata);
- return 0;
- }
- afr_flush (frame, this, fd, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_fsync (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- int32_t flags, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_fsync_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->fsync,
- fd,
- flags, xdata);
- return 0;
- }
- afr_fsync (frame, this, fd, flags, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_opendir (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc, fd_t *fd, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_opendir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->opendir,
- loc, fd, xdata);
- return 0;
- }
- afr_opendir (frame, this, loc, fd, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_fsyncdir (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- int32_t flags, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_fsyncdir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->fsyncdir,
- fd,
- flags, xdata);
- return 0;
- }
- afr_fsyncdir (frame, this, fd, flags, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_xattrop (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- gf_xattrop_flags_t flags,
- dict_t *dict, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_xattrop_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->xattrop,
- loc,
- flags,
- dict, xdata);
- return 0;
- }
- afr_xattrop (frame, this, loc, flags, dict, xdata);
- return 0;
-
-}
-
-static int32_t
-pump_fxattrop (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- gf_xattrop_flags_t flags,
- dict_t *dict, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_fxattrop_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->fxattrop,
- fd,
- flags,
- dict, xdata);
- return 0;
- }
- afr_fxattrop (frame, this, fd, flags, dict, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_removexattr (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- const char *name, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- int op_errno = -1;
-
- VALIDATE_OR_GOTO (this, out);
-
- GF_IF_NATIVE_XATTR_GOTO ("trusted.glusterfs.pump*",
- name, op_errno, out);
-
- op_errno = 0;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_removexattr_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->removexattr,
- loc,
- name, xdata);
- return 0;
- }
- afr_removexattr (frame, this, loc, name, xdata);
-
- out:
- if (op_errno)
- AFR_STACK_UNWIND (removexattr, frame, -1, op_errno, NULL);
- return 0;
-
-}
-
-
-
-static int32_t
-pump_readdir (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- size_t size,
- off_t off, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_readdir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->readdir,
- fd, size, off, xdata);
- return 0;
- }
- afr_readdir (frame, this, fd, size, off, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_readdirp (call_frame_t *frame, xlator_t *this, fd_t *fd,
- size_t size, off_t off, dict_t *dict)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_readdirp_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->readdirp,
- fd, size, off, dict);
- return 0;
- }
- afr_readdirp (frame, this, fd, size, off, dict);
- return 0;
-
-}
-
-
-
-static int32_t
-pump_releasedir (xlator_t *this,
- fd_t *fd)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (priv->use_afr_in_pump)
- afr_releasedir (this, fd);
- return 0;
-
-}
-
-static int32_t
-pump_release (xlator_t *this,
- fd_t *fd)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (priv->use_afr_in_pump)
- afr_release (this, fd);
- return 0;
-
-}
-
-static int32_t
-pump_forget (xlator_t *this, inode_t *inode)
-{
- afr_private_t *priv = NULL;
-
- priv = this->private;
- if (priv->use_afr_in_pump)
- afr_forget (this, inode);
-
- return 0;
-}
-
-static int32_t
-pump_setattr (call_frame_t *frame,
- xlator_t *this,
- loc_t *loc,
- struct iatt *stbuf,
- int32_t valid, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_setattr_cbk,
- FIRST_CHILD (this),
- FIRST_CHILD (this)->fops->setattr,
- loc, stbuf, valid, xdata);
- return 0;
- }
- afr_setattr (frame, this, loc, stbuf, valid, xdata);
- return 0;
-
-}
-
-
-static int32_t
-pump_fsetattr (call_frame_t *frame,
- xlator_t *this,
- fd_t *fd,
- struct iatt *stbuf,
- int32_t valid, dict_t *xdata)
-{
- afr_private_t *priv = NULL;
- priv = this->private;
- if (!priv->use_afr_in_pump) {
- STACK_WIND (frame,
- default_fsetattr_cbk,
- FIRST_CHILD (this),
- FIRST_CHILD (this)->fops->fsetattr,
- fd, stbuf, valid, xdata);
- return 0;
- }
- afr_fsetattr (frame, this, fd, stbuf, valid, xdata);
- return 0;
-
-}
-
-
-/* End of defaults */
-
-
-int32_t
-mem_acct_init (xlator_t *this)
-{
- int ret = -1;
-
- if (!this)
- return ret;
-
- ret = xlator_mem_acct_init (this, gf_afr_mt_end + 1);
-
- if (ret != 0) {
- return ret;
- }
-
- return ret;
-}
-
-static int
-is_xlator_pump_sink (xlator_t *child)
-{
- return (child == PUMP_SINK_CHILD(THIS));
-}
-
-static int
-is_xlator_pump_source (xlator_t *child)
-{
- return (child == PUMP_SOURCE_CHILD(THIS));
-}
-
-int32_t
-notify (xlator_t *this, int32_t event,
- void *data, ...)
-{
- int ret = -1;
- xlator_t *child_xl = NULL;
-
- child_xl = (xlator_t *) data;
-
- ret = afr_notify (this, event, data, NULL);
-
- switch (event) {
- case GF_EVENT_CHILD_DOWN:
- if (is_xlator_pump_source (child_xl))
- pump_change_state (this, PUMP_STATE_ABORT);
- break;
-
- case GF_EVENT_CHILD_UP:
- if (is_xlator_pump_sink (child_xl))
- if (is_pump_start_pending (this)) {
- gf_msg_debug (this->name, 0,
- "about to start synctask");
- ret = pump_start_synctask (this);
- if (ret < 0)
- gf_msg_debug (this->name, 0,
- "Could not start pump "
- "synctask");
- else
- pump_remove_start_pending (this);
- }
- }
-
- return ret;
-}
-
-int32_t
-init (xlator_t *this)
-{
- afr_private_t * priv = NULL;
- pump_private_t *pump_priv = NULL;
- int child_count = 0;
- xlator_list_t * trav = NULL;
- int i = 0;
- int ret = -1;
- GF_UNUSED int op_errno = 0;
-
- int source_child = 0;
-
- if (!this->children) {
- gf_msg (this->name, GF_LOG_ERROR,
- 0, AFR_MSG_CHILD_MISCONFIGURED,
- "pump translator needs a source and sink"
- "subvolumes defined.");
- return -1;
- }
-
- if (!this->parents) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- AFR_MSG_VOL_MISCONFIGURED, "Volume is dangling.");
- }
-
- priv = GF_CALLOC (1, sizeof (afr_private_t), gf_afr_mt_afr_private_t);
- if (!priv)
- goto out;
-
- LOCK_INIT (&priv->lock);
-
- child_count = xlator_subvolume_count (this);
- if (child_count != 2) {
- gf_msg (this->name, GF_LOG_ERROR,
- 0, AFR_MSG_CHILD_MISCONFIGURED,
- "There should be exactly 2 children - one source "
- "and one sink");
- LOCK_DESTROY (&priv->lock);
- GF_FREE (priv);
- return -1;
- }
- priv->child_count = child_count;
-
- priv->read_child = source_child;
- priv->favorite_child = source_child;
- priv->background_self_heal_count = 0;
-
- priv->data_self_heal = "on";
- priv->metadata_self_heal = 1;
- priv->entry_self_heal = 1;
-
- priv->data_self_heal_window_size = 16;
-
- priv->data_change_log = 1;
- priv->metadata_change_log = 1;
- priv->entry_change_log = 1;
- priv->use_afr_in_pump = 1;
- priv->sh_readdir_size = 65536;
-
- /* Locking options */
-
- /* Lock server count infact does not matter. Locks are held
- on all subvolumes, in this case being the source
- and the sink.
- */
-
- priv->child_up = GF_CALLOC (sizeof (unsigned char), child_count,
- gf_afr_mt_char);
- if (!priv->child_up) {
- op_errno = ENOMEM;
- goto out;
- }
-
- priv->children = GF_CALLOC (sizeof (xlator_t *), child_count,
- gf_afr_mt_xlator_t);
- if (!priv->children) {
- op_errno = ENOMEM;
- goto out;
- }
-
- priv->pending_key = GF_CALLOC (sizeof (*priv->pending_key),
- child_count,
- gf_afr_mt_char);
- if (!priv->pending_key) {
- op_errno = ENOMEM;
- goto out;
- }
-
- trav = this->children;
- i = 0;
- while (i < child_count) {
- priv->children[i] = trav->xlator;
-
- ret = gf_asprintf (&priv->pending_key[i], "%s.%s",
- AFR_XATTR_PREFIX,
- trav->xlator->name);
- if (-1 == ret) {
- op_errno = ENOMEM;
- goto out;
- }
-
- trav = trav->next;
- i++;
- }
-
- ret = gf_asprintf (&priv->sh_domain, "%s-self-heal", this->name);
- if (-1 == ret) {
- op_errno = ENOMEM;
- goto out;
- }
-
- priv->root_inode = NULL;
-
- priv->last_event = GF_CALLOC (child_count, sizeof (*priv->last_event),
- gf_afr_mt_int32_t);
- if (!priv->last_event) {
- ret = -ENOMEM;
- goto out;
- }
-
- pump_priv = GF_CALLOC (1, sizeof (*pump_priv),
- gf_afr_mt_pump_priv);
- if (!pump_priv) {
- op_errno = ENOMEM;
- goto out;
- }
-
- LOCK_INIT (&pump_priv->resume_path_lock);
- LOCK_INIT (&pump_priv->pump_state_lock);
-
- pump_priv->resume_path = GF_CALLOC (1, PATH_MAX,
- gf_afr_mt_char);
- if (!pump_priv->resume_path) {
- ret = -1;
- goto out;
- }
-
- pump_priv->env = this->ctx->env;
- if (!pump_priv->env) {
- ret = -1;
- goto out;
- }
-
- /* keep more local here as we may need them for self-heal etc */
- this->local_pool = mem_pool_new (afr_local_t, 128);
- if (!this->local_pool) {
- ret = -1;
- goto out;
- }
-
- priv->pump_private = pump_priv;
- pump_priv = NULL;
-
- this->private = priv;
- priv = NULL;
-
- pump_change_state (this, PUMP_STATE_ABORT);
-
- ret = 0;
-out:
-
- if (pump_priv) {
- GF_FREE (pump_priv->resume_path);
- LOCK_DESTROY (&pump_priv->resume_path_lock);
- LOCK_DESTROY (&pump_priv->pump_state_lock);
- GF_FREE (pump_priv);
- }
-
- if (priv) {
- GF_FREE (priv->child_up);
- GF_FREE (priv->children);
- GF_FREE (priv->pending_key);
- GF_FREE (priv->last_event);
- LOCK_DESTROY (&priv->lock);
- GF_FREE (priv);
- }
-
- return ret;
-}
-
-int
-fini (xlator_t *this)
-{
- afr_private_t * priv = NULL;
- pump_private_t *pump_priv = NULL;
-
- priv = this->private;
- this->private = NULL;
- if (!priv)
- goto out;
-
- pump_priv = priv->pump_private;
- if (!pump_priv)
- goto afr_priv;
-
- GF_FREE (pump_priv->resume_path);
- LOCK_DESTROY (&pump_priv->resume_path_lock);
- LOCK_DESTROY (&pump_priv->pump_state_lock);
- GF_FREE (pump_priv);
-afr_priv:
- afr_priv_destroy (priv);
-out:
- return 0;
-}
-
-
-struct xlator_fops fops = {
- .lookup = pump_lookup,
- .open = pump_open,
- .flush = pump_flush,
- .fsync = pump_fsync,
- .fsyncdir = pump_fsyncdir,
- .xattrop = pump_xattrop,
- .fxattrop = pump_fxattrop,
- .getxattr = pump_getxattr,
-
- /* inode write */
- .writev = pump_writev,
- .truncate = pump_truncate,
- .ftruncate = pump_ftruncate,
- .setxattr = pump_setxattr,
- .setattr = pump_setattr,
- .fsetattr = pump_fsetattr,
- .removexattr = pump_removexattr,
-
- /* dir read */
- .opendir = pump_opendir,
- .readdir = pump_readdir,
- .readdirp = pump_readdirp,
-
- /* dir write */
- .create = pump_create,
- .mknod = pump_mknod,
- .mkdir = pump_mkdir,
- .unlink = pump_unlink,
- .rmdir = pump_rmdir,
- .link = pump_link,
- .symlink = pump_symlink,
- .rename = pump_rename,
-};
-
-struct xlator_dumpops dumpops = {
- .priv = afr_priv_dump,
-};
-
-
-struct xlator_cbks cbks = {
- .release = pump_release,
- .releasedir = pump_releasedir,
- .forget = pump_forget,
-};
-
-struct volume_options options[] = {
- { .key = {NULL} },
-};
generated by cgit (git 2.34.1) at 2024-11-15 16:16:49 +0000