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authorAnand Avati <avati@gluster.com>2009-10-13 06:42:15 +0000
committerAnand V. Avati <avati@dev.gluster.com>2009-10-13 05:46:47 -0700
commitf085beebd03b2c8be2fa57039ad3cbcb6eaa66d3 (patch)
tree509511c56cf3c9f96b59f959f29817c86841643a /xlators/cluster/afr/src/afr-self-heal-common.c
parentb20cee457232a88517af44ae4505361dd3a4de15 (diff)
prevent spurious unlocks from afr selfheal
afr selfheal now remembers all the nodes on which locks were successfully held and sends unlocks only to those nodes Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 112 (parallel deletion of files mounted by different clients on the same back-end hangs and/or does not completely delete) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=112
Diffstat (limited to 'xlators/cluster/afr/src/afr-self-heal-common.c')
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-common.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c
index 07d6a18b695..b42801cede3 100644
--- a/xlators/cluster/afr/src/afr-self-heal-common.c
+++ b/xlators/cluster/afr/src/afr-self-heal-common.c
@@ -713,7 +713,11 @@ afr_sh_missing_entries_done (call_frame_t *frame, xlator_t *this)
// memset (sh->child_errno, 0, sizeof (int) * priv->child_count);
memset (sh->buf, 0, sizeof (struct stat) * priv->child_count);
-
+
+ for (i = 0; i < priv->child_count; i++) {
+ sh->locked_nodes[i] = 0;
+ }
+
for (i = 0; i < priv->child_count; i++) {
if (sh->xattr[i])
dict_unref (sh->xattr[i]);
@@ -780,12 +784,20 @@ sh_missing_entries_finish (call_frame_t *frame, xlator_t *this)
sh = &local->self_heal;
priv = this->private;
- call_count = local->child_count;
+ for (i = 0; i < priv->child_count; i++) {
+ if (sh->locked_nodes[i])
+ call_count++;
+ }
+
+ if (call_count == 0) {
+ afr_sh_missing_entries_done (frame, this);
+ return 0;
+ }
local->call_count = call_count;
for (i = 0; i < priv->child_count; i++) {
- if (local->child_up[i]) {
+ if (sh->locked_nodes[i]) {
gf_log (this->name, GF_LOG_TRACE,
"unlocking %"PRId64"/%s on subvolume %s",
sh->parent_loc.inode->ino, local->loc.name,
@@ -1284,11 +1296,13 @@ sh_missing_entries_lk_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
if (op_ret == -1) {
sh->op_failed = 1;
+ sh->locked_nodes[child_index] = 0;
gf_log (this->name, GF_LOG_DEBUG,
"locking inode of %s on child %d failed: %s",
local->loc.path, child_index,
strerror (op_errno));
} else {
+ sh->locked_nodes[child_index] = 1;
gf_log (this->name, GF_LOG_TRACE,
"inode of %s on child %d locked",
local->loc.path, child_index);
@@ -1337,12 +1351,13 @@ afr_self_heal_missing_entries (call_frame_t *frame, xlator_t *this)
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
- STACK_WIND (frame, sh_missing_entries_lk_cbk,
- priv->children[i],
- priv->children[i]->fops->entrylk,
- this->name,
- &sh->parent_loc, local->loc.name,
- ENTRYLK_LOCK_NB, ENTRYLK_WRLCK);
+ STACK_WIND_COOKIE (frame, sh_missing_entries_lk_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->entrylk,
+ this->name,
+ &sh->parent_loc, local->loc.name,
+ ENTRYLK_LOCK_NB, ENTRYLK_WRLCK);
if (!--call_count)
break;
}
@@ -1380,6 +1395,7 @@ afr_self_heal (call_frame_t *frame, xlator_t *this,
sh->success = CALLOC (priv->child_count, sizeof (int));
sh->xattr = CALLOC (priv->child_count, sizeof (dict_t *));
sh->sources = CALLOC (sizeof (*sh->sources), priv->child_count);
+ sh->locked_nodes = CALLOC (sizeof (*sh->locked_nodes), priv->child_count);
sh->pending_matrix = CALLOC (sizeof (int32_t *), priv->child_count);
for (i = 0; i < priv->child_count; i++) {