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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-entry.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-entry.c')
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-entry.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-entry.c b/xlators/cluster/afr/src/afr-self-heal-entry.c
index b44418dd6..5953fce15 100644
--- a/xlators/cluster/afr/src/afr-self-heal-entry.c
+++ b/xlators/cluster/afr/src/afr-self-heal-entry.c
@@ -56,6 +56,7 @@ afr_sh_entry_done (call_frame_t *frame, xlator_t *this)
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
+ int i = 0;
local = frame->local;
sh = &local->self_heal;
@@ -65,6 +66,14 @@ afr_sh_entry_done (call_frame_t *frame, xlator_t *this)
TODO: cleanup sh->*
*/
+ if (sh->healing_fd)
+ fd_unref (sh->healing_fd);
+ sh->healing_fd = NULL;
+
+ for (i = 0; i < priv->child_count; i++) {
+ sh->locked_nodes[i] = 0;
+ }
+
gf_log (this->name, GF_LOG_TRACE,
"self heal of %s completed",
local->loc.path);
@@ -107,9 +116,6 @@ afr_sh_entry_unlck_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
call_count = afr_frame_return (frame);
if (call_count == 0) {
- if (sh->healing_fd)
- fd_unref (sh->healing_fd);
- sh->healing_fd = NULL;
afr_sh_entry_done (frame, this);
}
@@ -132,12 +138,20 @@ afr_sh_entry_unlock (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_entry_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 %s on subvolume %s",
local->loc.path, priv->children[i]->name);
@@ -1977,11 +1991,13 @@ afr_sh_entry_lock_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);