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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-metadata.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-metadata.c')
-rw-r--r--xlators/cluster/afr/src/afr-self-heal-metadata.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/xlators/cluster/afr/src/afr-self-heal-metadata.c b/xlators/cluster/afr/src/afr-self-heal-metadata.c
index 9e8e995b4..9842902e6 100644
--- a/xlators/cluster/afr/src/afr-self-heal-metadata.c
+++ b/xlators/cluster/afr/src/afr-self-heal-metadata.c
@@ -64,7 +64,11 @@ afr_sh_metadata_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);
memset (sh->success, 0, sizeof (int) * priv->child_count);
-
+
+ for (i = 0; i < priv->child_count; i++) {
+ sh->locked_nodes[i] = 1;
+ }
+
for (i = 0; i < priv->child_count; i++) {
if (sh->xattr[i])
dict_unref (sh->xattr[i]);
@@ -137,7 +141,16 @@ afr_sh_metadata_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_metadata_done (frame, this);
+ return 0;
+ }
+
local->call_count = call_count;
for (i = 0; i < priv->child_count; i++) {
@@ -145,7 +158,7 @@ afr_sh_metadata_finish (call_frame_t *frame, xlator_t *this)
flock.l_len = 0;
flock.l_type = F_UNLCK;
- 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);
@@ -712,11 +725,13 @@ afr_sh_metadata_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 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);