diff options
author | Pranith Kumar K <pkarampu@redhat.com> | 2014-03-24 22:54:03 +0530 |
---|---|---|
committer | Anand Avati <avati@redhat.com> | 2014-04-02 10:50:32 -0700 |
commit | e75be8977ede9b9174d20b39c427e6fb4ccde567 (patch) | |
tree | 974d602b551d7d981fa6e1aeeea34e424252927e /xlators/cluster/afr/src/afr-common.c | |
parent | 1c1b8269d994c0885d753c8f0da8d5154876c7ae (diff) |
cluster/afr: Remove eager-lock stub on finodelk failure
Problem:
For write fops afr's transaction eager-lock init adds transactions
that can share eager-lock to fdctx list. But if eager-lock finodelk
fop fails the stub remains in the list. This could later lead to
corruption of the list and lead to infinite loop on the list
leading to a mount hang.
Fix:
Remove the stub when finodelk fails.
Change-Id: I0ed4bc6b62f26c5e891c1181a6871ee6e4f4f5fd
BUG: 1063190
Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
Reviewed-on: http://review.gluster.org/6944
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Ravishankar N <ravishankar@redhat.com>
Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/cluster/afr/src/afr-common.c')
-rw-r--r-- | xlators/cluster/afr/src/afr-common.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr-common.c b/xlators/cluster/afr/src/afr-common.c index 2bab0f8533d..6bd23160048 100644 --- a/xlators/cluster/afr/src/afr-common.c +++ b/xlators/cluster/afr/src/afr-common.c @@ -889,6 +889,15 @@ afr_replies_wipe (afr_local_t *local, afr_private_t *priv) memset (local->replies, 0, sizeof(*local->replies) * priv->child_count); } +void +afr_remove_eager_lock_stub (afr_local_t *local) +{ + LOCK (&local->fd->lock); + { + list_del_init (&local->transaction.eager_locked); + } + UNLOCK (&local->fd->lock); +} void afr_local_cleanup (afr_local_t *local, xlator_t *this) @@ -900,6 +909,10 @@ afr_local_cleanup (afr_local_t *local, xlator_t *this) syncbarrier_destroy (&local->barrier); + if (local->transaction.eager_lock_on && + !list_empty (&local->transaction.eager_locked)) + afr_remove_eager_lock_stub (local); + afr_local_transaction_cleanup (local, this); priv = this->private; @@ -2106,6 +2119,12 @@ afr_cleanup_fd_ctx (xlator_t *this, fd_t *fd) fd_ctx = (afr_fd_ctx_t *)(long) ctx; if (fd_ctx) { + //no need to take any locks + if (!list_empty (&fd_ctx->eager_locked)) + gf_log (this->name, GF_LOG_WARNING, "%s: Stale " + "Eager-lock stubs found", + uuid_utoa (fd->inode->gfid)); + for (i = 0; i < AFR_NUM_CHANGE_LOGS; i++) GF_FREE (fd_ctx->pre_op_done[i]); |