From e50fc8f4e7eb51386f47bea9e6ca8d8490c09003 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Tue, 5 Sep 2017 13:30:53 +0530 Subject: features/shard: Increment counts in locks Problem: Because create_count/eexist_count are incremented without locks, all the shards may not be created because call_count will be lesser than what it needs to be. This can lead to crash in shard_common_inode_write_do() because inode on which we want to do fd_anonymous() is NULL Fix: Increment the counts in frame->lock Change-Id: Ibc87dcb1021e9f4ac2929f662da07aa7662ab0d6 BUG: 1488354 Signed-off-by: Pranith Kumar K Reviewed-on: https://review.gluster.org/18203 Smoke: Gluster Build System Reviewed-by: Krutika Dhananjay CentOS-regression: Gluster Build System --- xlators/features/shard/src/shard.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/xlators/features/shard/src/shard.c b/xlators/features/shard/src/shard.c index adf5da0d398..2892bded312 100644 --- a/xlators/features/shard/src/shard.c +++ b/xlators/features/shard/src/shard.c @@ -1703,7 +1703,11 @@ shard_common_lookup_shards_cbk (call_frame_t *frame, void *cookie, case GF_FOP_FALLOCATE: if ((!local->first_lookup_done) && (op_errno == ENOENT)) { - local->create_count++; + LOCK (&frame->lock); + { + local->create_count++; + } + UNLOCK (&frame->lock); goto done; } break; @@ -3270,7 +3274,11 @@ shard_common_mknod_cbk (call_frame_t *frame, void *cookie, xlator_t *this, if (op_ret < 0) { if (op_errno == EEXIST) { - local->eexist_count++; + LOCK (&frame->lock); + { + local->eexist_count++; + } + UNLOCK (&frame->lock); } else { local->op_ret = op_ret; local->op_errno = op_errno; -- cgit