Btrfs: fix a deadlock in aborting transaction due to ENOSPC
authorLiu Bo <[email protected]>
Mon, 5 Nov 2012 12:42:08 +0000 (12:42 +0000)
committerJosef Bacik <[email protected]>
Wed, 12 Dec 2012 22:15:25 +0000 (17:15 -0500)
commit37c4146d2208ba7e4463e8dd95a1bf9e3d865280
treedcd62a0b6b30338be75cd2acfe5cbbcbfe726c3a
parent6c1500f22a7be3a24ad3dffcdbf04be3f676521b
Btrfs: fix a deadlock in aborting transaction due to ENOSPC

When committing a transaction, we may bail out of running delayed refs
due to ENOSPC, and then abort the current transaction to flip into readonly.

But we'll hit a deadlock on ref head's lock since we forget to release
its lock and other cleanup stuff.

Signed-off-by: Liu Bo <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
fs/btrfs/extent-tree.c