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authorIlya Dryomov <idryomov@gmail.com>2013-03-06 01:57:55 -0700
committerChris Mason <chris.mason@fusionio.com>2013-03-06 22:03:16 -0500
commit3a01aa7a25274308fe813a6237f678aed901cea3 (patch)
tree121565712abd2b2d179548ad5dc5a1202a50593a
parent2cc65e3e57d636a159d92945655b1574e47dba63 (diff)
downloadop-kernel-dev-3a01aa7a25274308fe813a6237f678aed901cea3.zip
op-kernel-dev-3a01aa7a25274308fe813a6237f678aed901cea3.tar.gz
Btrfs: fix a mismerge in btrfs_balance()
Raid56 merge (merge commit e942f88) had mistakenly removed a call to __cancel_balance(), which resulted in balance not cleaning up after itself after a successful finish. (Cleanup includes switching the state, removing the balance item and releasing mut_ex_op testnset lock.) Bring it back. Reported-by: David Sterba <dsterba@suse.cz> Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
-rw-r--r--fs/btrfs/volumes.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9ff454d..6b9cff4 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3235,6 +3235,11 @@ int btrfs_balance(struct btrfs_balance_control *bctl,
update_ioctl_balance_args(fs_info, 0, bargs);
}
+ if ((ret && ret != -ECANCELED && ret != -ENOSPC) ||
+ balance_need_close(fs_info)) {
+ __cancel_balance(fs_info);
+ }
+
wake_up(&fs_info->balance_wait_q);
return ret;
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