Btrfs: return free space in cow error path
authorLiu Bo <bo.li.liu@oracle.com>
Mon, 22 Apr 2013 10:53:47 +0000 (10:53 +0000)
committerJosef Bacik <jbacik@fusionio.com>
Mon, 6 May 2013 19:55:15 +0000 (15:55 -0400)
commitace68bac61b338e52924d87ebdd0fa8c7439f896
treeffebb5c3de0dcc6e10e90f2c69f276a063edb049
parent6463fe58ea60cbcc3e799937dd0877466fc7b8d5
Btrfs: return free space in cow error path

Replace some BUG_ONs with proper handling and take allocated space back to
free space cache for later use.

We don't have to worry about extent maps since they'd be freed in releasepage
path.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
fs/btrfs/inode.c