Btrfs: don't bother autodefragging if our root is going away
authorJosef Bacik <jbacik@fusionio.com>
Fri, 26 Jul 2013 13:13:15 +0000 (09:13 -0400)
committerChris Mason <chris.mason@fusionio.com>
Sun, 1 Sep 2013 12:04:25 +0000 (08:04 -0400)
commit2112ac800d43e795323bc18558e43fd3641da4ed
tree83d07e75f6734847e9bec73d26135dd66707f37a
parentb37b39cd6b8af7a7c39fc7340d71f3db492af9e2
Btrfs: don't bother autodefragging if our root is going away

We can end up with inodes on the auto defrag list that exist on roots that are
going to be deleted.  This is extra work we don't need to do, so just bail if
our root has 0 root refs.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
fs/btrfs/file.c