btrfs: move extent_op cleanup to a helper

Move the extent_op cleanup for an empty head ref to a helper function to
help simplify __btrfs_run_delayed_refs.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2017-09-29 15:43:53 -04:00 • committed by David Sterba
commit b00e62507e