commit 683cebda90787730d5260eac0da7c2bff9fb40ef
author Wang Shilong <wangsl-fnst@cn.fujitsu.com> Wed Feb 20 14:16:14 2013 +0000
committer Josef Bacik <jbacik@fusionio.com> Wed Feb 20 13:00:07 2013 -0500
tree e2ed3c2cb509502daef0bbe149c53b1f0f7a9342
parent fa6ac8765c48a06dfed914e8c8c3a903f9d313a0

Btrfs: fix missing check before disabling quota

The original code forget to check whether quota has been disabled firstly,
and it will return 'EINVAL' and return error to users if quota has been
disabled,it will be unfriendly and confusing for users to see that.
So just return directly if quota has been disabled.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Cc: Arne Jansen <sensille@gmx.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>