From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Wed, 14 Aug 2013 01:13:38 +0000 (+0800)
Subject: Btrfs: remove reduplicate check when disabling quota
X-Git-Tag: v3.12-rc1~40^2~55
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b006b2e4f96a21958164ebf37e53c555d9e4fb2f;p=linux.git

Btrfs: remove reduplicate check when disabling quota

We have checked 'quota_root' with qgroup_ioctl_lock held before,So
here the check is reduplicate, remove it.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 01eeffe9ae53..66c58e120b2c 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -943,11 +943,6 @@ int btrfs_quota_disable(struct btrfs_trans_handle *trans,
 
 	btrfs_free_qgroup_config(fs_info);
 
-	if (!quota_root) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	ret = btrfs_clean_quota_tree(trans, quota_root);
 	if (ret)
 		goto out;