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authorMiao Xie <miaox@cn.fujitsu.com>2012-11-15 11:35:41 +0000
committerJosef Bacik <josef@toxicpanda.com>2013-01-14 13:52:31 -0500
commitd86e56cf7d3669dd292012ac82b986bd1573b6cc (patch)
tree60995d977a3143b8ca0d771db80606163f6a72f7 /fs
parentcc975eb4605c5765a5d5e7a51d24ba5a1cda269e (diff)
Btrfs: disable qgroup id 0
Qgroup id 0 is a special number, we should set the id of a qgroup to 0. Fix it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/ioctl.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 7624212ae92..dd8e3448fe8 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3698,6 +3698,11 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
goto drop_write;
}
+ if (!sa->qgroupid) {
+ ret = -EINVAL;
+ goto out;
+ }
+
trans = btrfs_join_transaction(root);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);