From d86e56cf7d3669dd292012ac82b986bd1573b6cc Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Thu, 15 Nov 2012 11:35:41 +0000 Subject: 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 --- fs/btrfs/ioctl.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'fs/btrfs/ioctl.c') diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 7624212ae926..dd8e3448fe8f 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); -- cgit v1.2.3