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359021
2013 Feb 22
0
[PATCH 2/2] Btrfs: disable the qgroup level 0 for userspace use
...Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Acked-by: Miao Xie <miaox@cn.fujitsu.com>
Cc: Arne Jansen <sensille@gmx.net>
---
fs/btrfs/ioctl.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a31cd93..3590c21 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3755,7 +3755,7 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
goto drop_write;
}
- if (!sa->qgroupid) {
+ if (!(sa->qgroupid >> 48)) {
ret = -EINVAL;
goto out;
}
--
1.7.7.6
--
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