Btrfs: remove useless copy in quota_ctl

We don't need to copy it back to user side as it remains unchanged.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 1e0dda1..fe655bc 100644 (file)
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3719,9 +3719,6 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
                break;
        }
 
-       if (copy_to_user(arg, sa, sizeof(*sa)))
-               ret = -EFAULT;
-
        err = btrfs_commit_transaction(trans, root->fs_info->tree_root);
        if (err && !ret)
                ret = err;