* [PATCH] Btrfs: remove useless copy in quota_ctl
@ 2013-05-13 11:10 Liu Bo
0 siblings, 0 replies; only message in thread
From: Liu Bo @ 2013-05-13 11:10 UTC (permalink / raw)
To: linux-btrfs
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>
---
fs/btrfs/ioctl.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0de4a2f..c189189 100644
--- 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;
--
1.7.7.6
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2013-05-13 11:10 [PATCH] Btrfs: remove useless copy in quota_ctl Liu Bo
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