Commit 3a1b9eaf authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: avoid unneeded data copy in f2fs_ioc_move_range() 



Fields in struct f2fs_move_range won't change in f2fs_ioc_move_range(),
let's avoid copying this structure's data to userspace.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Reviewed-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent e1e8debe

fs/f2fs/file.c

+0 −6
Original line number Diff line number Diff line
@@ -2898,12 +2898,6 @@ static int f2fs_ioc_move_range(struct file *filp, unsigned long arg) 
					range.pos_out, range.len);



	mnt_drop_write_file(filp);

	if (err)

		goto err_out;



	if (copy_to_user((struct f2fs_move_range __user *)arg,

						&range, sizeof(range)))

		err = -EFAULT;

err_out:

	fdput(dst);

	return err;