From 3a1b9eaf727b4ab84ebf059e09c38fc6a53e5614 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Tue, 10 Nov 2020 09:24:36 +0800 Subject: 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: Chao Yu Reviewed-by: Eric Biggers Signed-off-by: Jaegeuk Kim --- fs/f2fs/file.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'fs/f2fs') diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index ea2f1ba408c4..861a6697960a 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -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; -- cgit v1.2.3