ext4: Return exchanged blocks count to user space in failure

Return exchanged blocks count (moved_len) to user space, if ext4_move_extents() failed on the way. Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
git-mirror · Sep 6, 2009 · 8d66691 · 8d66691
1 parent daea696
commit 8d66691
Showing 1 changed file with 3 additions and 4 deletions.
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
@@ -243,10 +243,9 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 					me.donor_start, me.len, &me.moved_len);
 		fput(donor_filp);
 
-		if (!err)
-			if (copy_to_user((struct move_extent *)arg,
-				&me, sizeof(me)))
-				return -EFAULT;
+		if (copy_to_user((struct move_extent *)arg, &me, sizeof(me)))
+			return -EFAULT;
+
 		return err;
 	}