Commit 050006a7 authored Oct 29, 2010 by Sage Weil Committed by Chris Mason Oct 29, 2010

Btrfs: fix clone ioctl where range is adjacent to extent



We had an edge case issue where the requested range was just
following an existing extent. Instead of skipping to the next
extent, we used the previous one which lead to having zero
sized extents.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

parent 9a019196

fs/btrfs/ioctl.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1597,7 +1597,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
	}		}
	btrfs_release_path(root, path);		btrfs_release_path(root, path);

	if (key.offset + datal < off \|\|		if (key.offset + datal <= off \|\|
	key.offset >= off+len)		key.offset >= off+len)
	goto next;		goto next;