[Ocfs2-devel] [PATCH 2/4] Ocfs2: Fix punching hole codes to correctly do CoW during cluster zeroing.

[Mark Fasheh]

On Tue, May 11, 2010 at 05:54:43PM +0800, Tristan Ye wrote:
> Based on the former patch of truncating optimization, bugfix for refcount on
> punching holes can be fairly easy and straightforward since most of work we
> should take into account for refcounting have been completed already in func
> ocfs2_remove_btree_range(), which is also being used by our truncating codes.
> 
> The patch just did CoW for reflinks when a hole is being punched whose start
> and end offset were within one cluster, which means partial zeroing for a cluster
> will be performed soon.
> 
> The patch has been tested fixing the following bug:
> 
> http://oss.oracle.com/bugzilla/show_bug.cgi?id=1216
> 
> Signed-off-by: Tristan Ye <tristan.ye at oracle.com>

Acked-by: Mark Fasheh <mfasheh at suse.com>
	--Mark

--
Mark Fasheh