From mboxrd@z Thu Jan  1 00:00:00 1970
From: Li Dongyang <lidongyang@novell.com>
Subject: [PATCH V3 0/3] xen-blkfront/xen-blkback trim support
Date: Wed, 24 Aug 2011 17:23:42 +0800
Message-ID: <1314177825-22360-1-git-send-email-lidongyang@novell.com>
Return-path: <xen-devel-bounces@lists.xensource.com>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: xen-devel@lists.xensource.com
Cc: owen.smith@citrix.com, JBeulich@novell.com
List-Id: xen-devel@lists.xenproject.org

Dear list,
this is the V3 of the trim support for xen-blkfront/blkback,
thanks for all your reviews.
and when I looked back at Owen's patch in Dec 2010,
http://lists.xensource.com/archives/html/xen-devel/2010-12/msg00299.html
this patch above also add the trim union to blkif_x86_{32|64}_request,
and take care of trim request in blkif_get_x86{32|64}_req(),
however, in the later versions, the part is just gone. I wonder if it is
needed here? Thanks.

Changelog V3:
    rebased on linus's tree
    enum backend types in blkif instead of flags in the interface header
    more reasonable names in xenstore
    move trim requesting handling to a separate function
    do not re-enable interrupts unconditionally when handling response
    set info->feature-trim only when we have all info needed for request queue
Changelog V2:
    rebased on Jeremy's tree
    fixes according to Jan Beulich's comments