From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43534) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V5AjF-0006po-MY for qemu-devel@nongnu.org; Fri, 02 Aug 2013 04:29:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V5Aj5-0002Dn-F8 for qemu-devel@nongnu.org; Fri, 02 Aug 2013 04:28:53 -0400 Received: from e28smtp01.in.ibm.com ([122.248.162.1]:54218) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V5Aj4-0002Cd-Ot for qemu-devel@nongnu.org; Fri, 02 Aug 2013 04:28:43 -0400 Received: from /spool/local by e28smtp01.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 2 Aug 2013 13:50:26 +0530 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 18A463940053 for ; Fri, 2 Aug 2013 13:58:33 +0530 (IST) Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r728Tkkl38535250 for ; Fri, 2 Aug 2013 13:59:46 +0530 Received: from d28av05.in.ibm.com (localhost [127.0.0.1]) by d28av05.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id r728ScIW022740 for ; Fri, 2 Aug 2013 13:58:38 +0530 Message-ID: <51FB6DB0.9050109@linux.vnet.ibm.com> Date: Fri, 02 Aug 2013 16:28:32 +0800 From: Wenchao Xia MIME-Version: 1.0 References: <1375265640-27307-1-git-send-email-famz@redhat.com> <1375265640-27307-8-git-send-email-famz@redhat.com> In-Reply-To: <1375265640-27307-8-git-send-email-famz@redhat.com> Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v3 7/7] nbd: use BlockDriverState refcnt List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Fam Zheng Cc: kwolf@redhat.com, jcody@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com Reviewed-by: Wenchao Xia > Previously, nbd calls drive_get_ref() on the drive of bs. A BDS doesn't > always have associated dinfo, which nbd doesn't care either. We already > have BDS ref count, so use it to make it safe for a BDS w/o blockdev. > > Signed-off-by: Fam Zheng -- Best Regards Wenchao Xia