From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:45260) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QCsGz-0003gE-2e for qemu-devel@nongnu.org; Thu, 21 Apr 2011 07:42:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QCsGx-0002L2-Vu for qemu-devel@nongnu.org; Thu, 21 Apr 2011 07:42:12 -0400 Received: from mx1.redhat.com ([209.132.183.28]:20895) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QCsGx-0002Kw-H1 for qemu-devel@nongnu.org; Thu, 21 Apr 2011 07:42:11 -0400 Message-ID: <4DB018A3.4090009@redhat.com> Date: Thu, 21 Apr 2011 13:44:35 +0200 From: Kevin Wolf MIME-Version: 1.0 References: <1303375391-26679-1-git-send-email-ronniesahlberg@gmail.com> <20110421085026.GA4817@lst.de> <20110421090935.GA5381@lst.de> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] iSCSI support for QEMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: ronnie sahlberg Cc: qemu-devel@nongnu.org, Stefan Hajnoczi , Christoph Hellwig , stefanha@linux.vnet.ibm.com Am 21.04.2011 13:36, schrieb ronnie sahlberg: > Stephan, > > I understand. > > Let me re-send a patch tomorrow that can optionally enable/force FUA > bits for write. > There are some high-volume arrays that advertise support but fail any > cdb with FUA, FUA_NV bits set with sense, so it needs to be made optional. You should make it dependent on the cache mode, i.e. you set FUA for cache=writethrough and leave it alone for the other cache modes. Kevin