From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:39454) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tql5Y-0003GQ-97 for qemu-devel@nongnu.org; Thu, 03 Jan 2013 08:44:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Tql5X-0003RG-Co for qemu-devel@nongnu.org; Thu, 03 Jan 2013 08:44:04 -0500 Received: from mail-pb0-f48.google.com ([209.85.160.48]:37951) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Tql5X-0003RA-3Z for qemu-devel@nongnu.org; Thu, 03 Jan 2013 08:44:03 -0500 Received: by mail-pb0-f48.google.com with SMTP id rq13so8602072pbb.7 for ; Thu, 03 Jan 2013 05:44:01 -0800 (PST) Message-ID: <50E58B19.2050701@gmail.com> Date: Thu, 03 Jan 2013 21:43:53 +0800 From: Liu Yuan MIME-Version: 1.0 References: <1355941771-3418-1-git-send-email-namei.unix@gmail.com> <87k3s6shdv.wl%morita.kazutaka@lab.ntt.co.jp> <50D967C3.7020109@gmail.com> In-Reply-To: <50D967C3.7020109@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] sheepdog: implement direct write semantics List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: MORITA Kazutaka Cc: Kevin Wolf , Stefan Hajnoczi , qemu-devel@nongnu.org On 12/25/2012 04:45 PM, Liu Yuan wrote: > Well, I found setting cache=directsync will contain 'BDRV_O_CACHE_WB'. > Is this a bug for current master? If no, my current scheme will be the > only way to bypass cache of sheepdog. Ping. Can anyone confirm it is a bug that 'cache=directsync' will pass BDRV_O_CACHE_WB' in the flags? Thanks, Yuan