Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757419Ab1FPJYo (ORCPT ); Thu, 16 Jun 2011 05:24:44 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:42269 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753935Ab1FPJYn (ORCPT ); Thu, 16 Jun 2011 05:24:43 -0400 Date: Thu, 16 Jun 2011 05:24:29 -0400 From: Christoph Hellwig To: Pekka Enberg Cc: Anthony Liguori , Alexander Graf , Prasad Joshi , Avi Kivity , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Andrew Morton , Linus Torvalds , Ingo Molnar , Sasha Levin , Cyrill Gorcunov , Asias He , Jens Axboe Subject: Re: [ANNOUNCE] Native Linux KVM tool v2 Message-ID: <20110616092429.GA5484@infradead.org> References: <1308153214.7566.6.camel@jaguar> <4DF8DE26.1070301@redhat.com> <4DF92C80.3030106@codemonkey.ws> <7A30A509-47AA-4E72-ABF3-937005900F9D@suse.de> <4DF93010.1040006@codemonkey.ws> <4DF935C1.4020000@codemonkey.ws> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 603 Lines: 13 On Thu, Jun 16, 2011 at 09:21:03AM +0300, Pekka Enberg wrote: > And btw, we use sync_file_range() Which doesn't help you at all. sync_file_range is just a hint for VM writeback, but never commits filesystem metadata nor the physical disk's write cache. In short it's a completely dangerous interface, and that is pretty well documented in the man page. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/