Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271428AbUJVQUF (ORCPT ); Fri, 22 Oct 2004 12:20:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271432AbUJVQUE (ORCPT ); Fri, 22 Oct 2004 12:20:04 -0400 Received: from mail-relay-2.tiscali.it ([213.205.33.42]:48319 "EHLO mail-relay-2.tiscali.it") by vger.kernel.org with ESMTP id S271428AbUJVQS7 (ORCPT ); Fri, 22 Oct 2004 12:18:59 -0400 Date: Fri, 22 Oct 2004 18:19:33 +0200 From: Andrea Arcangeli To: Rik van Riel Cc: Andrew Morton , shaggy@austin.ibm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] zap_pte_range should not mark non-uptodate pages dirty Message-ID: <20041022161933.GG14325@dualathlon.random> References: <20041022004159.GB14325@dualathlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 589 Lines: 14 On Thu, Oct 21, 2004 at 10:51:34PM -0400, Rik van Riel wrote: > That depends on the filesystem. I hope the clustered filesystems I agree if you do a "is_underlying_fs_GFS?" check then you can make more assumptions. But if you don't do that, the linux API always left undefined the mmapped contents after O_DIRECT writes on the mmapped data. - 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/