From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965203AbWCTQtT (ORCPT ); Mon, 20 Mar 2006 11:49:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965879AbWCTQtT (ORCPT ); Mon, 20 Mar 2006 11:49:19 -0500 Received: from stat9.steeleye.com ([209.192.50.41]:43908 "EHLO hancock.sc.steeleye.com") by vger.kernel.org with ESMTP id S965203AbWCTQtS (ORCPT ); Mon, 20 Mar 2006 11:49:18 -0500 Subject: Re: [PATCHSET] block: fix PIO cache coherency bug From: James Bottomley To: Tejun Heo Cc: Dave Miller , axboe@suse.de, bzolnier@gmail.com, jgarzik@pobox.com, linux-kernel@vger.kernel.org, mattjreimer@gmail.com, rmk+lkml@arm.linux.org.uk In-Reply-To: <441EDB0B.3050805@gmail.com> References: <11371658562541-git-send-email-htejun@gmail.com> <1137167419.3365.5.camel@mulgrave> <20060113182035.GC25849@flint.arm.linux.org.uk> <1137177324.3365.67.camel@mulgrave> <20060113190613.GD25849@flint.arm.linux.org.uk> <20060222082732.GA24320@htj.dyndns.org> <1142871172.3283.17.camel@mulgrave.il.steeleye.com> <441ED79B.4000009@gmail.com> <1142872412.3283.24.camel@mulgrave.il.steeleye.com> <441EDB0B.3050805@gmail.com> Content-Type: text/plain Date: Mon, 20 Mar 2006 10:48:54 -0600 Message-Id: <1142873334.3283.26.camel@mulgrave.il.steeleye.com> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2006-03-21 at 01:40 +0900, Tejun Heo wrote: > Hmmm... if fixing is too much work, how about adding WARN_ON() or one of > its friends if we enter flush_dcache_page() from atomic context? Suits me ... if it ever triggers someone else can look at fixing it ... James