Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161008AbWA0U0w (ORCPT ); Fri, 27 Jan 2006 15:26:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161010AbWA0U0w (ORCPT ); Fri, 27 Jan 2006 15:26:52 -0500 Received: from caramon.arm.linux.org.uk ([212.18.232.186]:59409 "EHLO caramon.arm.linux.org.uk") by vger.kernel.org with ESMTP id S1161008AbWA0U0w (ORCPT ); Fri, 27 Jan 2006 15:26:52 -0500 Date: Fri, 27 Jan 2006 20:26:46 +0000 From: Russell King To: Jens Axboe Cc: Pierre Ossman , LKML Subject: Re: How to map high memory for block io Message-ID: <20060127202646.GC2767@flint.arm.linux.org.uk> Mail-Followup-To: Jens Axboe , Pierre Ossman , LKML References: <43D9C19F.7090707@drzeus.cx> <20060127102611.GC4311@suse.de> <43D9F705.5000403@drzeus.cx> <20060127104321.GE4311@suse.de> <43DA0E97.5030504@drzeus.cx> <20060127194318.GA1433@flint.arm.linux.org.uk> <43DA7CD1.4040301@drzeus.cx> <20060127201458.GA2767@flint.arm.linux.org.uk> <20060127202206.GH9068@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060127202206.GH9068@suse.de> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 833 Lines: 21 On Fri, Jan 27, 2006 at 09:22:06PM +0100, Jens Axboe wrote: > That is definitely valid, same goes for the bio_vec structure. They map > _a_ page, after all :-) Okay. Pierre - are you saying that you have an sg entry where sg->offset + sg->length > PAGE_SIZE, and hence is causing you to cross a page boundary? (Sorry, your initial mail got lost because I've tend to be over-eager these days with the D key with lkml over the last week or so - I've not been around much.) -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - 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/