From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 15 Aug 2007 13:05:22 +0100 (BST) Received: from cantor2.suse.de ([195.135.220.15]:44455 "EHLO mx2.suse.de") by ftp.linux-mips.org with ESMTP id S20021397AbXHOMFU (ORCPT ); Wed, 15 Aug 2007 13:05:20 +0100 Received: from Relay2.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 2F8FF221A2; Wed, 15 Aug 2007 14:05:14 +0200 (CEST) Date: Wed, 15 Aug 2007 14:59:20 +0200 From: Andi Kleen To: Ralf Baechle Cc: Andi Kleen , Alan Cox , Christoph Lameter , Mel Gorman , Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-mips@linux-mips.org Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer Message-ID: <20070815125920.GD3406@bingen.suse.de> References: <20070813225841.GG3406@bingen.suse.de> <20070813230801.GH3406@bingen.suse.de> <20070813234322.GJ3406@bingen.suse.de> <20070814000041.GL3406@bingen.suse.de> <20070814002223.2d8d42c5@the-village.bc.nu> <20070814001441.GN3406@bingen.suse.de> <20070815113749.GA5862@linux-mips.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070815113749.GA5862@linux-mips.org> Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 16193 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ak@suse.de Precedence: bulk X-list: linux-mips On Wed, Aug 15, 2007 at 12:37:49PM +0100, Ralf Baechle wrote: > On Tue, Aug 14, 2007 at 02:14:41AM +0200, Andi Kleen wrote: > > > meth is only used on SGI O2s which are not that slow and unlikely > > to work in tree anyways. > > O2 doesn't enable CONFIG_ZONE_DMA so there is no point in using GFP_DMA in > an O2-specific device driver. Will send out patch in separate mail. Great. BTW I suspect this is true for some other GFP_DMA usages too. Some driver writers seem to confuse it with the PCI DMA APIs or believe it is always needed for them. -Andi From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 15 Aug 2007 14:59:20 +0200 From: Andi Kleen Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer Message-ID: <20070815125920.GD3406@bingen.suse.de> References: <20070813225841.GG3406@bingen.suse.de> <20070813230801.GH3406@bingen.suse.de> <20070813234322.GJ3406@bingen.suse.de> <20070814000041.GL3406@bingen.suse.de> <20070814002223.2d8d42c5@the-village.bc.nu> <20070814001441.GN3406@bingen.suse.de> <20070815113749.GA5862@linux-mips.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070815113749.GA5862@linux-mips.org> Sender: owner-linux-mm@kvack.org Return-Path: To: Ralf Baechle Cc: Andi Kleen , Alan Cox , Christoph Lameter , Mel Gorman , Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-mips@linux-mips.org List-ID: On Wed, Aug 15, 2007 at 12:37:49PM +0100, Ralf Baechle wrote: > On Tue, Aug 14, 2007 at 02:14:41AM +0200, Andi Kleen wrote: > > > meth is only used on SGI O2s which are not that slow and unlikely > > to work in tree anyways. > > O2 doesn't enable CONFIG_ZONE_DMA so there is no point in using GFP_DMA in > an O2-specific device driver. Will send out patch in separate mail. Great. BTW I suspect this is true for some other GFP_DMA usages too. Some driver writers seem to confuse it with the PCI DMA APIs or believe it is always needed for them. -Andi -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org