From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from internal-mail-relay1.corp.sgi.com (internal-mail-relay1.corp.sgi.com [198.149.32.52]) by omx2.sgi.com (8.12.11/8.12.9/linux-outbound_gateway-1.1) with ESMTP id k8C4FTJg006958 for ; Mon, 11 Sep 2006 21:15:29 -0700 Received: from spindle.corp.sgi.com (spindle.corp.sgi.com [198.29.75.13]) by internal-mail-relay1.corp.sgi.com (8.12.9/8.12.10/SGI_generic_relay-1.2) with ESMTP id k8C1ek8s39327035 for ; Mon, 11 Sep 2006 18:40:46 -0700 (PDT) Received: from schroedinger.engr.sgi.com (schroedinger.engr.sgi.com [163.154.5.55]) by spindle.corp.sgi.com (SGI-8.12.5/8.12.9/generic_config-1.2) with ESMTP id k8C1eknB56283876 for ; Mon, 11 Sep 2006 18:40:46 -0700 (PDT) Received: from christoph (helo=localhost) by schroedinger.engr.sgi.com with local-esmtp (Exim 3.36 #1 (Debian)) id 1GMxGY-000201-00 for ; Mon, 11 Sep 2006 18:40:46 -0700 Date: Mon, 11 Sep 2006 18:40:02 -0700 (PDT) From: Christoph Lameter Subject: Re: [PATCH 3/6] Optional ZONE_DMA in the VM In-Reply-To: <450600C7.7090801@yahoo.com.au> Message-ID: References: <20060911222729.4849.69497.sendpatchset@schroedinger.engr.sgi.com> <20060911222744.4849.26386.sendpatchset@schroedinger.engr.sgi.com> <450600C7.7090801@yahoo.com.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII ReSent-To: linux-mm@kvack.org ReSent-Message-ID: Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: linux-mm@vger.kernel.org, Martin Bligh , Christoph Hellwig , linux-ia64@vger.kernel.org, Marcelo Tosatti , Arjan van de Ven , Andi Kleen , KAMEZAWA Hiroyuki List-ID: On Tue, 12 Sep 2006, Nick Piggin wrote: > I can't see from your patches, but what happens if someone asks > for a GFP_DMA page or dma slab allocation when there is no ZONE_DMA? The page/slab allocator will simply ignore the flag and return ZONE_NORMAL memory. See gfp_zone(). -- 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