Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760710AbXFJQk3 (ORCPT ); Sun, 10 Jun 2007 12:40:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754495AbXFJQkV (ORCPT ); Sun, 10 Jun 2007 12:40:21 -0400 Received: from mga07.intel.com ([143.182.124.22]:36045 "EHLO azsmga101.ch.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752640AbXFJQkU (ORCPT ); Sun, 10 Jun 2007 12:40:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.16,406,1175497200"; d="scan'208";a="237558953" Message-ID: <466C2915.3080706@linux.intel.com> Date: Sun, 10 Jun 2007 09:38:45 -0700 From: Arjan van de Ven User-Agent: Thunderbird 1.5 (Windows/20051201) MIME-Version: 1.0 To: Christoph Lameter CC: "Keshavamurthy, Anil S" , Andrew Morton , linux-kernel@vger.kernel.org, ak@suse.de, gregkh@suse.de, muli@il.ibm.com, asit.k.mallick@intel.com, suresh.b.siddha@intel.com, ashok.raj@intel.com, shaohua.li@intel.com, davem@davemloft.net Subject: Re: [Intel-IOMMU 02/10] Library routine for pre-allocat pool handling References: <20070606185658.138237000@askeshav-devel.jf.intel.com> <20070606190042.510643000@askeshav-devel.jf.intel.com> <20070607162726.2236a296.akpm@linux-foundation.org> <20070608182156.GA24865@linux-os.sc.intel.com> <20070608224539.GA9851@linux-os.sc.intel.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 846 Lines: 19 Christoph Lameter wrote: > On Fri, 8 Jun 2007, Keshavamurthy, Anil S wrote: > >>> What functionality are you missing in the page allocator? It seems that is >>> does what you want? >> Humm..I basically want to allocate memory during interrupt context and >> expect not to fail. I know this is a hard requirement :) > > The page allocator can do that for you. The reserves are configurable. Not > failing is a thing unseen in the computer world. but the page allocator reserve is shared.. and you will need this one EXACTLY when the shared pool is getting low... it's not an uncorrelated thing! - 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/