Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1032427AbXFHWgS (ORCPT ); Fri, 8 Jun 2007 18:36:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S968972AbXFHWgF (ORCPT ); Fri, 8 Jun 2007 18:36:05 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:42615 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757513AbXFHWgC (ORCPT ); Fri, 8 Jun 2007 18:36:02 -0400 Date: Fri, 8 Jun 2007 15:36:01 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Andreas Kleen cc: Andrew Morton , "Keshavamurthy, Anil S" , linux-kernel@vger.kernel.org, gregkh@suse.de, muli@il.ibm.com, asit.k.mallick@intel.com, suresh.b.siddha@intel.com, arjan@linux.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 In-Reply-To: <6901450.1181335390183.SLOX.WebMail.wwwrun@imap-dhs.suse.de> Message-ID: 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> <20070608120107.245eba96.akpm@linux-foundation.org> <6901450.1181335390183.SLOX.WebMail.wwwrun@imap-dhs.suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 698 Lines: 18 On Fri, 8 Jun 2007, Andreas Kleen wrote: > > That's what kmem_cache_alloc() is for?!?! > > Tradtionally that was not allowed in block layer path. Not sure > it is fully obsolete with the recent dirty tracking work, probably not. Why was it not allowed? Because interrupts are disabled? > Besides it would need to be GFP_ATOMIC and the default > atomic pools are not that big. Those could be increased. I think Mel has them already increased in mm. - 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/