From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754517AbYJGNaF (ORCPT ); Tue, 7 Oct 2008 09:30:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753384AbYJGN3z (ORCPT ); Tue, 7 Oct 2008 09:29:55 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:59106 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753326AbYJGN3y (ORCPT ); Tue, 7 Oct 2008 09:29:54 -0400 Message-ID: <48EB63D5.8090202@linux-foundation.org> Date: Tue, 07 Oct 2008 08:27:49 -0500 From: Christoph Lameter User-Agent: Thunderbird 2.0.0.17 (Windows/20080914) MIME-Version: 1.0 To: Rusty Russell CC: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, jeremy@goop.org, ebiederm@xmission.com, travis@sgi.com, herbert@gondor.apana.org.au, xemul@openvz.org, penberg@cs.helsinki.fi Subject: Re: [patch 3/4] cpu alloc: The allocator References: <20080929193500.470295078@quilx.com> <20081003003342.4d592c1f.akpm@linux-foundation.org> <48E614A0.60209@linux-foundation.org> <200810060810.43511.rusty@rustcorp.com.au> In-Reply-To: <200810060810.43511.rusty@rustcorp.com.au> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rusty Russell wrote: > It shouldn't be a big win, since possible ~= online for most systems. And > having all the per-cpu users register online and offline cpu callbacks is > error prone and a PITA. That also has the nice consequence that moving the allocators (page allocator / slub) to the use of cpu_alloc will avoid the online and offline callbacks (the main focus of these is getting rid of large pointer arrays there and simplifying bootstrap etc). From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <48EB63D5.8090202@linux-foundation.org> Date: Tue, 07 Oct 2008 08:27:49 -0500 From: Christoph Lameter MIME-Version: 1.0 Subject: Re: [patch 3/4] cpu alloc: The allocator References: <20080929193500.470295078@quilx.com> <20081003003342.4d592c1f.akpm@linux-foundation.org> <48E614A0.60209@linux-foundation.org> <200810060810.43511.rusty@rustcorp.com.au> In-Reply-To: <200810060810.43511.rusty@rustcorp.com.au> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Rusty Russell Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, jeremy@goop.org, ebiederm@xmission.com, travis@sgi.com, herbert@gondor.apana.org.au, xemul@openvz.org, penberg@cs.helsinki.fi List-ID: Rusty Russell wrote: > It shouldn't be a big win, since possible ~= online for most systems. And > having all the per-cpu users register online and offline cpu callbacks is > error prone and a PITA. That also has the nice consequence that moving the allocators (page allocator / slub) to the use of cpu_alloc will avoid the online and offline callbacks (the main focus of these is getting rid of large pointer arrays there and simplifying bootstrap etc). -- 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