Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753421Ab0LJHLr (ORCPT ); Fri, 10 Dec 2010 02:11:47 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:45034 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752063Ab0LJHLp (ORCPT ); Fri, 10 Dec 2010 02:11:45 -0500 Date: Thu, 9 Dec 2010 23:09:37 -0800 From: Andrew Morton To: Eric Dumazet Cc: Andi Kleen , linux-kernel , netdev , David Miller , Tejun Heo , Rusty Russell , Tony Luck , Fenghua Yu Subject: Re: [PATCH v2 3/4] kthread: NUMA aware kthread_create_on_cpu() Message-Id: <20101209230937.073fab54.akpm@linux-foundation.org> In-Reply-To: <1291964561.2803.25.camel@edumazet-laptop> References: <1290972833.29196.90.camel@edumazet-laptop> <20101128224024.GA12300@basil.fritz.box> <1290984712.29196.100.camel@edumazet-laptop> <20101128230146.GB12300@basil.fritz.box> <1290987424.29196.128.camel@edumazet-laptop> <20101129090510.GA15763@basil.fritz.box> <1291023532.3435.29.camel@edumazet-laptop> <1291043695.3435.980.camel@edumazet-laptop> <20101209164438.fae1ba4c.akpm@linux-foundation.org> <1291960798.2803.18.camel@edumazet-laptop> <20101209223210.acd540de.akpm@linux-foundation.org> <1291964561.2803.25.camel@edumazet-laptop> X-Mailer: Sylpheed 2.7.1 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1277 Lines: 32 On Fri, 10 Dec 2010 08:02:41 +0100 Eric Dumazet wrote: > Le jeudi 09 d__cembre 2010 __ 22:32 -0800, Andrew Morton a __crit : > > > but but but. The name "kthread_create_on_cpu" sucks. It's plain wrong. > > Okay you are right Andrew ;) I dont have better idea for the moment. Dunno. kthread_create_with_memory_on_node() :) How's about kthread_create_for_node()? That's sufficiently vague to not mislead readers into thinking that it schedules the thread on that CPU and leaves room in the namespace for a real kthread_create_on_cpu() (which we could well end up creating). kthread_create_node_mem()? > Note that all callers I converted really create one kthread per cpu, not > per node. They didnt care of node affinity, only me :) > > kthread_create_on_node() seems misleading to me (some cpus run on > memoryless nodes) True, but what we're doing here is specifying on which node the kthread's memory resources should reside - we need to do that even for CPUs which live on memoryless nodes. -- 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/