From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail144.messagelabs.com (mail144.messagelabs.com [216.82.254.51]) by kanga.kvack.org (Postfix) with ESMTP id 4FE186B0047 for ; Wed, 24 Feb 2010 16:08:21 -0500 (EST) Received: from kpbe13.cbf.corp.google.com (kpbe13.cbf.corp.google.com [172.25.105.77]) by smtp-out.google.com with ESMTP id o1OL8HtG031238 for ; Wed, 24 Feb 2010 21:08:17 GMT Received: from pwi2 (pwi2.prod.google.com [10.241.219.2]) by kpbe13.cbf.corp.google.com with ESMTP id o1OL7E48027417 for ; Wed, 24 Feb 2010 15:08:16 -0600 Received: by pwi2 with SMTP id 2so2356301pwi.12 for ; Wed, 24 Feb 2010 13:08:16 -0800 (PST) Date: Wed, 24 Feb 2010 13:08:12 -0800 (PST) From: David Rientjes Subject: Re: [regression] cpuset,mm: update tasks' mems_allowed in time (58568d2) In-Reply-To: <4B84F2FD.6030605@cn.fujitsu.com> Message-ID: References: <20100218134921.GF9738@laptop> <20100219033126.GI9738@laptop> <4B827043.3060305@cn.fujitsu.com> <4B838490.1050908@cn.fujitsu.com> <4B839E9D.8020604@cn.fujitsu.com> <4B84F2FD.6030605@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Miao Xie Cc: Nick Piggin , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Lee Schermerhorn List-ID: On Wed, 24 Feb 2010, Miao Xie wrote: > I think it is not a big deal because it is safe and doesn't cause any problem. > Beside that, task->cpus_allowed is initialized to cpu_possible_mask on the no-cpuset > kernel, so using cpu_possible_mask to initialize task->cpus_allowed is reasonable. > (top cpuset is a special cpuset, isn't it?) > I'm suprised that I can create a descendant cpuset of top_cpuset that cannot include all of its parents' cpus and that the root cpuset's cpus mask doesn't change when cpus are onlined/offlined. -- 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