From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755001Ab0ELNqm (ORCPT ); Wed, 12 May 2010 09:46:42 -0400 Received: from mail-ww0-f46.google.com ([74.125.82.46]:50530 "EHLO mail-ww0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751814Ab0ELNqk (ORCPT ); Wed, 12 May 2010 09:46:40 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=sl5sk4hpqWjK2EsV1OG67zd3S6V/doXRXG6FG0teGb6la5v39rpjZa3Od/+xdw/DVv lE4A5qg7ISB36dzEnEfhK9sVRv88L+xxaS0n6Ha2A3vG4f2+717C06x+q3ZdNq3ekJ4x w48LLam4d8EL3t9fIRKsaUObzLiQzYm/7s3h4= MIME-Version: 1.0 In-Reply-To: <1273671627.1626.116.camel@laptop> References: <1273669541.3086.24.camel@localhost> <1273671627.1626.116.camel@laptop> Date: Wed, 12 May 2010 15:46:37 +0200 Message-ID: Subject: Re: [PATCH/RFC] Have sane default values for cpusets From: Dhaval Giani To: Peter Zijlstra Cc: menage@google.com, balbir@linux.vnet.ibm.com, lennart@poettering.net, jsafrane@redhat.com, tglx@linutronix.de, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 12, 2010 at 3:40 PM, Peter Zijlstra wrote: > On Wed, 2010-05-12 at 15:05 +0200, Dhaval Giani wrote: >> Where cpusets goes wrong is to have a *no* default values. > > It has a default, empty is still a valid value. > Well, it is still not sane. And in the part you snipped, I did mention, >> do we enforce a policy to have sane defaults >> for subsystems if they prevent attaching "regular" tasks by default. And to add to it, a sane default can be defined as one, where a task can be attached to a cgroup on creation without changing any other parameter. Dhaval