Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934662AbaJ2R2u (ORCPT ); Wed, 29 Oct 2014 13:28:50 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:44631 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934214AbaJ2R2t (ORCPT ); Wed, 29 Oct 2014 13:28:49 -0400 Date: Wed, 29 Oct 2014 18:28:45 +0100 From: Peter Zijlstra To: "Auld, Will" Cc: Matt Fleming , Vikas Shivappa , "linux-kernel@vger.kernel.org" , "Fleming, Matt" , Tejun Heo , "Shivappa, Vikas" Subject: Re: Cache Allocation Technology Design Message-ID: <20141029172845.GP12706@worktop.programming.kicks-ass.net> References: <1413485050.28564.14.camel@vshiva-Udesk> <20141020161855.GF12020@console-pimps.org> <20141024105306.GI12706@worktop.programming.kicks-ass.net> <20141028232215.GO12020@console-pimps.org> <20141029081640.GT3337@twins.programming.kicks-ass.net> <20141029124834.GQ12020@console-pimps.org> <20141029134526.GC3337@twins.programming.kicks-ass.net> <96EC5A4F3149B74492D2D9B9B1602C27349EEB88@ORSMSX105.amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <96EC5A4F3149B74492D2D9B9B1602C27349EEB88@ORSMSX105.amr.corp.intel.com> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 29, 2014 at 04:32:04PM +0000, Auld, Will wrote: > I maybe repeating what Peter has just said but for elements in the > hierarchy where the mask is the same as its parents mask there is no > need for a separate CLOS even in the case where there are tasks in the > group. So we can inherit the CLOS of the parent until which time both > the mask is different than the parent and there are tasks in the > group. I did not state that explicitly, but I did think about that. We could still wait to allocate a CLOS until at least one such group acquires a task. -- 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/