From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932215AbdJWMGh (ORCPT ); Mon, 23 Oct 2017 08:06:37 -0400 Received: from mail-wr0-f195.google.com ([209.85.128.195]:44988 "EHLO mail-wr0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751116AbdJWMGf (ORCPT ); Mon, 23 Oct 2017 08:06:35 -0400 X-Google-Smtp-Source: ABhQp+SamF1Q4GSYc7qQB/Sm9Q4wUgpIdWmjnHEXgzqVGqyD0i8BWmHRdhE+xOIlz4V+oDCXNAIbnQ== Date: Mon, 23 Oct 2017 14:06:31 +0200 From: Ingo Molnar To: Frederic Weisbecker Cc: LKML , Peter Zijlstra , Chris Metcalf , Thomas Gleixner , Luiz Capitulino , Christoph Lameter , "Paul E . McKenney" , Mike Galbraith , Rik van Riel , Wanpeng Li Subject: Re: [GIT PULL] Introduce housekeeping subsystem v4 Message-ID: <20171023120631.dkpymlvfavh4zmpn@gmail.com> References: <1505742849-30473-1-git-send-email-fweisbec@gmail.com> <20170928095425.2kcaehmnrukdkzfy@gmail.com> <1614fd90-f334-ed4b-3698-e799f29e4e35@gmail.com> <20171020081738.cb6ycok7a3bmtafr@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Frederic Weisbecker wrote: > In fact, CPU affinity is the only high level concept I found to gather all these > housekeeping elements. > > Perhaps I should use "cpu_isolation" instead of "housekeeping" naming. The problem with names based on that, like cpu_isolation_map, is that there's really two concepts here: there's the isolcpus feature where the 'mask' is in fact the CPUs that are isolated - while the 'housekeeping CPUs' is the mask of CPUs that _support_ the isolated set of CPUs. The two are different roles but easily confused if named similarly. So I guess 'housekeeping CPUs' is as good as it gets for now. Mind sending a refreshed queue against the latest kernel? There's some new conflicts in kernel/watchdog.c for example. Thanks, Ingo