Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751177AbbHQVen (ORCPT ); Mon, 17 Aug 2015 17:34:43 -0400 Received: from gum.cmpxchg.org ([85.214.110.215]:49871 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751829AbbHQVel (ORCPT ); Mon, 17 Aug 2015 17:34:41 -0400 Date: Mon, 17 Aug 2015 23:34:26 +0200 From: Johannes Weiner To: Tejun Heo Cc: mingo@redhat.com, peterz@infradead.org, lizefan@huawei.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH v2 1/3] cgroup: define controller file conventions Message-ID: <20150817213426.GB29138@cmpxchg.org> References: <1438641689-14655-1-git-send-email-tj@kernel.org> <1438641689-14655-2-git-send-email-tj@kernel.org> <20150804193101.GI17598@mtj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150804193101.GI17598@mtj.duckdns.org> User-Agent: Mutt/1.5.23+102 (2ca89bed6448) (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1530 Lines: 33 On Tue, Aug 04, 2015 at 03:31:01PM -0400, Tejun Heo wrote: > From 6abc8ca19df0078de17dc38340db3002ed489ce7 Mon Sep 17 00:00:00 2001 > From: Tejun Heo > Date: Tue, 4 Aug 2015 15:20:55 -0400 > > Traditionally, each cgroup controller implemented whatever interface > it wanted leading to interfaces which are widely inconsistent. > Examining the requirements of the controllers readily yield that there > are only a few control schemes shared among all. > > Two major controllers already had to implement new interface for the > unified hierarchy due to significant structural changes. Let's take > the chance to establish common conventions throughout all controllers. > > This patch defines CGROUP_WEIGHT_MIN/DFL/MAX to be used on all weight > based control knobs and documents the conventions that controllers > should follow on the unified hierarchy. Except for io.weight knob, > all existing unified hierarchy knobs are already compliant. A > follow-up patch will update io.weight. > > v2: Added descriptions of min, low and high knobs. > > Signed-off-by: Tejun Heo > Acked-by: Johannes Weiner > Cc: Li Zefan > Cc: Peter Zijlstra Acked-by: Johannes Weiner -- 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/