linux-kernel - Re: [PATCH 2/4] cgroup: define controller file conventions

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Message-ID: <55C1C702.3020400@huawei.com>
Date:	Wed, 5 Aug 2015 16:19:14 +0800
From:	Zefan Li <lizefan@...wei.com>
To:	Tejun Heo <tj@...nel.org>
CC:	<axboe@...nel.dk>, <hannes@...xchg.org>,
	<linux-kernel@...r.kernel.org>, <vgoyal@...hat.com>,
	<avanzini.arianna@...il.com>, <cgroups@...r.kernel.org>,
	<kernel-team@...com>
Subject: Re: [PATCH 2/4] cgroup: define controller file conventions

On 2015/8/3 4:23, Tejun Heo wrote:
> 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.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Li Zefan <lizefan@...wei.com>
> Cc: Johannes Weiner <hannes@...xchg.org>

acked

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