linux-kernel - Re: [PATCH 09/11] cgroups: Add a task counter subsystem

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Message-ID: <20110930125441.GB19053@somewhere>
Date:	Fri, 30 Sep 2011 14:54:46 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Containers <containers@...ts.osdl.org>,
	Paul Menage <paul@...lmenage.org>,
	Li Zefan <lizf@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Aditya Kali <adityakali@...gle.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Tim Hockin <thockin@...kin.org>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH 09/11] cgroups: Add a task counter subsystem

On Sun, Sep 18, 2011 at 11:27:10PM +0300, Kirill A. Shutemov wrote:
> On Tue, Sep 13, 2011 at 01:11:29AM +0200, Frederic Weisbecker wrote:
> > +static struct cftype files[] = {
> > +	{
> > +		.name		= "limit",
> > +		.read_u64	= task_counter_read_u64,
> > +		.write_u64	= task_counter_write_u64,
> > +		.private	= RES_LIMIT,
> > +	},
> > +
> > +	{
> > +		.name		= "usage",
> > +		.read_u64	= task_counter_read_u64,
> 
> It would be nice to implement .register_event/.unregister_event as well.

It adds several complications. I prefer to wait for someone requesting
that feature before doing it.
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