linux-kernel - Re: [PATCH] introduce task cgroup v2

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Message-Id: <20080616103035.788A.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Mon, 16 Jun 2008 10:32:46 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	"Paul Menage" <menage@...gle.com>
Cc:	kosaki.motohiro@...fujitsu.com, containers@...ts.osdl.org,
	LKML <linux-kernel@...r.kernel.org>,
	"Li Zefan" <lizf@...fujitsu.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: Re: [PATCH] introduce task cgroup v2

Hi Paul,

very sorry, late responce.

> > +struct task_cgroup {
> > +       struct cgroup_subsys_state css;
> > +       /*
> > +        * the counter to account for number of thread.
> > +        */
> > +       int max_tasks;
> > +       int nr_tasks;
> > +
> > +       spinlock_t lock;
> > +};
> 
> This looks rather like a res_counter. Can you resuse that rather than
> implementing your own read/write/charge/uncharge routines?

honestly, I used res_counter on early version.
but I got bad performance.
tus, I changed to current implementation.

Of cource, if res_counter become faster, I'll use it.



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