linux-kernel - Re: [PATCH] Add cgroup support for enabling controllers at boot time (v2)

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Message-ID: <6599ad830803070509v1ec83aeet9f63bfd61a00ef19@mail.gmail.com>
Date:	Fri, 7 Mar 2008 05:09:32 -0800
From:	"Paul Menage" <menage@...gle.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Pavel Emelianov" <xemul@...nvz.org>,
	"Hugh Dickins" <hugh@...itas.com>,
	"Sudhir Kumar" <skumar@...ux.vnet.ibm.com>,
	"YAMAMOTO Takashi" <yamamoto@...inux.co.jp>, lizf@...fujitsu.com,
	linux-kernel@...r.kernel.org, taka@...inux.co.jp,
	linux-mm@...ck.org, "David Rientjes" <rientjes@...gle.com>,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH] Add cgroup support for enabling controllers at boot time (v2)

On Fri, Mar 7, 2008 at 4:58 AM, Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
>  > Or rather, it's the other way around - cgroup_disable=cpuset will
>  > instead disable the "cpu" subsystem if "cpu" comes before "cpuset" in
>  > the subsystem list.
>  >
>
>  Would it? I must be missing something, since we do a strncmp with ss->name.
>  I would expect that to match whole strings.
>

No, strncmp only checks the first n characters - so in that case,
you'd be checking for !strncmp("cpuset", "cpu", 3), which will return
true

Paul
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