linux-kernel - Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

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Message-ID: <6599ad830808270536i353e1807kaac4e9fb74301bb0@mail.gmail.com>
Date:	Wed, 27 Aug 2008 05:36:32 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Lai Jiangshan" <laijs@...fujitsu.com>
Cc:	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Linux Containers" <containers@...ts.linux-foundation.org>
Subject: Re: [PATCH] cgroup(fix critical bug): new handling for tasks file

On Tue, Aug 26, 2008 at 9:29 PM, Lai Jiangshan <laijs@...fujitsu.com> wrote:
>
> And vmalloc can malloc larger memory than kmalloc, is vmalloc() enough?
> If not, I think using an array of pages is the best choice.

vmalloc would be simpler, certainly, but it has a higher overhead. And
since we're dealing with arrays of integers here, it's not too hard to
manage multiple arrays. Oh, except for sorting them, which would be
more of a pain. So yes, maybe vmalloc() would be a better choice at
first.

Paul
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