linux-kernel - Re: [PATCH] task containersv11 add tasks file interface fix for cpusets

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Message-ID: <6599ad830710031125v68aac64aic4ad7e5114fa8ac@mail.gmail.com>
Date:	Wed, 3 Oct 2007 11:25:21 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Paul Jackson" <pj@....com>
Cc:	akpm@...ux-foundation.org, nickpiggin@...oo.com.au,
	a.p.zijlstra@...llo.nl, serue@...ibm.com, clg@...ibm.com,
	linux-kernel@...r.kernel.org, ebiederm@...ssion.com,
	rientjes@...gle.com, svaidy@...ux.vnet.ibm.com, xemul@...nvz.org,
	containers@...ts.osdl.org, balbir@...ux.vnet.ibm.com
Subject: Re: [PATCH] task containersv11 add tasks file interface fix for cpusets

On 10/3/07, Paul Menage <menage@...gle.com> wrote:
>
> What's wrong with, in update_cpumask(), doing a loop across all
> members of the cgroup and updating their cpus_allowed fields?

i.e. something like:

struct cgroup_iter it;
struct task_struct *p;
while ((p = cgroup_iter_next(cs->css.cgroup, &it))) {
	set_cpus_allowed(p, cs->cpus_allowed);
}
cgroup_iter_end(cs->css.cgroup, &it);

Paul
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