linux-kernel - Re: [PATCH 3/7] cgroups: Allow to unbind subsystem from a cgroup hierarachy

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Message-ID: <AANLkTimUEWrfvuRFAkHkMyefNfQqUW9_ksB9jNHb+n2g@mail.gmail.com>
Date:	Thu, 28 Oct 2010 17:02:27 -0700
From:	Paul Menage <menage@...gle.com>
To:	Li Zefan <lizf@...fujitsu.com>
Cc:	"akpm >> Andrew Morton" <akpm@...ux-foundation.org>,
	Stephane Eranian <eranian@...gle.com>,
	LKML <linux-kernel@...r.kernel.org>,
	containers@...ts.linux-foundation.org
Subject: Re: [PATCH 3/7] cgroups: Allow to unbind subsystem from a cgroup hierarachy

On Fri, Oct 22, 2010 at 1:10 AM, Li Zefan <lizf@...fujitsu.com> wrote:
> -               for_each_set_bit(i, &added_bits, CGROUP_SUBSYS_COUNT)
> -                       cg->subsys[i] = cgrp->subsys[i];
> +               for_each_set_bit(i, &bits, CGROUP_SUBSYS_COUNT) {
> +                       if (add)
> +                               cg->subsys[i] = cgrp->subsys[i];
> +                       else
> +                               cg->subsys[i] = dummytop->subsys[i];
> +               }

Should these technically be rcu_assign_pointer() ?

Paul
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