From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v13 4/5] cgroup: allow a cgroup subsystem to reject a fork
Date: Tue, 9 Jun 2015 16:23:07 +0900
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To: Aleksa Sarai <cyphar-gVpy/LI/lHzQT0dZR+AlfA@public.gmane.org>
Cc: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>, Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, Richard Weinberger <richard-/L3Ra7n9ekc@public.gmane.org>, =?UTF-8?B?RnLDqWTDqXJpYyBXZWlzYmVja2Vy?= <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, lkml <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>

Hello,

On Tue, Jun 9, 2015 at 4:20 PM, Aleksa Sarai <cyphar-gVpy/LI/lHzQT0dZR+AlfA@public.gmane.org> wrote:
> CGROUP_CANFORK_{START,END,COUNT} aren't used to restrict the
> iteration. They're used for restricting the size of the @ss_priv
> array. If you want, I can use CANFORK_{START,END} to restrict the
> iteration -- I just prefer using the for_each_subsys_which API for
> iterating over active cgroups. :/

Ah, I see.  Hmm... yeah, let's keep the code for now, but I think it'd
be cheaper / cleaner to use those macro tags to restrict iteration and
drop all the masks in the future.

Thanks.

-- 
tejun