linux-kernel - Re: [PATCH 1/8] cgroup: kill cgroup_subsys->__DEPRECATED_clear_css

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Message-ID: <CAOS58YOHjLyKFeah+h+qOrAWvfi1O5eL7m-AMbqAdcP=EOFb6g@mail.gmail.com>
Date:	Wed, 31 Oct 2012 13:14:07 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	lizefan@...wei.com, hannes@...xchg.org, bsingharora@...il.com,
	kamezawa.hiroyu@...fujitsu.com,
	containers@...ts.linux-foundation.org, cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] cgroup: kill cgroup_subsys->__DEPRECATED_clear_css_refs

Hey, Michal.

On Wed, Oct 31, 2012 at 1:12 PM, Michal Hocko <mhocko@...e.cz> wrote:
> And sorry for being to annoying about this WARN_ON_ONCE but I really
> don't see any reason for it. pre_destroy can still happen and now it is
> even reduced to a reasonable condition (somebody shown up). So I would
> put it out of way as it doesn't give us anything and as I've already
> mentioned one can trigger it really easily.

It was there before and goes away in several commits.  I have to
explain all that to remove it in this patch.  Why do that when the
whole thing is just gonna disappear anyway?

Thanks.

-- 
tejun
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