linux-kernel - Re: [Suggestion] kernel/cgroup.c: about kfree after 'get_new

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Date:	Wed, 8 May 2013 08:50:46 +0800
From:	Li Zefan <lizefan@...wei.com>
To:	Chen Gang <gang.chen@...anux.com>
CC:	<tj@...nel.org>, <containers@...ts.linux-foundation.org>,
	<cgroups@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Suggestion] kernel/cgroup.c: about kfree after 'get_new_cssid'

>> There's a bug in cgroup_unload_subsys() that idr_destroy() should be called after
>> ss->css_free(). That said, given there's no modular cgroup subsystem using css_id,
>> and the whole css_id thing will be eliminated in 3.11, why bother fixing it.
>>
> 
> I just find it by reading code (I also want to learn about kernel).
> 
> I guess, for some stable versions, may focus on it, they are the
> different branches from the latest version.
> 
> So, is it suitable to send related patch for the bug ?
> 

As I said, there's no modular cgroup subsystem using css_id, so the bug
doesn't exist in real world.

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