From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Wagner <wagi@monom.org>
Subject: Re: [PATCH v3 7/8] cgroup: Assign subsystem IDs during compile time
Date: Tue, 11 Sep 2012 23:31:45 +0200
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To: Tejun Heo <tj@kernel.org>
Cc: netdev@vger.kernel.org, cgroups@vger.kernel.org, Daniel Wagner <daniel.wagner@bmw-carit.de>, "David S. Miller" <davem@davemloft.net>, Andrew Morton <akpm@linux-foundation.org>, Eric Dumazet <edumazet@google.com>, Gao feng <gaofeng@cn.fujitsu.com>, Glauber Costa <glommer@parallels.com>, Jamal Hadi Salim <jhs@mojatatu.com>, John Fastabend <john.r.fastabend@intel.com>, Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Li Zefan <lizefan@huawei.com>, Neil Horman <nhorman@tuxdriver.com>

On 09/11/2012 11:08 PM, Tejun Heo wrote:
> On Tue, Sep 11, 2012 at 02:01:09PM -0700, Tejun Heo wrote:
>> For example, it's not evident the above is correct and it's burried
>> with all other changes.  Can't we just assign the fixed subsys ID to
>> net_prio_subsys_id in this patch?  This patch would be correct without
>> any netprio changes, no?
>
> Oops, that was wrong.  net_prio_subsys_id itself becomes constant.
> Let's please better explain why the RCU trick removal is safe then.

In the last paragraph in the commit message I tried to document why it 
is safe to remove the RCU trick. Not good enough?