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Date: Fri, 17 Jun 2016 14:17:24 -0400
From: Tejun Heo <tj@kernel.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Vladimir Davydov <vdavydov@virtuozzo.com>,
        Michal Hocko <mhocko@suse.cz>, Li Zefan <lizefan@huawei.com>,
        linux-mm@kvack.org, cgroups@vger.kernel.org,
        linux-kernel@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH 2/3] cgroup: remove unnecessary 0 check from css_from_id()
Message-ID: <20160617181724.GO3262@mtj.duckdns.org>
References: <20160616034244.14839-1-hannes@cmpxchg.org>
 <20160616200617.GD3262@mtj.duckdns.org>
 <20160617162310.GA19084@cmpxchg.org>
 <20160617162427.GC19084@cmpxchg.org>
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On Fri, Jun 17, 2016 at 12:24:27PM -0400, Johannes Weiner wrote:
> css_idr allocation starts at 1, so index 0 will never point to an
> item. css_from_id() currently filters that before asking idr_find(),
> but idr_find() would also just return NULL, so this is not needed.
> 
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>

Applied 1-2 to cgroup/for-4.8.

Thanks.

-- 
tejun