From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Cc: Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Vladimir Davydov
<vdavydov-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>,
Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kernel-team-b10kYP2dOMg@public.gmane.org
Subject: Re: [PATCH 2/3] cgroup: remove unnecessary 0 check from css_from_id()
Date: Fri, 17 Jun 2016 14:17:24 -0400 [thread overview]
Message-ID: <20160617181724.GO3262@mtj.duckdns.org> (raw)
In-Reply-To: <20160617162427.GC19084-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
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-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Applied 1-2 to cgroup/for-4.8.
Thanks.
--
tejun
next prev parent reply other threads:[~2016-06-17 18:17 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-16 3:42 [PATCH] mm: memcontrol: fix cgroup creation failure after many small jobs Johannes Weiner
2016-06-16 20:06 ` Tejun Heo
2016-06-17 16:23 ` Johannes Weiner
[not found] ` <20160617162310.GA19084-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2016-06-17 16:23 ` [PATCH 1/3] cgroup: fix idr leak for the first cgroup root Johannes Weiner
2016-06-17 16:24 ` [PATCH 2/3] cgroup: remove unnecessary 0 check from css_from_id() Johannes Weiner
[not found] ` <20160617162427.GC19084-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2016-06-17 18:17 ` Tejun Heo [this message]
2016-06-17 16:25 ` [PATCH 3/3] mm: memcontrol: fix cgroup creation failure after many small jobs Johannes Weiner
2016-06-17 18:18 ` Tejun Heo
2016-06-20 6:14 ` Nikolay Borisov
2016-06-21 10:16 ` Vladimir Davydov
2016-06-21 15:46 ` Johannes Weiner
2016-06-17 9:06 ` [PATCH] " Vladimir Davydov
2016-06-17 16:40 ` Johannes Weiner
2016-07-14 15:37 ` Johannes Weiner
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