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From: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [PATCH cgroup/for-3.11] cgroup: reserve ID 0 for dummy_root and 1 for unified hierarchy
Date: Tue, 25 Jun 2013 09:38:59 +0800	[thread overview]
Message-ID: <51C8F4B3.1090403@huawei.com> (raw)
In-Reply-To: <20130622163041.GA15261-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>

On 2013/6/23 0:30, Tejun Heo wrote:
> Before 1a57423166 ("cgroup: make hierarchy_id use cyclic idr"),
> hierarchy IDs were allocated from 0.  As the dummy hierarchy was
> always the one first initialized, it got assigned 0 and all other
> hierarchies from 1.  The patch accidentally changed the minimum
> useable ID to 2.
> 
> Let's restore ID 0 for dummy_root and while at it reserve 1 for
> unified hierarchy.
> 
> Signed-off-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> ---
>  kernel/cgroup.c |   10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 

Acked-by: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>

  parent reply	other threads:[~2013-06-25  1:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-22 16:30 [PATCH cgroup/for-3.11] cgroup: reserve ID 0 for dummy_root and 1 for unified hierarchy Tejun Heo
     [not found] ` <20130622163041.GA15261-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2013-06-25  1:38   ` Li Zefan [this message]
2013-06-25 18:44   ` Tejun Heo

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