Date: Tue, 16 Apr 2013 16:37:00 -0400
From: Aristeu Rozanski <aris@redhat.com>
To: Rami Rosen <ramirose@gmail.com>
Cc: tj@kernel.org, lizefan@huawei.com, cgroups@vger.kernel.org,
        containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
        serge.hallyn@canonical.com
Subject: Re: [PATCH] devcg: remove parent_cgroup.
Message-ID: <20130416203700.GP24899@redhat.com>
References: <1366143895-21535-1-git-send-email-ramirose@gmail.com>
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On Tue, Apr 16, 2013 at 11:24:55PM +0300, Rami Rosen wrote:
> In devcgroup_css_alloc(), there is no longer need for parent_cgroup.
> bd2953ebbb("devcg: propagate local changes down the hierarchy") made
> the variable parent_cgroup redundant. This patch removes parent_cgroup
> from devcgroup_css_alloc().
> 
> Signed-off-by: Rami Rosen <ramirose@gmail.com>
> ---
>  security/device_cgroup.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/security/device_cgroup.c b/security/device_cgroup.c
> index 994aecc..dd0dc57 100644
> --- a/security/device_cgroup.c
> +++ b/security/device_cgroup.c
> @@ -236,7 +236,6 @@ static void devcgroup_offline(struct cgroup *cgroup)
>  static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
>  {
>  	struct dev_cgroup *dev_cgroup;
> -	struct cgroup *parent_cgroup;
>  
>  	dev_cgroup = kzalloc(sizeof(*dev_cgroup), GFP_KERNEL);
>  	if (!dev_cgroup)
> @@ -244,7 +243,6 @@ static struct cgroup_subsys_state *devcgroup_css_alloc(struct cgroup *cgroup)
>  	INIT_LIST_HEAD(&dev_cgroup->exceptions);
>  	INIT_LIST_HEAD(&dev_cgroup->propagate_pending);
>  	dev_cgroup->behavior = DEVCG_DEFAULT_NONE;
> -	parent_cgroup = cgroup->parent;
>  
>  	return &dev_cgroup->css;
>  }

oops

ACK

-- 
Aristeu

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