linux-kernel - Re: [PATCH] kernel: Use RCU_INIT

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Message-ID: <20140324124939.GA29892@mtj.dyndns.org>
Date:	Mon, 24 Mar 2014 08:49:39 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Monam Agarwal <monamagarwal123@...il.com>
Cc:	lizefan@...wei.com, containers@...ts.linux-foundation.org,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kernel: Use RCU_INIT_POINTER(x, NULL) in cgroup.c

On Mon, Mar 24, 2014 at 12:17:18AM +0530, Monam Agarwal wrote:
> This patch replaces rcu_assign_pointer(x, NULL) with RCU_INIT_POINTER(x, NULL)
> 
> The rcu_assign_pointer() ensures that the initialization of a structure       
> is carried out before storing a pointer to that structure. 
> And in the case of the NULL pointer, there is no structure to initialize. 
> So, rcu_assign_pointer(p, NULL) can be safely converted to RCU_INIT_POINTER(p, NULL)
> 
> Signed-off-by: Monam Agarwal <monamagarwal123@...il.com>

Applied to cgroup/for-3.15.

Thanks.

-- 
tejun
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