linux-kernel - Re: [PATCH] drivers/net: Use RCU_INIT

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Message-Id: <20140325.211916.1629861072755372952.davem@davemloft.net>
Date:	Tue, 25 Mar 2014 21:19:16 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	monamagarwal123@...il.com
Cc:	jasowang@...hat.com, mst@...hat.com, xemul@...allels.com,
	wuzhy@...ux.vnet.ibm.com, therbert@...gle.com, yamato@...hat.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/net: Use RCU_INIT_POINTER(x, NULL) in tun.c

From: Monam Agarwal <monamagarwal123@...il.com>
Date: Mon, 24 Mar 2014 00:02:32 +0530

> 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.
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