linux-kernel - Re: [PATCH] vfs: use RCU_INIT

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Message-ID: <20160501173429.GB21574@infradead.org>
Date:	Sun, 1 May 2016 10:34:29 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Muhammad Falak R Wani <falakreyaz@...il.com>
Cc:	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] vfs: use RCU_INIT_POINTER when NULLing

On Sun, May 01, 2016 at 01:39:12AM +0530, Muhammad Falak R Wani wrote:
> It is always safe to use RCU_INIT_POINTER to NULL a pointer. This
> results in slightly smaller/faster code.

Just fix rcu_assign_pointer to do the right thing for a NULL
argument instead.