From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Howells <dhowells@redhat.com>
Subject: Re: [PATCH 16/16] rxrpc: Replace smp_read_barrier_depends() with lockless_dereference()
Date: Thu, 13 Nov 2014 20:47:26 +0000
Message-ID: <24601.1415911646@warthog.procyon.org.uk>
References: <1415906662-4576-17-git-send-email-bobby.prani@gmail.com> <1415906662-4576-1-git-send-email-bobby.prani@gmail.com>
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Cc: dhowells@redhat.com, "David S. Miller" <davem@davemloft.net>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	netdev@vger.kernel.org (open list:NETWORKING [GENERAL]),
	linux-kernel@vger.kernel.org (open list),
	paulmck@linux.vnet.ibm.com
To: Pranith Kumar <bobby.prani@gmail.com>
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Pranith Kumar <bobby.prani@gmail.com> wrote:

> Recently lockless_dereference() was added which can be used in place of
> hard-coding smp_read_barrier_depends(). The following PATCH makes the change.

Actually, the use of smp_read_barrier_depends() is wrong in circular
buffering.  See Documentation/circular-buffers.txt

David