Re: [PATCH 16/16] rxrpc: Replace smp_read_barrier_depends() with lockless_dereference()

From: Pranith Kumar
Date: Thu Nov 13 2014 - 16:55:21 EST


On 11/13/2014 03:47 PM, David Howells wrote:
> Pranith Kumar <bobby.prani@xxxxxxxxx> 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
>

OK. Should I send in a patch removing these barriers then?

--
Pranith

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