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From: Alexander Fyodorov <halcy@yandex.ru>
To: Waiman Long <waiman.long@hp.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
        "Chandramouleeswaran, Aswin" <aswin@hp.com>,
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Subject: Re: [PATCH RFC v2 1/2] qspinlock: Introducing a 4-byte queue spinlock implementation
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30.08.2013, 07:16, "Waiman Long" <waiman.long@hp.com>:
> I am sorry that I was not clear in my previous mail. I mean a flag/macro
> for compile time checking rather than doing runtime checking.

Still a new smp_mb_xxx is better IMO since it can be used in other places too if a need arises.