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Date: Fri, 3 Jun 2016 20:48:19 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Jason Low <jason.low2@hpe.com>
Cc: Ingo Molnar <mingo@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Ingo Molnar <mingo@redhat.com>,
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Subject: Re: [RFC][PATCH 0/7] locking/rwsem: Convert rwsem count to
 atomic_long_t
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On Fri, Jun 03, 2016 at 11:09:54AM -0700, Jason Low wrote:

>  arch/alpha/include/asm/rwsem.h | 26 +++++++++++++-------------
>  arch/ia64/include/asm/rwsem.h  | 20 ++++++++++----------

So I was looking at rm arch/*/include/asm/rwsem.h :-) Because at the end
of the day you're reimplementing atomic bits.