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Message-ID: <43285538.1090709@yahoo.com.au>
Date: Thu, 15 Sep 2005 02:52:08 +1000
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: "David S. Miller" <davem@davemloft.net>
CC: Linux-Kernel@vger.kernel.org, dipankar@in.ibm.com
Subject: Re: [PATCH 4/5] atomic: dec_and_lock use cmpxchg
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David S. Miller wrote:

> I talked to Linus about my patch and he made the good point that the
> Alpha optimization is very valid (it avoids loading the GP and other
> stuff by doing that fancy assembler entry point).  So we decided that
> we'd make the cmpxchg() generic version, but make moving over to that
> gradual instead of mandatorily forcing everyone to use the new thing.
> 
> So, for example, we'd convert sparc64 (because I want to) and the
> architectures using the exact same ppc64 C code, but leave the others
> alone.  It'd be up to the remaining platform's maintainers to move
> over if they wanted to.
> 
> I'll submit that updated patch to him later today.
> 

OK that's fair enough. I'll submit whatever cleanups are possible
on top of your patch after the atomic_cmpxchg patch goes in (if
it goes in). Thanks.

-- 
SUSE Labs, Novell Inc.

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