linux-kernel - Re: [patch 1/2] i386: use asm() like the other atomic operations already do.

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Message-ID: <46C3AA70.9010000@yahoo.com.au>
Date:	Thu, 16 Aug 2007 11:37:52 +1000
From:	Nick Piggin <nickpiggin@...oo.com.au>
To:	Herbert Xu <herbert.xu@...hat.com>
CC:	Chris Snook <csnook@...hat.com>, Andi Kleen <ak@...e.de>,
	sebastian@...akpoint.cc, linux-kernel@...r.kernel.org
Subject: Re: [patch 1/2] i386: use asm() like the other atomic operations
 already do.

Herbert Xu wrote:
> On Wed, Aug 15, 2007 at 01:02:23PM -0400, Chris Snook wrote:
> 
>>Herbert Xu wrote:

>>>I'm still unconvinced why we need this because nobody has
>>>brought up any examples of kernel code that legitimately
>>>need this.
>>
>>There's plenty of kernel code that *wants* this though.  If we can 
> 
> 
> You keep saying this yet everytime I ask for an example I
> get nothing.

Agreed. Simplest thing to do will be to post those patches which
eliminate the register-clobbering barriers, shrink binaries, etc.
for all that code that wants this.

-- 
SUSE Labs, Novell Inc.
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