linux-kernel - Re: [PATCH 2/11] x86: convert to generic helpers for IPI function calls

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Message-ID: <4812EF0B.4060109@goop.org>
Date:	Sat, 26 Apr 2008 01:59:55 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Jens Axboe <jens.axboe@...cle.com>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org, npiggin@...e.de,
	torvalds@...ux-foundation.org, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 2/11] x86: convert to generic helpers for IPI function
 calls

Ingo Molnar wrote:
> * Jens Axboe <jens.axboe@...cle.com> wrote:
>
>   
>> This converts x86 and x86-64 to use the new helpers for 
>> smp_call_function() and friends, and adds support for 
>> smp_call_function_single().
>>     
>
> nice stuff. The x86 and generic bits:
>
>  Acked-by: Ingo Molnar <mingo@...e.hu>
>
> this has been brewing for months, what is the testing/confidence status 
> of it? Could we still merge it into v2.6.26? (i think we should)
>   

I commented on an earlier version of this patch, but it looks like it 
will break Xen.  If you enable CONFIG_XEN, it will try to define both 
native and Xen versions of arch_send_call_function[_single]_ipi().  It 
needs to vector them via smp_ops.

    J
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