Message-ID: <47DD2FC1.8040106@qumranet.com>
Date: Sun, 16 Mar 2008 16:33:37 +0200
From: Avi Kivity <avi@qumranet.com>
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To: Andi Kleen <ak@suse.de>
CC: Nick Piggin <npiggin@suse.de>, Ingo Molnar <mingo@elte.hu>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       linux-arch@vger.kernel.org
Subject: Re: [rfc][patch] x86-64 new smp_call_function design
References: <20080227124217.GA1340@wotan.suse.de> <47C55FD2.8030809@suse.de> <20080227130716.GB1340@wotan.suse.de> <47C5668C.6040906@suse.de>
In-Reply-To: <47C5668C.6040906@suse.de>
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Andi Kleen wrote:
>
>>>> As far as I understand, calling a subset of online CPUs that is not all or
>>>> one, is used quite infrequently, so this might be OK.
>>>>         
>>> With cpusets and isolation etc. it is the normal case.
>>>       
>> Oh really? Coming from what callers?
>>     
>
> The isolation work is not merged yet, but it will essentially need
> to turn a lot of the _call_function()s into _call_function_mask()
>   

kvm is also a heavy user of smp_call_function_mask(); if you run 
multiple smp guests you'll see plenty of disjoint smp_call_function_mask()s.

-- 
error compiling committee.c: too many arguments to function

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