linux-kernel - Re: [PATCH -tip/cpus4096-v2] cpumask: fix cpumask of call_function

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Message-ID: <20081027125512.GD12461@elte.hu>
Date:	Mon, 27 Oct 2008 13:55:12 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>,
	Mike Travis <travis@....com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH -tip/cpus4096-v2] cpumask: fix cpumask of
	call_function_data


* Rusty Russell <rusty@...tcorp.com.au> wrote:

> On Friday 24 October 2008 15:47:20 Hiroshi Shimamoto wrote:
> > From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
> 
> Ingo, because of these concerns I recommend you revert 
> d4de5ac3b5e70928c86e3e5ac311f16cbf2e9ab3 (cpumask: 
> smp_call_function_many()) for now, and apply this less contentious 
> version.

ok - applied it to tip/cpus4096-v2, thanks Rusty!

If there's any chance for this in v2.6.28 then only if we disable the 
dynamic API branch altogether [CONFIG_MAXCPUS] and keep that for 
v2.6.29. This means we'd bring in the API changes which should have 
trivial impact only - and none of the riskier changes.

Hm?

Andrew, have we missed the boat on this?

	Ingo
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