linux-kernel - Re: [PATCH 1/1] hotplug cpu: migrate a task within its cpuset

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Message-Id: <20070529123223.068eb97e.akpm@linux-foundation.org>
Date:	Tue, 29 May 2007 12:32:23 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Cliff Wickman <cpw@....com>, linux-kernel@...r.kernel.org,
	Paul Jackson <pj@....com>,
	Christoph Lameter <christoph@...eter.com>,
	Paul Menage <menage@...gle.com>,
	Nick Piggin <nickpiggin@...oo.com.au>
Subject: Re: [PATCH 1/1] hotplug cpu: migrate a task within its cpuset

On Thu, 24 May 2007 09:56:01 +0200
Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Andrew Morton <akpm@...ux-foundation.org> wrote:
> 
> > > When a cpu is disabled, move_task_off_dead_cpu() is called for tasks 
> > > that have been running on that cpu.
> > 
> > So I still have these three patches in the pending queue but I was 
> > rather hoping that the scheduler, sched-domains and cpuset people 
> > could take a look at them, please.
> > 
> > They hit sched.c and cpuset.c mainly, and they might trash Ingo's CFS 
> > patch (I haven't checked).
> 
> The patch looks good to me. It applies cleanly ontop of CFS and it 
> builds and boots fine with and without CONFIG_CPU_HOTPLUG (although i 
> havent tried to explicitly stress the codepath in question). We are a 
> bit paranoid in this codepath but it's not performance-critical 
> normally.
> 
> Acked-by: Ingo Molnar <mingo@...e.hu>
> 

I applied this to -mm, thanks.

The other two patches don't apply well to the current pending patch queue
and nobody seems keen on doing a serious review (or any review, iirc), so I
ducked them.

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