linux-kernel - Re: [PATCH] Make sure timers have migrated before killing migration

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Message-ID: <20100525121024.GA10471@amitarora.in.ibm.com>
Date:	Tue, 25 May 2010 17:40:24 +0530
From:	"Amit K. Arora" <aarora@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	tj@...nel.org, Ingo Molnar <mingo@...e.hu>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Gautham R Shenoy <ego@...ibm.com>,
	Darren Hart <dvhltc@...ibm.com>,
	Brian King <brking@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Make sure timers have migrated before killing
	migration_thread

On Tue, May 25, 2010 at 01:31:35PM +0200, Peter Zijlstra wrote:
> On Mon, 2010-05-24 at 15:29 +0530, Amit K. Arora wrote:
> > 
> > Thus, since above race can never happen, is there any other issue with
> > this patch ?
> 
> It doesn't seem to apply nicely...

Hi Peter,

This patch was built on top of 2.6.34, where it applies cleanly. I
checked the git tree and the cpu_stop patchset from Tejun has changed
this code quite much (commit 969c79215a35b06e5e3efe69b9412f858df7856c).

The change is now required in cpu_stop_cpu_callback() in stop_machine.c.
Will post it soon. Thanks!

--
Regards,
Amit Arora
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