| Date | Wed, 31 Jul 2013 11:03:31 +0100 | From | Mel Gorman <> | Subject | Re: [PATCH 17/18] sched: Retry migration of tasks to CPU on a preferred node |
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On Thu, Jul 25, 2013 at 12:33:52PM +0200, Peter Zijlstra wrote: > > Subject: stop_machine: Introduce stop_two_cpus() > From: Peter Zijlstra <peterz@infradead.org> > Date: Sun Jul 21 12:24:09 CEST 2013 > > Introduce stop_two_cpus() in order to allow controlled swapping of two > tasks. It repurposes the stop_machine() state machine but only stops > the two cpus which we can do with on-stack structures and avoid > machine wide synchronization issues. > > Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Clever! I did not spot any problems so will be pulling this (and presumably the next patch) into the series. Thanks!
-- Mel Gorman SUSE Labs
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