Messages in this thread | | | Date | Thu, 30 Apr 2015 12:07:14 -0400 | From | Chris Metcalf <> | Subject | Re: [PATCH v9 1/3] smpboot: allow excluding cpus from the smpboot threads |
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On 04/29/2015 06:26 PM, Andrew Morton wrote: > On Fri, 17 Apr 2015 14:37:16 -0400 Chris Metcalf <cmetcalf@ezchip.com> wrote: > >> This change allows some cores to be excluded from running the >> smp_hotplug_thread tasks. The following commit to update >> kernel/watchdog.c to use this functionality is the motivating >> example, and more information on the motivation is provided there. >> >> A new smp_hotplug_thread field is introduced, "cpumask", which >> is cpumask field managed by the smpboot subsystem that indicates whether >> or not the given smp_hotplug_thread should run on that core; the >> cpumask is checked when deciding whether to unpark the thread. >> >> To limit the cpumask to less than cpu_possible, you must call >> smpboot_update_cpumask_percpu_thread() after registering. > Has Thomas commented on any version of this? t'would be nice.
He offered some specific feedback here:
https://lkml.org/lkml/2015/4/8/684
that I reflected in the subsequent iteration of the patch series.
Thomas, any additional feedback would be appreciated.
-- Chris Metcalf, EZChip Semiconductor http://www.ezchip.com
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