Re: [PATCH 2/2] virtio-scsi: reset virtqueue affinity when doingcpu hotplug

From: Paolo Bonzini
Date: Wed Feb 06 2013 - 12:27:49 EST


Il 16/01/2013 04:55, Wanlong Gao ha scritto:
>>> >> Add hot cpu notifier to reset the request virtqueue affinity
>>> >> when doing cpu hotplug.
>> >
>> > You need to be careful to get_online_cpus() and put_online_cpus() here,
>> > so CPUs can't go up and down in the middle of operations.
>> >
>> > In particular, get_online_cpus()/put_online_cpus() around calls to
>> > virtscsi_set_affinity() (except within notifiers).
> Yes, I'll take care of this, thank you.
>

I squashed patch 1 (plus changes to get/put_online_cpus) in my
multiqueue series, and applied this one as a separate patch.

Paolo
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