Messages in this thread | | | Subject | Re: Affinity managed interrupts vs non-managed interrupts | From | Dou Liyang <> | Date | Tue, 11 Sep 2018 17:38:19 +0800 |
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Hi, At 09/11/2018 05:13 PM, Christoph Hellwig wrote: > On Thu, Sep 06, 2018 at 01:46:46PM +0200, Thomas Gleixner wrote: >> >> I think the right solution for these pre/post vectors is to _NOT_ mark >> them managed and leave them as regular interrupts which can be affinity >> controlled and also can move freely on hotplug. > > Yes, agreed. Marking the pre/post vector as managed was a mistake > (and I don't think it even was intentional, at least on my part). > Got it !
And, I am trying to fix this by:
-Don't set affinity for pre/post vectors in irq_create_affinity_masks().
-And do not setup the desc->affinity of pre/post vectors in alloc_msi_entry().
So, the affinity in alloc_descs() will be NULL, and the interrupt won't be marked as IRQD_AFFINITY_MANAGED.
Is it OK? and I will show the codes after testing it.
Thanks, dou
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