Messages in this thread | | | Date | Tue, 20 Oct 2020 09:30:55 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v4 4/4] PCI: Limit pci_alloc_irq_vectors() to housekeeping CPUs |
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On Mon, Oct 19, 2020 at 11:00:05AM -0300, Marcelo Tosatti wrote: > > So I think it is important to figure out what that driver really wants > > in the nohz_full case. If it wants to retain N interrupts per CPU, and > > only reduce the number of CPUs, the proposed interface is wrong. > > It wants N interrupts per non-isolated (AKA housekeeping) CPU.
Then the patch is wrong and the interface needs changing from @min_vecs, @max_vecs to something that expresses the N*nr_cpus relation.
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