On Tue, Mar 13, 2018 at 05:24:40PM -0600, Keith Busch wrote: > On Tue, Mar 13, 2018 at 02:18:07PM -0600, Keith Busch wrote: > > > > And since you brought my attention to it, I see the 'if' is off by one. > > Let me prepare a v3, and I've one other minor optimization to add as > > well. > > Ugh, I may need to request withdrawing this patch entirely. This will > completely break if the VMD interrupt vector's SMP affinity is a subset > of the child driver's, and the CPUs in the intersection of those masks > are set offline after driver initialization. > > That's looking like a pretty tricky problem to fix, all for (somewhat) > obscure kernel feature... I can't see how without a new hot cpu notifier. > > Let me request a pause on this one and I'll get back ASAP. OK, I will mark it as "Not Applicable" and will wait for an updated version then. Thanks, Lorenzo