On Sat, Jul 29, 2017 at 07:48:56PM +1000, Nicholas Piggin wrote: > On Sat, 29 Jul 2017 19:45:43 +1000 > Nicholas Piggin <[email protected]> wrote: > > > hmm, we might be able to restrict iteration > > to mm_cpumask(current->mm), no? > > Oh that's been discussed too. I'll read back over it too.
Right, the main problem is that some architectures (arm64 for instance, although Will is looking at it) don't use mm_cpumask() at all. Other architectures (PPC for instance) only ever set bits.
