On 11/19/18 3:19 PM, Dan Williams wrote: > Andy wondered why a path that can sleep was using __flush_tlb_all() [1] > and Dave confirmed the expectation for TLB flush is for modifying / > invalidating existing pte entries, but not initial population [2]. I _think_ this is OK. But, could we sprinkle a few WARN_ON_ONCE(p*_present()) calls in there to help us sleep at night?
