On Thu, Jul 23, 2020 at 03:30:01PM -0700, Ralph Campbell wrote: > static inline int mm_has_notifiers(struct mm_struct *mm) > @@ -513,6 +519,7 @@ static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, > range->start = start; > range->end = end; > range->flags = flags; > + range->migrate_pgmap_owner = NULL; > } Since this function is commonly called and nobody should read migrate_pgmap_owner unless MMU_NOTIFY_MIGRATE is set as the event, this assignment can be dropped. Jason
