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