On Fri, Feb 12, 2021 at 01:34:03PM -0800, Mike Kravetz wrote: > I'm good with the new MMU_NOTIFY_HUGETLB_UNSHARE and agree with your reasoning > for adding it. I really did not know enough about usage which caused me to > question. It actually is a good question.. Because after a 2nd thought I cannot think of any mmu notifier usage to explicitly listen to huge pmd unshare event - it could be just a too internal impl detail of hugetlbfs. I think any new flag should justify itself when introduced. Before I could justify it, I think MMU_NOTIFIER_CLEAR is indeed more suitable. Thanks, -- Peter Xu
