Re: [PATCH RESEND v3 4/4] mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather

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Fixes: 1013af4f585f ("mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race") Reported-by: Uschakow, Stanislav" suschako@amazon.de Closes: https://lore.kernel.org/all/4d3878531c76479d9f8ca9789dc6485d@amazon.de/ Tested-by: Laurence Oberman loberman@redhat.com Cc: stable@vger.kernel.org Signed-off-by: David Hildenbrand (Red Hat) david@kernel.org

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Looks correct and nothing jumped out at me during review, so: Acked-by: Harry Yoo harry.yoo@oracle.com

Thanks Harry! And thanks again for making me look again at the hugetlb mmu_gather horrors :)