v4: - fix build for sparc by removing extra line in patch 1 [Mike] - pick Mike's r-b for patch 4
v3: - patch 4: - fix build failure for !CMA and/or !HUGETLBFS [Axel] - Fix mmu notifier range to use start/end [Mike] - add more r-bs v2: - patch 4: move hugetlb_unshare_all_pmds() into mm/hugetlb.c, so it can be used even outside userfaultfd.c This series tries to disable huge pmd unshare of hugetlbfs backed memory for uffd-wp. Although uffd-wp of hugetlbfs is still during rfc stage, the idea of this series may be needed for multiple tasks (Axel's uffd minor fault series, and Mike's soft dirty series), so I picked it out from the larger series. References works: Uffd shmem+hugetlbfs rfc: https://lore.kernel.org/lkml/[email protected]/ Uffd minor mode for hugetlbfs: https://lore.kernel.org/lkml/[email protected]/ Soft dirty for hugetlbfs: https://lore.kernel.org/lkml/[email protected]/ Please review, thanks. Peter Xu (4): hugetlb: Pass vma into huge_pte_alloc() and huge_pmd_share() hugetlb/userfaultfd: Forbid huge pmd sharing when uffd enabled mm/hugetlb: Move flush_hugetlb_tlb_range() into hugetlb.h hugetlb/userfaultfd: Unshare all pmds for hugetlbfs when register wp arch/arm64/mm/hugetlbpage.c | 7 ++- arch/ia64/mm/hugetlbpage.c | 3 +- arch/mips/mm/hugetlbpage.c | 4 +- arch/parisc/mm/hugetlbpage.c | 2 +- arch/powerpc/mm/hugetlbpage.c | 3 +- arch/s390/mm/hugetlbpage.c | 2 +- arch/sh/mm/hugetlbpage.c | 2 +- arch/sparc/mm/hugetlbpage.c | 2 +- fs/userfaultfd.c | 4 ++ include/linux/hugetlb.h | 18 ++++++- include/linux/userfaultfd_k.h | 9 ++++ mm/hugetlb.c | 94 +++++++++++++++++++++++++++-------- mm/userfaultfd.c | 2 +- 13 files changed, 116 insertions(+), 36 deletions(-) -- 2.26.2
