On 3/22/21 5:49 PM, Peter Xu wrote: > This starts from passing cp_flags into hugetlb_change_protection() so hugetlb > will be able to handle MM_CP_UFFD_WP[_RESOLVE] requests. > > huge_pte_clear_uffd_wp() is introduced to handle the case where the > UFFDIO_WRITEPROTECT is requested upon migrating huge page entries. > > Signed-off-by: Peter Xu <peterx@xxxxxxxxxx> > --- > include/asm-generic/hugetlb.h | 5 +++++ > include/linux/hugetlb.h | 6 ++++-- > mm/hugetlb.c | 13 ++++++++++++- > mm/mprotect.c | 3 ++- > mm/userfaultfd.c | 8 ++++++++ > 5 files changed, 31 insertions(+), 4 deletions(-) Thanks, Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx> -- Mike Kravetz
