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| author | Peter Xu <peterx@redhat.com> | 2022-05-13 05:22:56 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-05-13 16:20:11 +0200 |
| commit | b1f9e876862d8f7176299ec4fb2108bc1045cbc8 (patch) | |
| tree | 9a2de240e607dd786011ec3a2108962d4f444782 /drivers/vfio | |
| parent | mm/pagemap: recognize uffd-wp bit for shmem/hugetlbfs (diff) | |
| download | linux-b1f9e876862d8f7176299ec4fb2108bc1045cbc8.tar.xz linux-b1f9e876862d8f7176299ec4fb2108bc1045cbc8.zip | |
mm/uffd: enable write protection for shmem & hugetlbfs
We've had all the necessary changes ready for both shmem and hugetlbfs.
Turn on all the shmem/hugetlbfs switches for userfaultfd-wp.
We can expand UFFD_API_RANGE_IOCTLS_BASIC with _UFFDIO_WRITEPROTECT too
because all existing types now support write protection mode.
Since vma_can_userfault() will be used elsewhere, move into userfaultfd_k.h.
Link: https://lkml.kernel.org/r/20220405014926.15101-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers/vfio')
0 files changed, 0 insertions, 0 deletions