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[v2,0/2] mm/userfaultfd: fix and cleanup for migration entries with uffd-wp

Message ID 20230405160236.587705-1-david@redhat.com (mailing list archive)
Headers show
Series mm/userfaultfd: fix and cleanup for migration entries with uffd-wp | expand

Message

David Hildenbrand April 5, 2023, 4:02 p.m. UTC 
One fix and one cleanup.

uffd-wp migration entry handling for PTE/PMDs should now be fairly similar
code-wise.

v1 -> v2:
- Add RB's
- "mm/userfaultfd: fix uffd-wp handling for THP migration entries"
 -> pmd_swp_uffd_wp(*pvmw->pmd) -> pmd_uffd_wp(pmdval)

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>

David Hildenbrand (2):
  mm/userfaultfd: fix uffd-wp handling for THP migration entries
  mm/userfaultfd: don't consider uffd-wp bit of writable migration
    entries

 mm/huge_memory.c | 16 ++++++++++++----
 mm/mprotect.c    |  2 --
 2 files changed, 12 insertions(+), 6 deletions(-)