[PATCH v1 0/2] mm/userfaultfd: fix and cleanup for migration entries with uffd-wp

From: David Hildenbrand
Date: Wed Apr 05 2023 - 10:26:59 EST


One fix (I have a simple reproducer but it's too long to paste it into
the commit) and one cleanup.

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

Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Xu <peterx@xxxxxxxxxx>
Cc: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>

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(-)

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2.39.2