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

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Date:   Wed,  5 Apr 2023 18:02:34 +0200
From:   David Hildenbrand <david@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Peter Xu <peterx@...hat.com>,
        Muhammad Usama Anjum <usama.anjum@...labora.com>
Subject: [PATCH v2 0/2] mm/userfaultfd: fix and cleanup for migration entries with uffd-wp

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@...ux-foundation.org>
Cc: Peter Xu <peterx@...hat.com>
Cc: Muhammad Usama Anjum <usama.anjum@...labora.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(-)

-- 
2.39.2