move_pages_pte() fixes

[PATCH 0/2] move_pages_pte() fixes

Suren Baghdasaryan posted 2 patches 11 months, 2 weeks ago

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mm/userfaultfd.c | 37 ++++++++++++++++++++++++++-----------
1 file changed, 26 insertions(+), 11 deletions(-)

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[PATCH 0/2] move_pages_pte() fixes

Posted by Suren Baghdasaryan 11 months, 2 weeks ago

Patchset bundles two *unrelated* fixes in move_pages_pte because otherwise
they would create a merge conflict. The first fix which was posted before
at [1] fixes a livelock issue. The second change corrects the use of PTEs
when unmapping them.

The patchset applies cleanly over mm-hotfixes-unstable which contains
Barry's fix [2] that changes related code.

[1] https://lore.kernel.org/all/20250225204613.2316092-1-surenb@google.com/
[2] https://lore.kernel.org/all/20250226003234.0B98FC4CEDD@smtp.kernel.org/

Suren Baghdasaryan (2):
  userfaultfd: do not block on locking a large folio with raised
    refcount
  userfaultfd: fix PTE unmapping stack-allocated PTE copies

 mm/userfaultfd.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)


base-commit: a88b5ef577dd7ddb8606ef233c0634f05e884d4a
-- 
2.48.1.658.g4767266eb4-goog