[PATCH 0/2] Refactor do_fault_around()

[Lorenzo Stoakes <lstoakes@gmail.com>]

Refactor do_fault_around() to avoid bitwise tricks and arather difficult to
follow logic.  Additionally, prefer fault_around_pages to
fault_around_bytes as the operations are performed at a base page
granularity.

I have run this code against a small program I wrote which generates
significant input data and compares output with the original function to
ensure that it behaves the same as the old code across varying vmf, vma and
fault_around_pages inputs.

Lorenzo Stoakes (2):
  mm: refactor do_fault_around()
  mm: pefer fault_around_pages to fault_around_bytes

 mm/memory.c | 62 ++++++++++++++++++++++++++---------------------------
 1 file changed, 30 insertions(+), 32 deletions(-)

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2.39.2