[0/6] mremap fixes

Message

Aneesh Kumar K.V June 10, 2021, 8:35 a.m. UTC

This patch series is split out series from [PATCH v7 00/11] Speedup mremap on ppc64
(https://lore.kernel.org/linux-mm/[e-mail])
dropping ppc64 specific changes.

I will send the ppc64 specific changes separately once we agree on how to handle the
TLB flush changes.


Aneesh Kumar K.V (6):
  selftest/mremap_test: Update the test to handle pagesize other than 4K
  selftest/mremap_test: Avoid crash with static build
  mm/mremap: Convert huge PUD move to separate helper
  mm/mremap: Don't enable optimized PUD move if page table levels is 2
  mm/mremap: Use pmd/pud_poplulate to update page table entries
  mm/mremap: hold the rmap lock in write mode when moving page table
    entries.

 mm/mremap.c                              |  93 +++++++++++++++---
 tools/testing/selftests/vm/mremap_test.c | 118 ++++++++++++-----------
 2 files changed, 143 insertions(+), 68 deletions(-)