This patchset enables MOVE_PMD/MOVE_PUD support on power. This requires
the platform to support updating higher-level page tables without
updating page table entries. This also needs to invalidate the Page Walk
Cache on architecture supporting the same.
Changes from v5:
* Drop patch mm/mremap: Move TLB flush outside page table lock
* Add fixes for race between optimized mremap and page out
Changes from v4:
* Change function name and arguments based on review feedback.
Changes from v3:
* Fix build error reported by kernel test robot
* Address review feedback.
Changes from v2:
* switch from using mmu_gather to flush_pte_tlb_pwc_range()
Changes from v1:
* Rebase to recent upstream
* Fix build issues with tlb_gather_mmu changes
Aneesh Kumar K.V (11):
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: Use pmd/pud_poplulate to update page table entries
powerpc/mm/book3s64: Fix possible build error
powerpc/mm/book3s64: Update tlb flush routines to take a page walk
cache flush argument
mm/mremap: Use range flush that does TLB and page walk cache flush
mm/mremap: properly flush the TLB on mremap.
mm/mremap: Fix race between mremap and pageout
mm/mremap: Allow arch runtime override
powerpc/mm: Enable HAVE_MOVE_PMD support
.../include/asm/book3s/64/tlbflush-radix.h | 19 ++-
arch/powerpc/include/asm/book3s/64/tlbflush.h | 29 +++-
arch/powerpc/include/asm/tlb.h | 6 +
arch/powerpc/mm/book3s64/radix_hugetlbpage.c | 4 +-
arch/powerpc/mm/book3s64/radix_tlb.c | 55 ++++---
arch/powerpc/platforms/Kconfig.cputype | 2 +
mm/mremap.c | 145 ++++++++++++++++--
tools/testing/selftests/vm/mremap_test.c | 118 +++++++-------
8 files changed, 269 insertions(+), 109 deletions(-)
--
2.31.1
