On 2020-06-26 15:31, Peter Xu wrote:
This is a preparation patch to move page fault accountings into the general
code in handle_mm_fault(). This includes both the per task flt_maj/flt_min
counters, and the major/minor page fault perf events. To do this, the pt_regs
pointer is passed into handle_mm_fault().
PERF_COUNT_SW_PAGE_FAULTS should still be kept in per-arch page fault handlers.
So far, all the pt_regs pointer that passed into handle_mm_fault() is NULL,
which means this patch should have no intented functional change.
Suggested-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
arch/alpha/mm/fault.c | 2 +-
arch/arc/mm/fault.c | 2 +-
arch/arm/mm/fault.c | 2 +-
arch/arm64/mm/fault.c | 2 +-
arch/csky/mm/fault.c | 3 +-
arch/hexagon/mm/vm_fault.c | 2 +-
arch/ia64/mm/fault.c | 2 +-
arch/m68k/mm/fault.c | 2 +-
arch/microblaze/mm/fault.c | 2 +-
arch/mips/mm/fault.c | 2 +-
arch/nds32/mm/fault.c | 2 +-
arch/nios2/mm/fault.c | 2 +-
arch/openrisc/mm/fault.c | 2 +-
arch/parisc/mm/fault.c | 2 +-
arch/powerpc/mm/copro_fault.c | 2 +-
arch/powerpc/mm/fault.c | 2 +-
arch/riscv/mm/fault.c | 2 +-
arch/s390/mm/fault.c | 2 +-
arch/sh/mm/fault.c | 2 +-
arch/sparc/mm/fault_32.c | 4 +--
arch/sparc/mm/fault_64.c | 2 +-
arch/um/kernel/trap.c | 2 +-
arch/unicore32/mm/fault.c | 2 +-
arch/x86/mm/fault.c | 2 +-
arch/xtensa/mm/fault.c | 2 +-
drivers/iommu/amd_iommu_v2.c | 2 +-
The above file is renamed, as of a couple weeks ago, via
commit ad8694bac410 ("iommu/amd: Move AMD IOMMU driver into
subdirectory").
Also there are a number of changes to mm/gup.c (not a concern for this
patch, but it is for the overall series). So I'm hoping you're going to
post a version that is rebased against 5.8-rc*.
thanks,
--
John Hubbard
NVIDIA
