Re: [PATCH v3 4/5] mmu_notifiers: Don't invalidate secondary TLBs as part of mmu_notifier_invalidate_range_end()

[Jason Gunthorpe]

On Thu, Jul 20, 2023 at 06:39:26PM +1000, Alistair Popple wrote:
> Secondary TLBs are now invalidated from the architecture specific TLB
> invalidation functions. Therefore there is no need to explicitly
> notify or invalidate as part of the range end functions. This means we
> can remove mmu_notifier_invalidate_range_end_only() and some of the
> ptep_*_notify() functions.
> 
> Signed-off-by: Alistair Popple <apopple@xxxxxxxxxx>
> ---
>  include/linux/mmu_notifier.h | 56 +------------------------------------
>  kernel/events/uprobes.c      |  2 +-
>  mm/huge_memory.c             | 25 ++---------------
>  mm/hugetlb.c                 |  1 +-
>  mm/memory.c                  |  8 +----
>  mm/migrate_device.c          |  9 +-----
>  mm/mmu_notifier.c            | 25 ++---------------
>  mm/rmap.c                    | 40 +--------------------------
>  8 files changed, 14 insertions(+), 152 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason