Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx> writes:
> s390 can do more fine-grained handling of spurious TLB protection faults,
> when there also is the PTE pointer available.
>
> Therefore, pass on the PTE pointer to flush_tlb_fix_spurious_fault() as
> an additional parameter.
>
> This will add no functional change to other architectures, but those with
> private flush_tlb_fix_spurious_fault() implementations need to be made
> aware of the new parameter.
>
> Reviewed-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
> Signed-off-by: Gerald Schaefer <gerald.schaefer@xxxxxxxxxxxxx>
> ---
> arch/arm64/include/asm/pgtable.h | 2 +-
> arch/mips/include/asm/pgtable.h | 3 ++-
> arch/powerpc/include/asm/book3s/64/tlbflush.h | 3 ++-
> arch/s390/include/asm/pgtable.h | 12 +++++++-----
> arch/x86/include/asm/pgtable.h | 2 +-
> include/linux/pgtable.h | 2 +-
> mm/memory.c | 3 ++-
> mm/pgtable-generic.c | 2 +-
> 8 files changed, 17 insertions(+), 12 deletions(-)
...
> diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h
> index 2bbc0fcce04a..ff7f0ee179e5 100644
> --- a/arch/powerpc/include/asm/book3s/64/tlbflush.h
> +++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h
> @@ -121,7 +121,8 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
>
> #define flush_tlb_fix_spurious_fault flush_tlb_fix_spurious_fault
> static inline void flush_tlb_fix_spurious_fault(struct vm_area_struct *vma,
> - unsigned long address)
> + unsigned long address,
> + pte_t *ptep)
> {
> /*
> * Book3S 64 does not require spurious fault flushes because the PTE
Acked-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> (powerpc)
cheers
