On Thu, 9 Aug 2018 19:06:59 +0530
"Aneesh Kumar K.V" <aneesh.ku...@linux.ibm.com> wrote:
> This patch makes sure we update the mmu_gather page size even if we are
> requesting for a fullmm flush. This avoids triggering VM_WARN_ON in code
> paths like __tlb_remove_page_size that explicitly check for removing range
> page
> size to be same as mmu gather page size.
>
> Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
Acked-by: Nicholas Piggin <npig...@gmail.com>
Thanks, sorry bout that.
> ---
> arch/powerpc/include/asm/tlb.h | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h
> index 97ecef697e1b..f0e571b2dc7c 100644
> --- a/arch/powerpc/include/asm/tlb.h
> +++ b/arch/powerpc/include/asm/tlb.h
> @@ -49,13 +49,11 @@ static inline void __tlb_remove_tlb_entry(struct
> mmu_gather *tlb, pte_t *ptep,
> static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb,
> unsigned int page_size)
> {
> - if (tlb->fullmm)
> - return;
> -
> if (!tlb->page_size)
> tlb->page_size = page_size;
> else if (tlb->page_size != page_size) {
> - tlb_flush_mmu(tlb);
> + if (!tlb->fullmm)
> + tlb_flush_mmu(tlb);
> /*
> * update the page size after flush for the new
> * mmu_gather.
