| Message ID | 1589778529-25627-1-git-send-email-maobibo@loongson.cn (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v3,1/3] MIPS: Do not flush tlb page when updating PTE entry | expand |
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 9b01d2d..0d625c2 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -478,6 +478,8 @@ static inline pgprot_t pgprot_writecombine(pgprot_t _prot) return __pgprot(prot); } +#define flush_tlb_fix_spurious_fault(vma, address) do { } while (0) + /* * Conversion functions: convert a page and protection to a page entry, * and a page entry and page directory to the page they refer to.
It is not necessary to flush tlb page on all CPUs if suitable PTE entry exists already during page fault handling, just updating TLB is fine. Here redefine flush_tlb_fix_spurious_fault as empty on MIPS system. Change in v2: - split flush_tlb_fix_spurious_fault and tlb update into two patches - comments typo modification - separate tlb update and add pte readable privilege into two patches Change in V3: - add detailed changelog, modify typo issue in patch V2 Signed-off-by: Bibo Mao <maobibo@loongson.cn> --- arch/mips/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+)