| Message ID | 1464675991-13023-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
On Tue, 2016-31-05 at 06:26:31 UTC, "Aneesh Kumar K.V" wrote: > This should not have any impact on hash, because hash does tlb > invalidate with every pte update and we don't implement > flush_tlb_* functions for hash. With radix we should make an explicit > call to flush tlb outside pte update. > > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/157d4d0620879b7d89ca1e3cd7 cheers
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index eb4451144746..670318766545 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -33,10 +33,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address, changed = !pmd_same(*(pmdp), entry); if (changed) { __ptep_set_access_flags(pmdp_ptep(pmdp), pmd_pte(entry)); - /* - * Since we are not supporting SW TLB systems, we don't - * have any thing similar to flush_tlb_page_nohash() - */ + flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); } return changed; }
This should not have any impact on hash, because hash does tlb invalidate with every pte update and we don't implement flush_tlb_* functions for hash. With radix we should make an explicit call to flush tlb outside pte update. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> --- arch/powerpc/mm/pgtable-book3s64.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)