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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-11-28 09:17:02 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-11-28 14:44:33 +0300
commitb3603e174fc81598e8b060d5e9aafe19ee6e65cf (patch)
treec88370d7804b2a874ccc1bae4dd95d58d07174da /arch/powerpc/mm
parent6d3a0379ebdc8e35662343f5359ac4589b79aec2 (diff)
downloadlinux-b3603e174fc81598e8b060d5e9aafe19ee6e65cf.tar.xz
powerpc/mm: update radix__ptep_set_access_flag to not do full mm tlb flush
When we are updating a pte, we just need to flush the tlb mapping that pte. Right now we do a full mm flush because we don't track the page size. Now that we have page size details in pte use that to do the optimized flush Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/pgtable-book3s64.c3
-rw-r--r--arch/powerpc/mm/pgtable.c2
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c
index f4f437cbabf1..ebf9782bacf9 100644
--- a/arch/powerpc/mm/pgtable-book3s64.c
+++ b/arch/powerpc/mm/pgtable-book3s64.c
@@ -35,7 +35,8 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
#endif
changed = !pmd_same(*(pmdp), entry);
if (changed) {
- __ptep_set_access_flags(vma->vm_mm, pmdp_ptep(pmdp), pmd_pte(entry));
+ __ptep_set_access_flags(vma->vm_mm, pmdp_ptep(pmdp),
+ pmd_pte(entry), address);
flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
}
return changed;
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 911fdfb63ec1..cb39c8bd2436 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -224,7 +224,7 @@ int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address,
if (changed) {
if (!is_vm_hugetlb_page(vma))
assert_pte_locked(vma->vm_mm, address);
- __ptep_set_access_flags(vma->vm_mm, ptep, entry);
+ __ptep_set_access_flags(vma->vm_mm, ptep, entry, address);
flush_tlb_page(vma, address);
}
return changed;