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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-05-31 11:56:31 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2016-06-01 13:47:34 +1000
commit157d4d0620879b7d89ca1e3cd7bf0be1e29be198 (patch)
tree691cca75be337bdc830d4af4ae16f9f3fdafa272 /arch
parentdc47c0c1f8099fccb2c1e2f3775855066a9e4484 (diff)
downloadlinux-157d4d0620879b7d89ca1e3cd7bf0be1e29be198.tar.gz
powerpc/mm/radix: Add missing tlb flush
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/mm/pgtable-book3s64.c5
1 files changed, 1 insertions, 4 deletions
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;
 }