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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-12-14 19:44:51 +0000
committerPaul Mackerras <paulus@samba.org>2008-12-16 15:53:34 +1100
commitf63837f0581fe580168ae1a7d178ded935411747 (patch)
treeea4956ae770193ad2d18f5be599df44014419577 /arch/powerpc/mm/pgtable_32.c
parente41e811a79a4e328005be2744c3076ebde455088 (diff)
downloadop-kernel-dev-f63837f0581fe580168ae1a7d178ded935411747.zip
op-kernel-dev-f63837f0581fe580168ae1a7d178ded935411747.tar.gz
powerpc/mm: Remove flush_HPTE()
The function flush_HPTE() is used in only one place, the implementation of DEBUG_PAGEALLOC on ppc32. It's actually a dup of flush_tlb_page() though it's -slightly- more efficient on hash based processors. We remove it and replace it by a direct call to the hash flush code on those processors and to flush_tlb_page() for everybody else. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/pgtable_32.c')
-rw-r--r--arch/powerpc/mm/pgtable_32.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index c7b755c..3414724 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -342,7 +342,11 @@ static int __change_page_attr(struct page *page, pgprot_t prot)
return -EINVAL;
set_pte_at(&init_mm, address, kpte, mk_pte(page, prot));
wmb();
- flush_HPTE(0, address, pmd_val(*kpmd));
+#ifdef CONFIG_PPC_STD_MMU
+ flush_hash_pages(0, address, pmd_val(*kpmd), 1);
+#else
+ flush_tlb_page(NULL, address);
+#endif
pte_unmap(kpte);
return 0;
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