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authorPhilippe Gerum <rpm@xenomai.org>2009-02-12 12:18:46 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-13 16:37:44 +1100
commitfbc78b07ba53ace155f27491c81a009e541a93ad (patch)
treea30f2a0f7f732a78d200c0ef00e0c40382f6f071 /arch/powerpc/include/asm/pgtable-4k.h
parentb578f3fcca1e78624dfb5f358776e63711d7fda2 (diff)
powerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL
Fix _PAGE_CHG_MASK so that pte_modify() does not affect the _PAGE_SPECIAL bit. Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pgtable-4k.h')
-rw-r--r--arch/powerpc/include/asm/pgtable-4k.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pgtable-4k.h b/arch/powerpc/include/asm/pgtable-4k.h
index 6b18ba9d2d8..1dbca4e7de6 100644
--- a/arch/powerpc/include/asm/pgtable-4k.h
+++ b/arch/powerpc/include/asm/pgtable-4k.h
@@ -60,7 +60,7 @@
/* It should be preserving the high 48 bits and then specifically */
/* preserving _PAGE_SECONDARY | _PAGE_GROUP_IX */
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \
- _PAGE_HPTEFLAGS)
+ _PAGE_HPTEFLAGS | _PAGE_SPECIAL)
/* Bits to mask out from a PMD to get to the PTE page */
#define PMD_MASKED_BITS 0