From fbc78b07ba53ace155f27491c81a009e541a93ad Mon Sep 17 00:00:00 2001 From: Philippe Gerum Date: Thu, 12 Feb 2009 12:18:46 +0000 Subject: 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 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/pgtable-4k.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm/pgtable-4k.h') 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 -- cgit v1.2.3