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| author | Philippe Gerum <rpm@xenomai.org> | 2009-02-12 13:18:46 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-13 06:37:44 +0100 |
| commit | fbc78b07ba53ace155f27491c81a009e541a93ad (patch) | |
| tree | a30f2a0f7f732a78d200c0ef00e0c40382f6f071 /arch/powerpc/include/asm/pgtable-ppc32.h | |
| parent | Merge git://git.infradead.org/users/cbou/battery-2.6.29 (diff) | |
| download | linux-fbc78b07ba53ace155f27491c81a009e541a93ad.tar.xz linux-fbc78b07ba53ace155f27491c81a009e541a93ad.zip | |
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-ppc32.h')
| -rw-r--r-- | arch/powerpc/include/asm/pgtable-ppc32.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/pgtable-ppc32.h b/arch/powerpc/include/asm/pgtable-ppc32.h index f69a4d977729..820b5f0a35ce 100644 --- a/arch/powerpc/include/asm/pgtable-ppc32.h +++ b/arch/powerpc/include/asm/pgtable-ppc32.h @@ -429,7 +429,8 @@ extern int icache_44x_need_flush; #define PMD_PAGE_SIZE(pmd) bad_call_to_PMD_PAGE_SIZE() #endif -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | \ + _PAGE_SPECIAL) #define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | _PAGE_NO_CACHE | \ |