From 9fc34113f6880b215cbea4e7017fc818700384c2 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 3 Mar 2008 09:53:17 +0100 Subject: x86: debug pmd_bad() Signed-off-by: Ingo Molnar --- include/asm-x86/pgtable_32.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h index 997c36c6b4d..1e2c0d83952 100644 --- a/include/asm-x86/pgtable_32.h +++ b/include/asm-x86/pgtable_32.h @@ -90,7 +90,11 @@ extern unsigned long pg0[]; /* To avoid harmful races, pmd_none(x) should check only the lower when PAE */ #define pmd_none(x) (!(unsigned long)pmd_val(x)) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) -#define pmd_bad(x) ((pmd_val(x) \ + +extern int pmd_bad(pmd_t pmd); + +#define pmd_bad_v1(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) +#define pmd_bad_v2(x) ((pmd_val(x) \ & ~(PAGE_MASK | _PAGE_USER | _PAGE_PSE | _PAGE_NX)) \ != _KERNPG_TABLE) -- cgit v1.2.3