x86: debug pmd_bad()

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-03 09:53:17 +01:00
parent 40869cd038
commit 9fc34113f6
2 changed files with 12 additions and 1 deletions
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@ -381,3 +381,10 @@ void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 }

 #endif
+
+int pmd_bad(pmd_t pmd)
+{
+	WARN_ON_ONCE(pmd_bad_v1(pmd) != pmd_bad_v2(pmd));
+
+	return pmd_bad_v1(pmd);
+}