s390/mm: fix pmd_huge() usage for kernel mapping

[pandora-kernel.git] / arch / s390 / include / asm / pgtable.h

diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 979fe3d..75b91bb 100644 (file)
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -507,6 +507,15 @@ static inline int pmd_none(pmd_t pmd)
        return (pmd_val(pmd) & _SEGMENT_ENTRY_INV) != 0UL;
 }
 
+static inline int pmd_large(pmd_t pmd)
+{
+#ifdef CONFIG_64BIT
+       return !!(pmd_val(pmd) & _SEGMENT_ENTRY_LARGE);
+#else
+       return 0;
+#endif
+}
+
 static inline int pmd_bad(pmd_t pmd)
 {
        unsigned long mask = ~_SEGMENT_ENTRY_ORIGIN & ~_SEGMENT_ENTRY_INV;