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authorRalf Baechle <ralf@linux-mips.org>2012-10-17 03:01:12 +0400
committerRalf Baechle <ralf@linux-mips.org>2012-10-17 03:01:12 +0400
commit344afa6550a66eb4b7103cf1b65fca6f38d380d8 (patch)
tree807deb4829696ca3f52e3a432d1fc8a52bf6c2b2 /arch/mips/include/asm/pgtable-64.h
parent359187d647a7a7813444ff5932d0b862f970bb0f (diff)
downloadlinux-344afa6550a66eb4b7103cf1b65fca6f38d380d8.tar.xz
MIPS: Hugetlbfs: Handle huge pages correctly in pmd_bad()
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/pgtable-64.h')
-rw-r--r--arch/mips/include/asm/pgtable-64.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index c26e18250079..f5b521d5a67d 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -9,6 +9,7 @@
#ifndef _ASM_PGTABLE_64_H
#define _ASM_PGTABLE_64_H
+#include <linux/compiler.h>
#include <linux/linkage.h>
#include <asm/addrspace.h>
@@ -172,7 +173,19 @@ static inline int pmd_none(pmd_t pmd)
return pmd_val(pmd) == (unsigned long) invalid_pte_table;
}
-#define pmd_bad(pmd) (pmd_val(pmd) & ~PAGE_MASK)
+static inline int pmd_bad(pmd_t pmd)
+{
+#ifdef CONFIG_HUGETLB_PAGE
+ /* pmd_huge(pmd) but inline */
+ if (unlikely(pmd_val(pmd) & _PAGE_HUGE))
+ return 0;
+#endif
+
+ if (unlikely(pmd_val(pmd) & ~PAGE_MASK))
+ return 1;
+
+ return 0;
+}
static inline int pmd_present(pmd_t pmd)
{