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MIPS: Hugetlbfs: Handle huge pages correctly in pmd_bad() 

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2012-10-17 01:01:12 +02:00
parent 359187d647
commit 344afa6550
1 changed files with 14 additions and 1 deletions
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15
arch/mips/include/asm/pgtable-64.h
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@ -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)
{