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x86: unify pte_present

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Impact: cleanup

Unify and demacro pte_present.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:30:45 -08:00
parent 8de01da35e
commit 7c683851d9
3 changed files with 5 additions and 4 deletions
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5
arch/x86/include/asm/pgtable.h
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@ -440,6 +440,11 @@ static inline int pte_same(pte_t a, pte_t b)
return a.pte == b.pte;
}
static inline int pte_present(pte_t a)
{
return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE);
}
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_X86_32

2
arch/x86/include/asm/pgtable_32.h
View file

@ -85,8 +85,6 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
/* The boot page tables (all created as a single array) */
extern unsigned long pg0[];
#define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))
/* 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)

2
arch/x86/include/asm/pgtable_64.h
View file

@ -169,8 +169,6 @@ static inline int pmd_bad(pmd_t pmd)
return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
#define pte_present(x) (pte_val((x)) & (_PAGE_PRESENT | _PAGE_PROTNONE))
#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT)) /* FIXME: is this right? */
/*