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x86: unify pte_none

Browse source 
Impact: cleanup

Unify and demacro pte_none.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-05 11:30:43 -08:00
parent 45c82b5a77
commit a034a010f4
4 changed files with 5 additions and 8 deletions
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2
arch/x86/include/asm/pgtable-2level.h
View file

@ -53,8 +53,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
#endif
#define pte_none(x) (!(x).pte_low)
/*
* Bits _PAGE_BIT_PRESENT, _PAGE_BIT_FILE and _PAGE_BIT_PROTNONE are taken,
* split up the 29 bits of offset into this range:

5
arch/x86/include/asm/pgtable-3level.h
View file

@ -151,11 +151,6 @@ static inline int pte_same(pte_t a, pte_t b)
return a.pte_low == b.pte_low && a.pte_high == b.pte_high;
}
static inline int pte_none(pte_t pte)
{
return !pte.pte_low && !pte.pte_high;
}
/*
* Bits 0, 6 and 7 are taken in the low part of the pte,
* put the 32 bits of offset into the high part.

5
arch/x86/include/asm/pgtable.h
View file

@ -429,6 +429,11 @@ static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
}
#endif /* CONFIG_PARAVIRT */
static inline int pte_none(pte_t pte)
{
return !pte.pte;
}
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_X86_32

1
arch/x86/include/asm/pgtable_64.h
View file

@ -171,7 +171,6 @@ static inline int pmd_bad(pmd_t pmd)
return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
}
#define pte_none(x) (!pte_val((x)))
#define pte_present(x) (pte_val((x)) & (_PAGE_PRESENT | _PAGE_PROTNONE))
#define pages_to_mb(x) ((x) >> (20 - PAGE_SHIFT)) /* FIXME: is this right? */