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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-02-05 11:31:09 -0800 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-02-06 12:31:50 -0800 |
| commit | 30f103167fcf2b08de64f5f37ece6bfff7392290 (patch) | |
| tree | 7e99ef357c99e8663b88fc684a20536bcd451e43 /arch/x86/include/asm/pgtable.h | |
| parent | 3f6cbef1d7f474d16f3a824c6d2910d930778fbd (diff) | |
| download | lwn-30f103167fcf2b08de64f5f37ece6bfff7392290.tar.gz lwn-30f103167fcf2b08de64f5f37ece6bfff7392290.zip | |
x86: unify pgd_bad
Impact: cleanup
Unify and demacro pgd_bad.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 0c734e2a90ca..ebcb60e6a961 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -574,6 +574,11 @@ static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address) { return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(address); } + +static inline int pgd_bad(pgd_t pgd) +{ + return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; +} #endif /* PAGETABLE_LEVELS > 3 */ #endif /* __ASSEMBLY__ */ |