diff options
Diffstat (limited to 'include/asm-i386/pgtable-3level.h')
| -rw-r--r-- | include/asm-i386/pgtable-3level.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h index 664bfee5a2f..45b02418150 100644 --- a/include/asm-i386/pgtable-3level.h +++ b/include/asm-i386/pgtable-3level.h @@ -139,6 +139,17 @@ static inline void pud_clear (pud_t * pud) { } #define pmd_offset(pud, address) ((pmd_t *) pud_page(*(pud)) + \ pmd_index(address)) +/* local pte updates need not use xchg for locking */ +static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) +{ + pte_t res; + + res = *ptep; + native_pte_clear(NULL, 0, ptep); + return res; +} + +#ifdef CONFIG_SMP static inline pte_t native_ptep_get_and_clear(pte_t *ptep) { pte_t res; @@ -150,6 +161,9 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep) return res; } +#else +#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp) +#endif #define __HAVE_ARCH_PTE_SAME static inline int pte_same(pte_t a, pte_t b) |