diff options
Diffstat (limited to 'include/asm-i386/pgtable.h')
-rw-r--r-- | include/asm-i386/pgtable.h | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index 541b3e234335..94c87ff4b5ac 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h | |||
@@ -262,21 +262,36 @@ do { \ | |||
262 | } \ | 262 | } \ |
263 | } while (0) | 263 | } while (0) |
264 | 264 | ||
265 | /* | ||
266 | * We don't actually have these, but we want to advertise them so that | ||
267 | * we can encompass the flush here. | ||
268 | */ | ||
265 | #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY | 269 | #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY |
266 | static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) | ||
267 | { | ||
268 | if (!pte_dirty(*ptep)) | ||
269 | return 0; | ||
270 | return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte_low); | ||
271 | } | ||
272 | |||
273 | #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG | 270 | #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG |
274 | static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) | 271 | |
275 | { | 272 | #define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH |
276 | if (!pte_young(*ptep)) | 273 | #define ptep_clear_flush_dirty(vma, address, ptep) \ |
277 | return 0; | 274 | ({ \ |
278 | return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte_low); | 275 | int __dirty; \ |
279 | } | 276 | __dirty = pte_dirty(*(ptep)); \ |
277 | if (__dirty) { \ | ||
278 | clear_bit(_PAGE_BIT_DIRTY, &(ptep)->pte_low); \ | ||
279 | flush_tlb_page(vma, address); \ | ||
280 | } \ | ||
281 | __dirty; \ | ||
282 | }) | ||
283 | |||
284 | #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH | ||
285 | #define ptep_clear_flush_young(vma, address, ptep) \ | ||
286 | ({ \ | ||
287 | int __young; \ | ||
288 | __young = pte_young(*(ptep)); \ | ||
289 | if (__young) { \ | ||
290 | clear_bit(_PAGE_BIT_ACCESSED, &(ptep)->pte_low); \ | ||
291 | flush_tlb_page(vma, address); \ | ||
292 | } \ | ||
293 | __young; \ | ||
294 | }) | ||
280 | 295 | ||
281 | #define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL | 296 | #define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL |
282 | static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full) | 297 | static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full) |