diff options
Diffstat (limited to 'include/asm-i386/pgtable.h')
| -rw-r--r-- | include/asm-i386/pgtable.h | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index e16359f81a40..628fa7747d0c 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -35,17 +35,16 @@ struct vm_area_struct; #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) extern unsigned long empty_zero_page[1024]; extern pgd_t swapper_pg_dir[1024]; -extern struct kmem_cache *pgd_cache; extern struct kmem_cache *pmd_cache; extern spinlock_t pgd_lock; extern struct page *pgd_list; +void check_pgt_cache(void); void pmd_ctor(void *, struct kmem_cache *, unsigned long); -void pgd_ctor(void *, struct kmem_cache *, unsigned long); -void pgd_dtor(void *, struct kmem_cache *, unsigned long); void pgtable_cache_init(void); void paging_init(void); + /* * The Linux x86 paging architecture is 'compile-time dual-mode', it * implements both the traditional 2-level x86 page tables and the @@ -243,8 +242,6 @@ static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte_low |= _PAGE_ACCESSED; re static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte_low |= _PAGE_RW; return pte; } static inline pte_t pte_mkhuge(pte_t pte) { (pte).pte_low |= _PAGE_PSE; return pte; } -extern void vmalloc_sync_all(void); - #ifdef CONFIG_X86_PAE # include <asm/pgtable-3level.h> #else @@ -288,32 +285,36 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) */ #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS #define ptep_set_access_flags(vma, address, ptep, entry, dirty) \ -do { \ - if (dirty) { \ +({ \ + int __changed = !pte_same(*(ptep), entry); \ + if (__changed && dirty) { \ (ptep)->pte_low = (entry).pte_low; \ pte_update_defer((vma)->vm_mm, (address), (ptep)); \ flush_tlb_page(vma, address); \ } \ -} while (0) + __changed; \ +}) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define ptep_test_and_clear_dirty(vma, addr, ptep) ({ \ - int ret = 0; \ - if (pte_dirty(*ptep)) \ - ret = test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte_low); \ - if (ret) \ - pte_update_defer(vma->vm_mm, addr, ptep); \ - ret; \ + int __ret = 0; \ + if (pte_dirty(*(ptep))) \ + __ret = test_and_clear_bit(_PAGE_BIT_DIRTY, \ + &(ptep)->pte_low); \ + if (__ret) \ + pte_update((vma)->vm_mm, addr, ptep); \ + __ret; \ }) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define ptep_test_and_clear_young(vma, addr, ptep) ({ \ - int ret = 0; \ - if (pte_young(*ptep)) \ - ret = test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte_low); \ - if (ret) \ - pte_update_defer(vma->vm_mm, addr, ptep); \ - ret; \ + int __ret = 0; \ + if (pte_young(*(ptep))) \ + __ret = test_and_clear_bit(_PAGE_BIT_ACCESSED, \ + &(ptep)->pte_low); \ + if (__ret) \ + pte_update((vma)->vm_mm, addr, ptep); \ + __ret; \ }) /* @@ -544,10 +545,6 @@ static inline void paravirt_pagetable_setup_done(pgd_t *base) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ remap_pfn_range(vma, vaddr, pfn, size, prot) -#define MK_IOSPACE_PFN(space, pfn) (pfn) -#define GET_IOSPACE(pfn) 0 -#define GET_PFN(pfn) (pfn) - #include <asm-generic/pgtable.h> #endif /* _I386_PGTABLE_H */ |