Lines Matching refs:vma
390 void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma, in free_pgtables() argument
393 while (vma) { in free_pgtables()
394 struct vm_area_struct *next = vma->vm_next; in free_pgtables()
395 unsigned long addr = vma->vm_start; in free_pgtables()
401 unlink_anon_vmas(vma); in free_pgtables()
402 unlink_file_vma(vma); in free_pgtables()
404 if (is_vm_hugetlb_page(vma)) { in free_pgtables()
405 hugetlb_free_pgd_range(tlb, addr, vma->vm_end, in free_pgtables()
411 while (next && next->vm_start <= vma->vm_end + PMD_SIZE in free_pgtables()
413 vma = next; in free_pgtables()
414 next = vma->vm_next; in free_pgtables()
415 unlink_anon_vmas(vma); in free_pgtables()
416 unlink_file_vma(vma); in free_pgtables()
418 free_pgd_range(tlb, addr, vma->vm_end, in free_pgtables()
421 vma = next; in free_pgtables()
501 static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, in print_bad_pte() argument
504 pgd_t *pgd = pgd_offset(vma->vm_mm, addr); in print_bad_pte()
533 mapping = vma->vm_file ? vma->vm_file->f_mapping : NULL; in print_bad_pte()
534 index = linear_page_index(vma, addr); in print_bad_pte()
542 (void *)addr, vma->vm_flags, vma->anon_vma, mapping, index); in print_bad_pte()
544 vma->vm_file, in print_bad_pte()
545 vma->vm_ops ? vma->vm_ops->fault : NULL, in print_bad_pte()
546 vma->vm_file ? vma->vm_file->f_op->mmap : NULL, in print_bad_pte()
594 struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, in vm_normal_page() argument
602 if (vma->vm_ops && vma->vm_ops->find_special_page) in vm_normal_page()
603 return vma->vm_ops->find_special_page(vma, addr); in vm_normal_page()
604 if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP)) in vm_normal_page()
611 print_bad_pte(vma, addr, pte, NULL); in vm_normal_page()
617 if (unlikely(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))) { in vm_normal_page()
618 if (vma->vm_flags & VM_MIXEDMAP) { in vm_normal_page()
624 off = (addr - vma->vm_start) >> PAGE_SHIFT; in vm_normal_page()
625 if (pfn == vma->vm_pgoff + off) in vm_normal_page()
627 if (!is_cow_mapping(vma->vm_flags)) in vm_normal_page()
637 print_bad_pte(vma, addr, pte, NULL); in vm_normal_page()
650 struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr, in vm_normal_page_pmd() argument
660 if (unlikely(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))) { in vm_normal_page_pmd()
661 if (vma->vm_flags & VM_MIXEDMAP) { in vm_normal_page_pmd()
667 off = (addr - vma->vm_start) >> PAGE_SHIFT; in vm_normal_page_pmd()
668 if (pfn == vma->vm_pgoff + off) in vm_normal_page_pmd()
670 if (!is_cow_mapping(vma->vm_flags)) in vm_normal_page_pmd()
699 pte_t *dst_pte, pte_t *src_pte, struct vm_area_struct *vma, in copy_nonpresent_pte() argument
702 unsigned long vm_flags = vma->vm_flags; in copy_nonpresent_pte()
904 page_copy_prealloc(struct mm_struct *src_mm, struct vm_area_struct *vma, in page_copy_prealloc() argument
909 new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, addr); in page_copy_prealloc()
1196 struct vm_area_struct *vma, pmd_t *pmd, in zap_pte_range() argument
1226 page = vm_normal_page(vma, addr, ptent); in zap_pte_range()
1249 likely(!(vma->vm_flags & VM_SEQ_READ))) in zap_pte_range()
1255 print_bad_pte(vma, addr, ptent, page); in zap_pte_range()
1299 print_bad_pte(vma, addr, ptent, NULL); in zap_pte_range()
1331 struct vm_area_struct *vma, pud_t *pud, in zap_pmd_range() argument
1343 __split_huge_pmd(vma, pmd, addr, false, NULL); in zap_pmd_range()
1344 else if (zap_huge_pmd(tlb, vma, pmd, addr)) in zap_pmd_range()
1357 next = zap_pte_range(tlb, vma, pmd, addr, next, details); in zap_pmd_range()
1366 struct vm_area_struct *vma, p4d_t *p4d, in zap_pud_range() argument
1379 split_huge_pud(vma, pud, addr); in zap_pud_range()
1380 } else if (zap_huge_pud(tlb, vma, pud, addr)) in zap_pud_range()
1386 next = zap_pmd_range(tlb, vma, pud, addr, next, details); in zap_pud_range()
1395 struct vm_area_struct *vma, pgd_t *pgd, in zap_p4d_range() argument
1407 next = zap_pud_range(tlb, vma, p4d, addr, next, details); in zap_p4d_range()
1414 struct vm_area_struct *vma, in unmap_page_range() argument
1422 tlb_start_vma(tlb, vma); in unmap_page_range()
1423 pgd = pgd_offset(vma->vm_mm, addr); in unmap_page_range()
1428 next = zap_p4d_range(tlb, vma, pgd, addr, next, details); in unmap_page_range()
1430 tlb_end_vma(tlb, vma); in unmap_page_range()
1435 struct vm_area_struct *vma, unsigned long start_addr, in unmap_single_vma() argument
1439 unsigned long start = max(vma->vm_start, start_addr); in unmap_single_vma()
1442 if (start >= vma->vm_end) in unmap_single_vma()
1444 end = min(vma->vm_end, end_addr); in unmap_single_vma()
1445 if (end <= vma->vm_start) in unmap_single_vma()
1448 if (vma->vm_file) in unmap_single_vma()
1449 uprobe_munmap(vma, start, end); in unmap_single_vma()
1451 if (unlikely(vma->vm_flags & VM_PFNMAP)) in unmap_single_vma()
1452 untrack_pfn(vma, 0, 0); in unmap_single_vma()
1455 if (unlikely(is_vm_hugetlb_page(vma))) { in unmap_single_vma()
1467 if (vma->vm_file) { in unmap_single_vma()
1468 i_mmap_lock_write(vma->vm_file->f_mapping); in unmap_single_vma()
1469 __unmap_hugepage_range_final(tlb, vma, start, end, NULL); in unmap_single_vma()
1470 i_mmap_unlock_write(vma->vm_file->f_mapping); in unmap_single_vma()
1473 unmap_page_range(tlb, vma, start, end, details); in unmap_single_vma()
1496 struct vm_area_struct *vma, unsigned long start_addr, in unmap_vmas() argument
1501 mmu_notifier_range_init(&range, MMU_NOTIFY_UNMAP, 0, vma, vma->vm_mm, in unmap_vmas()
1504 for ( ; vma && vma->vm_start < end_addr; vma = vma->vm_next) in unmap_vmas()
1505 unmap_single_vma(tlb, vma, start_addr, end_addr, NULL); in unmap_vmas()
1517 void zap_page_range(struct vm_area_struct *vma, unsigned long start, in zap_page_range() argument
1524 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, vma->vm_mm, in zap_page_range()
1526 tlb_gather_mmu(&tlb, vma->vm_mm, start, range.end); in zap_page_range()
1527 update_hiwater_rss(vma->vm_mm); in zap_page_range()
1529 for ( ; vma && vma->vm_start < range.end; vma = vma->vm_next) in zap_page_range()
1530 unmap_single_vma(&tlb, vma, start, range.end, NULL); in zap_page_range()
1544 static void zap_page_range_single(struct vm_area_struct *vma, unsigned long address, in zap_page_range_single() argument
1551 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, vma->vm_mm, in zap_page_range_single()
1553 tlb_gather_mmu(&tlb, vma->vm_mm, address, range.end); in zap_page_range_single()
1554 update_hiwater_rss(vma->vm_mm); in zap_page_range_single()
1556 unmap_single_vma(&tlb, vma, address, range.end, details); in zap_page_range_single()
1572 void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, in zap_vma_ptes() argument
1575 if (address < vma->vm_start || address + size > vma->vm_end || in zap_vma_ptes()
1576 !(vma->vm_flags & VM_PFNMAP)) in zap_vma_ptes()
1579 zap_page_range_single(vma, address, size, NULL); in zap_vma_ptes()
1643 static int insert_page(struct vm_area_struct *vma, unsigned long addr, in insert_page() argument
1646 struct mm_struct *mm = vma->vm_mm; in insert_page()
1681 static int insert_pages(struct vm_area_struct *vma, unsigned long addr, in insert_pages() argument
1687 struct mm_struct *const mm = vma->vm_mm; in insert_pages()
1751 int vm_insert_pages(struct vm_area_struct *vma, unsigned long addr, in vm_insert_pages() argument
1757 if (addr < vma->vm_start || end_addr >= vma->vm_end) in vm_insert_pages()
1759 if (!(vma->vm_flags & VM_MIXEDMAP)) { in vm_insert_pages()
1760 BUG_ON(mmap_read_trylock(vma->vm_mm)); in vm_insert_pages()
1761 BUG_ON(vma->vm_flags & VM_PFNMAP); in vm_insert_pages()
1762 vma->vm_flags |= VM_MIXEDMAP; in vm_insert_pages()
1765 return insert_pages(vma, addr, pages, num, vma->vm_page_prot); in vm_insert_pages()
1771 err = vm_insert_page(vma, addr + (PAGE_SIZE * idx), pages[idx]); in vm_insert_pages()
1810 int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, in vm_insert_page() argument
1813 if (addr < vma->vm_start || addr >= vma->vm_end) in vm_insert_page()
1817 if (!(vma->vm_flags & VM_MIXEDMAP)) { in vm_insert_page()
1818 BUG_ON(mmap_read_trylock(vma->vm_mm)); in vm_insert_page()
1819 BUG_ON(vma->vm_flags & VM_PFNMAP); in vm_insert_page()
1820 vma->vm_flags |= VM_MIXEDMAP; in vm_insert_page()
1822 return insert_page(vma, addr, page, vma->vm_page_prot); in vm_insert_page()
1837 static int __vm_map_pages(struct vm_area_struct *vma, struct page **pages, in __vm_map_pages() argument
1840 unsigned long count = vma_pages(vma); in __vm_map_pages()
1841 unsigned long uaddr = vma->vm_start; in __vm_map_pages()
1853 ret = vm_insert_page(vma, uaddr, pages[offset + i]); in __vm_map_pages()
1880 int vm_map_pages(struct vm_area_struct *vma, struct page **pages, in vm_map_pages() argument
1883 return __vm_map_pages(vma, pages, num, vma->vm_pgoff); in vm_map_pages()
1900 int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages, in vm_map_pages_zero() argument
1903 return __vm_map_pages(vma, pages, num, 0); in vm_map_pages_zero()
1907 static vm_fault_t insert_pfn(struct vm_area_struct *vma, unsigned long addr, in insert_pfn() argument
1910 struct mm_struct *mm = vma->vm_mm; in insert_pfn()
1934 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in insert_pfn()
1935 if (ptep_set_access_flags(vma, addr, pte, entry, 1)) in insert_pfn()
1936 update_mmu_cache(vma, addr, pte); in insert_pfn()
1949 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in insert_pfn()
1953 update_mmu_cache(vma, addr, pte); /* XXX: why not for insert_page? */ in insert_pfn()
1981 vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_pfn_prot() argument
1990 BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))); in vmf_insert_pfn_prot()
1991 BUG_ON((vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) == in vmf_insert_pfn_prot()
1993 BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); in vmf_insert_pfn_prot()
1994 BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn)); in vmf_insert_pfn_prot()
1996 if (addr < vma->vm_start || addr >= vma->vm_end) in vmf_insert_pfn_prot()
2002 track_pfn_insert(vma, &pgprot, __pfn_to_pfn_t(pfn, PFN_DEV)); in vmf_insert_pfn_prot()
2004 return insert_pfn(vma, addr, __pfn_to_pfn_t(pfn, PFN_DEV), pgprot, in vmf_insert_pfn_prot()
2029 vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_pfn() argument
2032 return vmf_insert_pfn_prot(vma, addr, pfn, vma->vm_page_prot); in vmf_insert_pfn()
2036 static bool vm_mixed_ok(struct vm_area_struct *vma, pfn_t pfn) in vm_mixed_ok() argument
2039 if (vma->vm_flags & VM_MIXEDMAP) in vm_mixed_ok()
2050 static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, in __vm_insert_mixed() argument
2056 BUG_ON(!vm_mixed_ok(vma, pfn)); in __vm_insert_mixed()
2058 if (addr < vma->vm_start || addr >= vma->vm_end) in __vm_insert_mixed()
2061 track_pfn_insert(vma, &pgprot, pfn); in __vm_insert_mixed()
2083 err = insert_page(vma, addr, page, pgprot); in __vm_insert_mixed()
2085 return insert_pfn(vma, addr, pfn, pgprot, mkwrite); in __vm_insert_mixed()
2122 vm_fault_t vmf_insert_mixed_prot(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_mixed_prot() argument
2125 return __vm_insert_mixed(vma, addr, pfn, pgprot, false); in vmf_insert_mixed_prot()
2129 vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_mixed() argument
2132 return __vm_insert_mixed(vma, addr, pfn, vma->vm_page_prot, false); in vmf_insert_mixed()
2141 vm_fault_t vmf_insert_mixed_mkwrite(struct vm_area_struct *vma, in vmf_insert_mixed_mkwrite() argument
2144 return __vm_insert_mixed(vma, addr, pfn, vma->vm_page_prot, true); in vmf_insert_mixed_mkwrite()
2258 int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, in remap_pfn_range() argument
2264 struct mm_struct *mm = vma->vm_mm; in remap_pfn_range()
2289 if (is_cow_mapping(vma->vm_flags)) { in remap_pfn_range()
2290 if (addr != vma->vm_start || end != vma->vm_end) in remap_pfn_range()
2292 vma->vm_pgoff = pfn; in remap_pfn_range()
2295 err = track_pfn_remap(vma, &prot, remap_pfn, addr, PAGE_ALIGN(size)); in remap_pfn_range()
2299 vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; in remap_pfn_range()
2304 flush_cache_range(vma, addr, end); in remap_pfn_range()
2314 untrack_pfn(vma, remap_pfn, PAGE_ALIGN(size)); in remap_pfn_range()
2335 int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len) in vm_iomap_memory() argument
2354 if (vma->vm_pgoff > pages) in vm_iomap_memory()
2356 pfn += vma->vm_pgoff; in vm_iomap_memory()
2357 pages -= vma->vm_pgoff; in vm_iomap_memory()
2360 vm_len = vma->vm_end - vma->vm_start; in vm_iomap_memory()
2365 return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot); in vm_iomap_memory()
2583 struct vm_area_struct *vma = vmf->vma; in cow_user_page() local
2584 struct mm_struct *mm = vma->vm_mm; in cow_user_page()
2588 copy_user_highpage(dst, src, addr, vma); in cow_user_page()
2615 update_mmu_tlb(vma, addr, vmf->pte); in cow_user_page()
2621 if (ptep_set_access_flags(vma, addr, vmf->pte, entry, 0)) in cow_user_page()
2622 update_mmu_cache(vma, addr, vmf->pte); in cow_user_page()
2640 update_mmu_tlb(vma, addr, vmf->pte); in cow_user_page()
2671 static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) in __get_fault_gfp_mask() argument
2673 struct file *vm_file = vma->vm_file; in __get_fault_gfp_mask()
2699 if (vmf->vma->vm_file && in do_page_mkwrite()
2700 IS_SWAPFILE(vmf->vma->vm_file->f_mapping->host)) in do_page_mkwrite()
2703 ret = vmf->vma->vm_ops->page_mkwrite(vmf); in do_page_mkwrite()
2727 struct vm_area_struct *vma = vmf->vma; in fault_dirty_shared_page() local
2731 bool page_mkwrite = vma->vm_ops && vma->vm_ops->page_mkwrite; in fault_dirty_shared_page()
2745 file_update_time(vma->vm_file); in fault_dirty_shared_page()
2781 struct vm_area_struct *vma = vmf->vma; in wp_page_reuse() local
2792 flush_cache_page(vma, vmf->address, pte_pfn(vmf->orig_pte)); in wp_page_reuse()
2794 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in wp_page_reuse()
2795 if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1)) in wp_page_reuse()
2796 update_mmu_cache(vma, vmf->address, vmf->pte); in wp_page_reuse()
2819 struct vm_area_struct *vma = vmf->vma; in wp_page_copy() local
2820 struct mm_struct *mm = vma->vm_mm; in wp_page_copy()
2827 if (unlikely(anon_vma_prepare(vma))) in wp_page_copy()
2831 new_page = alloc_zeroed_user_highpage_movable(vma, in wp_page_copy()
2836 new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, in wp_page_copy()
2861 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, mm, in wp_page_copy()
2880 flush_cache_page(vma, vmf->address, pte_pfn(vmf->orig_pte)); in wp_page_copy()
2881 entry = mk_pte(new_page, vma->vm_page_prot); in wp_page_copy()
2883 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in wp_page_copy()
2890 ptep_clear_flush_notify(vma, vmf->address, vmf->pte); in wp_page_copy()
2891 page_add_new_anon_rmap(new_page, vma, vmf->address, false); in wp_page_copy()
2892 lru_cache_add_inactive_or_unevictable(new_page, vma); in wp_page_copy()
2899 update_mmu_cache(vma, vmf->address, vmf->pte); in wp_page_copy()
2930 update_mmu_tlb(vma, vmf->address, vmf->pte); in wp_page_copy()
2947 if (page_copied && (vma->vm_flags & VM_LOCKED)) { in wp_page_copy()
2982 WARN_ON_ONCE(!(vmf->vma->vm_flags & VM_SHARED)); in finish_mkwrite_fault()
2983 vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address, in finish_mkwrite_fault()
2990 update_mmu_tlb(vmf->vma, vmf->address, vmf->pte); in finish_mkwrite_fault()
3004 struct vm_area_struct *vma = vmf->vma; in wp_pfn_shared() local
3006 if (vma->vm_ops && vma->vm_ops->pfn_mkwrite) { in wp_pfn_shared()
3011 ret = vma->vm_ops->pfn_mkwrite(vmf); in wp_pfn_shared()
3023 struct vm_area_struct *vma = vmf->vma; in wp_page_shared() local
3028 if (vma->vm_ops && vma->vm_ops->page_mkwrite) { in wp_page_shared()
3075 struct vm_area_struct *vma = vmf->vma; in do_wp_page() local
3077 if (userfaultfd_pte_wp(vma, *vmf->pte)) { in do_wp_page()
3082 vmf->page = vm_normal_page(vma, vmf->address, vmf->orig_pte); in do_wp_page()
3091 if ((vma->vm_flags & (VM_WRITE|VM_SHARED)) == in do_wp_page()
3123 } else if (unlikely((vma->vm_flags & (VM_WRITE|VM_SHARED)) == in do_wp_page()
3137 static void unmap_mapping_range_vma(struct vm_area_struct *vma, in unmap_mapping_range_vma() argument
3141 zap_page_range_single(vma, start_addr, end_addr - start_addr, details); in unmap_mapping_range_vma()
3147 struct vm_area_struct *vma; in unmap_mapping_range_tree() local
3150 vma_interval_tree_foreach(vma, root, in unmap_mapping_range_tree()
3153 vba = vma->vm_pgoff; in unmap_mapping_range_tree()
3154 vea = vba + vma_pages(vma) - 1; in unmap_mapping_range_tree()
3162 unmap_mapping_range_vma(vma, in unmap_mapping_range_tree()
3163 ((zba - vba) << PAGE_SHIFT) + vma->vm_start, in unmap_mapping_range_tree()
3164 ((zea - vba + 1) << PAGE_SHIFT) + vma->vm_start, in unmap_mapping_range_tree()
3243 struct vm_area_struct *vma = vmf->vma; in do_swap_page() local
3252 if (!pte_unmap_same(vma->vm_mm, vmf->pmd, vmf->pte, vmf->orig_pte)) in do_swap_page()
3258 migration_entry_wait(vma->vm_mm, vmf->pmd, in do_swap_page()
3266 print_bad_pte(vma, vmf->address, vmf->orig_pte, NULL); in do_swap_page()
3274 page = lookup_swap_cache(entry, vma, vmf->address); in do_swap_page()
3283 page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, in do_swap_page()
3294 err = mem_cgroup_charge(page, vma->vm_mm, in do_swap_page()
3320 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, in do_swap_page()
3331 count_memcg_event_mm(vma->vm_mm, PGMAJFAULT); in do_swap_page()
3342 locked = lock_page_or_retry(page, vma->vm_mm, vmf->flags); in do_swap_page()
3360 page = ksm_might_need_to_copy(page, vma, vmf->address); in do_swap_page()
3372 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in do_swap_page()
3392 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in do_swap_page()
3393 dec_mm_counter_fast(vma->vm_mm, MM_SWAPENTS); in do_swap_page()
3394 pte = mk_pte(page, vma->vm_page_prot); in do_swap_page()
3396 pte = maybe_mkwrite(pte_mkdirty(pte), vma); in do_swap_page()
3401 flush_icache_page(vma, page); in do_swap_page()
3408 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, pte); in do_swap_page()
3409 arch_do_swap_page(vma->vm_mm, vma, vmf->address, pte, vmf->orig_pte); in do_swap_page()
3414 page_add_new_anon_rmap(page, vma, vmf->address, false); in do_swap_page()
3415 lru_cache_add_inactive_or_unevictable(page, vma); in do_swap_page()
3417 do_page_add_anon_rmap(page, vma, vmf->address, exclusive); in do_swap_page()
3422 (vma->vm_flags & VM_LOCKED) || PageMlocked(page)) in do_swap_page()
3446 update_mmu_cache(vma, vmf->address, vmf->pte); in do_swap_page()
3471 struct vm_area_struct *vma = vmf->vma; in do_anonymous_page() local
3477 if (vma->vm_flags & VM_SHARED) in do_anonymous_page()
3490 if (pte_alloc(vma->vm_mm, vmf->pmd)) in do_anonymous_page()
3499 !mm_forbids_zeropage(vma->vm_mm)) { in do_anonymous_page()
3501 vma->vm_page_prot)); in do_anonymous_page()
3502 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, in do_anonymous_page()
3505 update_mmu_tlb(vma, vmf->address, vmf->pte); in do_anonymous_page()
3508 ret = check_stable_address_space(vma->vm_mm); in do_anonymous_page()
3512 if (userfaultfd_missing(vma)) { in do_anonymous_page()
3520 if (unlikely(anon_vma_prepare(vma))) in do_anonymous_page()
3522 page = alloc_zeroed_user_highpage_movable(vma, vmf->address); in do_anonymous_page()
3526 if (mem_cgroup_charge(page, vma->vm_mm, GFP_KERNEL)) in do_anonymous_page()
3537 entry = mk_pte(page, vma->vm_page_prot); in do_anonymous_page()
3539 if (vma->vm_flags & VM_WRITE) in do_anonymous_page()
3542 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in do_anonymous_page()
3545 update_mmu_cache(vma, vmf->address, vmf->pte); in do_anonymous_page()
3549 ret = check_stable_address_space(vma->vm_mm); in do_anonymous_page()
3554 if (userfaultfd_missing(vma)) { in do_anonymous_page()
3560 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in do_anonymous_page()
3561 page_add_new_anon_rmap(page, vma, vmf->address, false); in do_anonymous_page()
3562 lru_cache_add_inactive_or_unevictable(page, vma); in do_anonymous_page()
3564 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, entry); in do_anonymous_page()
3567 update_mmu_cache(vma, vmf->address, vmf->pte); in do_anonymous_page()
3587 struct vm_area_struct *vma = vmf->vma; in __do_fault() local
3606 vmf->prealloc_pte = pte_alloc_one(vma->vm_mm); in __do_fault()
3612 ret = vma->vm_ops->fault(vmf); in __do_fault()
3646 struct vm_area_struct *vma = vmf->vma; in pte_alloc_one_map() local
3651 vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd); in pte_alloc_one_map()
3657 mm_inc_nr_ptes(vma->vm_mm); in pte_alloc_one_map()
3658 pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte); in pte_alloc_one_map()
3661 } else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) { in pte_alloc_one_map()
3688 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in pte_alloc_one_map()
3696 struct vm_area_struct *vma = vmf->vma; in deposit_prealloc_pte() local
3698 pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, vmf->prealloc_pte); in deposit_prealloc_pte()
3703 mm_inc_nr_ptes(vma->vm_mm); in deposit_prealloc_pte()
3709 struct vm_area_struct *vma = vmf->vma; in do_set_pmd() local
3716 if (!transhuge_vma_suitable(vma, haddr)) in do_set_pmd()
3728 vmf->prealloc_pte = pte_alloc_one(vma->vm_mm); in do_set_pmd()
3734 vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd); in do_set_pmd()
3739 flush_icache_page(vma, page + i); in do_set_pmd()
3741 entry = mk_huge_pmd(page, vma->vm_page_prot); in do_set_pmd()
3743 entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma); in do_set_pmd()
3745 add_mm_counter(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); in do_set_pmd()
3753 set_pmd_at(vma->vm_mm, haddr, vmf->pmd, entry); in do_set_pmd()
3755 update_mmu_cache_pmd(vma, haddr, vmf->pmd); in do_set_pmd()
3789 struct vm_area_struct *vma = vmf->vma; in alloc_set_pte() local
3808 update_mmu_tlb(vma, vmf->address, vmf->pte); in alloc_set_pte()
3812 flush_icache_page(vma, page); in alloc_set_pte()
3813 entry = mk_pte(page, vma->vm_page_prot); in alloc_set_pte()
3816 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in alloc_set_pte()
3818 if (write && !(vma->vm_flags & VM_SHARED)) { in alloc_set_pte()
3819 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in alloc_set_pte()
3820 page_add_new_anon_rmap(page, vma, vmf->address, false); in alloc_set_pte()
3821 lru_cache_add_inactive_or_unevictable(page, vma); in alloc_set_pte()
3823 inc_mm_counter_fast(vma->vm_mm, mm_counter_file(page)); in alloc_set_pte()
3826 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, entry); in alloc_set_pte()
3829 update_mmu_cache(vma, vmf->address, vmf->pte); in alloc_set_pte()
3857 !(vmf->vma->vm_flags & VM_SHARED)) in finish_fault()
3866 if (!(vmf->vma->vm_flags & VM_SHARED)) in finish_fault()
3867 ret = check_stable_address_space(vmf->vma->vm_mm); in finish_fault()
3946 vmf->address = max(address & mask, vmf->vma->vm_start); in do_fault_around()
3957 end_pgoff = min3(end_pgoff, vma_pages(vmf->vma) + vmf->vma->vm_pgoff - 1, in do_fault_around()
3961 vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm); in do_fault_around()
3967 vmf->vma->vm_ops->map_pages(vmf, start_pgoff, end_pgoff); in do_fault_around()
3992 struct vm_area_struct *vma = vmf->vma; in do_read_fault() local
4000 if (vma->vm_ops->map_pages && fault_around_bytes >> PAGE_SHIFT > 1) { in do_read_fault()
4019 struct vm_area_struct *vma = vmf->vma; in do_cow_fault() local
4022 if (unlikely(anon_vma_prepare(vma))) in do_cow_fault()
4025 vmf->cow_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vmf->address); in do_cow_fault()
4029 if (mem_cgroup_charge(vmf->cow_page, vma->vm_mm, GFP_KERNEL)) { in do_cow_fault()
4041 copy_user_highpage(vmf->cow_page, vmf->page, vmf->address, vma); in do_cow_fault()
4057 struct vm_area_struct *vma = vmf->vma; in do_shared_fault() local
4068 if (vma->vm_ops->page_mkwrite) { in do_shared_fault()
4100 struct vm_area_struct *vma = vmf->vma; in do_fault() local
4101 struct mm_struct *vm_mm = vma->vm_mm; in do_fault()
4107 if (!vma->vm_ops->fault) { in do_fault()
4115 vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, in do_fault()
4135 else if (!(vma->vm_flags & VM_SHARED)) in do_fault()
4148 static int numa_migrate_prep(struct page *page, struct vm_area_struct *vma, in numa_migrate_prep() argument
4160 return mpol_misplaced(page, vma, addr); in numa_migrate_prep()
4165 struct vm_area_struct *vma = vmf->vma; in do_numa_page() local
4180 vmf->ptl = pte_lockptr(vma->vm_mm, vmf->pmd); in do_numa_page()
4191 old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte); in do_numa_page()
4192 pte = pte_modify(old_pte, vma->vm_page_prot); in do_numa_page()
4196 ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte); in do_numa_page()
4197 update_mmu_cache(vma, vmf->address, vmf->pte); in do_numa_page()
4199 page = vm_normal_page(vma, vmf->address, pte); in do_numa_page()
4226 if (page_mapcount(page) > 1 && (vma->vm_flags & VM_SHARED)) in do_numa_page()
4231 target_nid = numa_migrate_prep(page, vma, vmf->address, page_nid, in do_numa_page()
4240 migrated = migrate_misplaced_page(page, vma, target_nid); in do_numa_page()
4255 if (vma_is_anonymous(vmf->vma)) in create_huge_pmd()
4257 if (vmf->vma->vm_ops->huge_fault) in create_huge_pmd()
4258 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PMD); in create_huge_pmd()
4265 if (vma_is_anonymous(vmf->vma)) { in wp_huge_pmd()
4266 if (userfaultfd_huge_pmd_wp(vmf->vma, orig_pmd)) in wp_huge_pmd()
4270 if (vmf->vma->vm_ops->huge_fault) { in wp_huge_pmd()
4271 vm_fault_t ret = vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PMD); in wp_huge_pmd()
4278 __split_huge_pmd(vmf->vma, vmf->pmd, vmf->address, false, NULL); in wp_huge_pmd()
4288 if (vma_is_anonymous(vmf->vma)) in create_huge_pud()
4290 if (vmf->vma->vm_ops->huge_fault) { in create_huge_pud()
4291 vm_fault_t ret = vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PUD); in create_huge_pud()
4298 __split_huge_pud(vmf->vma, vmf->pud, vmf->address); in create_huge_pud()
4307 if (vma_is_anonymous(vmf->vma)) in wp_huge_pud()
4309 if (vmf->vma->vm_ops->huge_fault) in wp_huge_pud()
4310 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PUD); in wp_huge_pud()
4371 if (vma_is_anonymous(vmf->vma)) in handle_pte_fault()
4380 if (pte_protnone(vmf->orig_pte) && vma_is_accessible(vmf->vma)) in handle_pte_fault()
4383 vmf->ptl = pte_lockptr(vmf->vma->vm_mm, vmf->pmd); in handle_pte_fault()
4387 update_mmu_tlb(vmf->vma, vmf->address, vmf->pte); in handle_pte_fault()
4396 if (ptep_set_access_flags(vmf->vma, vmf->address, vmf->pte, entry, in handle_pte_fault()
4398 update_mmu_cache(vmf->vma, vmf->address, vmf->pte); in handle_pte_fault()
4410 flush_tlb_fix_spurious_fault(vmf->vma, vmf->address); in handle_pte_fault()
4423 static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, in __handle_mm_fault() argument
4427 .vma = vma, in __handle_mm_fault()
4430 .pgoff = linear_page_index(vma, address), in __handle_mm_fault()
4431 .gfp_mask = __get_fault_gfp_mask(vma), in __handle_mm_fault()
4434 struct mm_struct *mm = vma->vm_mm; in __handle_mm_fault()
4448 if (pud_none(*vmf.pud) && __transparent_hugepage_enabled(vma)) { in __handle_mm_fault()
4479 if (pmd_none(*vmf.pmd) && __transparent_hugepage_enabled(vma)) { in __handle_mm_fault()
4495 if (pmd_protnone(orig_pmd) && vma_is_accessible(vma)) in __handle_mm_fault()
4579 vm_fault_t handle_mm_fault(struct vm_area_struct *vma, unsigned long address, in handle_mm_fault() argument
4587 count_memcg_event_mm(vma->vm_mm, PGFAULT); in handle_mm_fault()
4592 if (!arch_vma_access_permitted(vma, flags & FAULT_FLAG_WRITE, in handle_mm_fault()
4604 if (unlikely(is_vm_hugetlb_page(vma))) in handle_mm_fault()
4605 ret = hugetlb_fault(vma->vm_mm, vma, address, flags); in handle_mm_fault()
4607 ret = __handle_mm_fault(vma, address, flags); in handle_mm_fault()
4802 int follow_pfn(struct vm_area_struct *vma, unsigned long address, in follow_pfn() argument
4809 if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) in follow_pfn()
4812 ret = follow_pte(vma->vm_mm, address, &ptep, &ptl); in follow_pfn()
4822 int follow_phys(struct vm_area_struct *vma, in follow_phys() argument
4830 if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) in follow_phys()
4833 if (follow_pte(vma->vm_mm, address, &ptep, &ptl)) in follow_phys()
4850 int generic_access_phys(struct vm_area_struct *vma, unsigned long addr, in generic_access_phys() argument
4858 if (follow_phys(vma, addr, write, &prot, &phys_addr)) in generic_access_phys()
4883 struct vm_area_struct *vma; in __access_remote_vm() local
4897 gup_flags, &page, &vma, NULL); in __access_remote_vm()
4906 vma = find_vma(mm, addr); in __access_remote_vm()
4907 if (!vma || vma->vm_start > addr) in __access_remote_vm()
4909 if (vma->vm_ops && vma->vm_ops->access) in __access_remote_vm()
4910 ret = vma->vm_ops->access(vma, addr, buf, in __access_remote_vm()
4924 copy_to_user_page(vma, page, addr, in __access_remote_vm()
4928 copy_from_user_page(vma, page, addr, in __access_remote_vm()
4990 struct vm_area_struct *vma; in print_vma_addr() local
4998 vma = find_vma(mm, ip); in print_vma_addr()
4999 if (vma && vma->vm_file) { in print_vma_addr()
5000 struct file *f = vma->vm_file; in print_vma_addr()
5009 vma->vm_start, in print_vma_addr()
5010 vma->vm_end - vma->vm_start); in print_vma_addr()
5129 struct vm_area_struct *vma, in copy_user_gigantic_page() argument
5138 copy_user_highpage(dst, src, addr + i*PAGE_SIZE, vma); in copy_user_gigantic_page()
5149 struct vm_area_struct *vma; member
5157 addr, copy_arg->vma); in copy_subpage()
5161 unsigned long addr_hint, struct vm_area_struct *vma, in copy_user_huge_page() argument
5169 .vma = vma, in copy_user_huge_page()
5173 copy_user_gigantic_page(dst, src, addr, vma, in copy_user_huge_page()