Lines Matching refs:vma
389 void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma, in free_pgtables() argument
392 while (vma) { in free_pgtables()
393 struct vm_area_struct *next = vma->vm_next; in free_pgtables()
394 unsigned long addr = vma->vm_start; in free_pgtables()
400 unlink_anon_vmas(vma); in free_pgtables()
401 unlink_file_vma(vma); in free_pgtables()
403 if (is_vm_hugetlb_page(vma)) { in free_pgtables()
404 hugetlb_free_pgd_range(tlb, addr, vma->vm_end, in free_pgtables()
410 while (next && next->vm_start <= vma->vm_end + PMD_SIZE in free_pgtables()
412 vma = next; in free_pgtables()
413 next = vma->vm_next; in free_pgtables()
414 unlink_anon_vmas(vma); in free_pgtables()
415 unlink_file_vma(vma); in free_pgtables()
417 free_pgd_range(tlb, addr, vma->vm_end, in free_pgtables()
420 vma = next; in free_pgtables()
500 static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr, in print_bad_pte() argument
503 pgd_t *pgd = pgd_offset(vma->vm_mm, addr); in print_bad_pte()
532 mapping = vma->vm_file ? vma->vm_file->f_mapping : NULL; in print_bad_pte()
533 index = linear_page_index(vma, addr); in print_bad_pte()
541 (void *)addr, vma->vm_flags, vma->anon_vma, mapping, index); in print_bad_pte()
543 vma->vm_file, in print_bad_pte()
544 vma->vm_ops ? vma->vm_ops->fault : NULL, in print_bad_pte()
545 vma->vm_file ? vma->vm_file->f_op->mmap : NULL, in print_bad_pte()
593 struct page *vm_normal_page(struct vm_area_struct *vma, unsigned long addr, in vm_normal_page() argument
601 if (vma->vm_ops && vma->vm_ops->find_special_page) in vm_normal_page()
602 return vma->vm_ops->find_special_page(vma, addr); in vm_normal_page()
603 if (vma->vm_flags & (VM_PFNMAP | VM_MIXEDMAP)) in vm_normal_page()
610 print_bad_pte(vma, addr, pte, NULL); in vm_normal_page()
616 if (unlikely(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))) { in vm_normal_page()
617 if (vma->vm_flags & VM_MIXEDMAP) { in vm_normal_page()
623 off = (addr - vma->vm_start) >> PAGE_SHIFT; in vm_normal_page()
624 if (pfn == vma->vm_pgoff + off) in vm_normal_page()
626 if (!is_cow_mapping(vma->vm_flags)) in vm_normal_page()
636 print_bad_pte(vma, addr, pte, NULL); in vm_normal_page()
649 struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr, in vm_normal_page_pmd() argument
659 if (unlikely(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))) { in vm_normal_page_pmd()
660 if (vma->vm_flags & VM_MIXEDMAP) { in vm_normal_page_pmd()
666 off = (addr - vma->vm_start) >> PAGE_SHIFT; in vm_normal_page_pmd()
667 if (pfn == vma->vm_pgoff + off) in vm_normal_page_pmd()
669 if (!is_cow_mapping(vma->vm_flags)) in vm_normal_page_pmd()
698 pte_t *dst_pte, pte_t *src_pte, struct vm_area_struct *vma, in copy_one_pte() argument
701 unsigned long vm_flags = vma->vm_flags; in copy_one_pte()
789 page = vm_normal_page(vma, addr, pte); in copy_one_pte()
804 pmd_t *dst_pmd, pmd_t *src_pmd, struct vm_area_struct *vma, in copy_pte_range() argument
843 vma, addr, rss); in copy_pte_range()
867 pud_t *dst_pud, pud_t *src_pud, struct vm_area_struct *vma, in copy_pmd_range() argument
882 VM_BUG_ON_VMA(next-addr != HPAGE_PMD_SIZE, vma); in copy_pmd_range()
884 dst_pmd, src_pmd, addr, vma); in copy_pmd_range()
894 vma, addr, next)) in copy_pmd_range()
901 p4d_t *dst_p4d, p4d_t *src_p4d, struct vm_area_struct *vma, in copy_pud_range() argument
916 VM_BUG_ON_VMA(next-addr != HPAGE_PUD_SIZE, vma); in copy_pud_range()
918 dst_pud, src_pud, addr, vma); in copy_pud_range()
928 vma, addr, next)) in copy_pud_range()
935 pgd_t *dst_pgd, pgd_t *src_pgd, struct vm_area_struct *vma, in copy_p4d_range() argument
950 vma, addr, next)) in copy_p4d_range()
957 struct vm_area_struct *vma) in copy_page_range() argument
961 unsigned long addr = vma->vm_start; in copy_page_range()
962 unsigned long end = vma->vm_end; in copy_page_range()
973 if (!(vma->vm_flags & (VM_HUGETLB | VM_PFNMAP | VM_MIXEDMAP)) && in copy_page_range()
974 !vma->anon_vma) in copy_page_range()
977 if (is_vm_hugetlb_page(vma)) in copy_page_range()
978 return copy_hugetlb_page_range(dst_mm, src_mm, vma); in copy_page_range()
980 if (unlikely(vma->vm_flags & VM_PFNMAP)) { in copy_page_range()
985 ret = track_pfn_copy(vma); in copy_page_range()
996 is_cow = is_cow_mapping(vma->vm_flags); in copy_page_range()
1000 0, vma, src_mm, addr, end); in copy_page_range()
1012 vma, addr, next))) { in copy_page_range()
1024 struct vm_area_struct *vma, pmd_t *pmd, in zap_pte_range() argument
1054 page = vm_normal_page(vma, addr, ptent); in zap_pte_range()
1077 likely(!(vma->vm_flags & VM_SEQ_READ))) in zap_pte_range()
1083 print_bad_pte(vma, addr, ptent, page); in zap_pte_range()
1127 print_bad_pte(vma, addr, ptent, NULL); in zap_pte_range()
1159 struct vm_area_struct *vma, pud_t *pud, in zap_pmd_range() argument
1171 __split_huge_pmd(vma, pmd, addr, false, NULL); in zap_pmd_range()
1172 else if (zap_huge_pmd(tlb, vma, pmd, addr)) in zap_pmd_range()
1185 next = zap_pte_range(tlb, vma, pmd, addr, next, details); in zap_pmd_range()
1194 struct vm_area_struct *vma, p4d_t *p4d, in zap_pud_range() argument
1206 VM_BUG_ON_VMA(!rwsem_is_locked(&tlb->mm->mmap_sem), vma); in zap_pud_range()
1207 split_huge_pud(vma, pud, addr); in zap_pud_range()
1208 } else if (zap_huge_pud(tlb, vma, pud, addr)) in zap_pud_range()
1214 next = zap_pmd_range(tlb, vma, pud, addr, next, details); in zap_pud_range()
1223 struct vm_area_struct *vma, pgd_t *pgd, in zap_p4d_range() argument
1235 next = zap_pud_range(tlb, vma, p4d, addr, next, details); in zap_p4d_range()
1242 struct vm_area_struct *vma, in unmap_page_range() argument
1250 tlb_start_vma(tlb, vma); in unmap_page_range()
1251 pgd = pgd_offset(vma->vm_mm, addr); in unmap_page_range()
1256 next = zap_p4d_range(tlb, vma, pgd, addr, next, details); in unmap_page_range()
1258 tlb_end_vma(tlb, vma); in unmap_page_range()
1263 struct vm_area_struct *vma, unsigned long start_addr, in unmap_single_vma() argument
1267 unsigned long start = max(vma->vm_start, start_addr); in unmap_single_vma()
1270 if (start >= vma->vm_end) in unmap_single_vma()
1272 end = min(vma->vm_end, end_addr); in unmap_single_vma()
1273 if (end <= vma->vm_start) in unmap_single_vma()
1276 if (vma->vm_file) in unmap_single_vma()
1277 uprobe_munmap(vma, start, end); in unmap_single_vma()
1279 if (unlikely(vma->vm_flags & VM_PFNMAP)) in unmap_single_vma()
1280 untrack_pfn(vma, 0, 0); in unmap_single_vma()
1283 if (unlikely(is_vm_hugetlb_page(vma))) { in unmap_single_vma()
1295 if (vma->vm_file) { in unmap_single_vma()
1296 i_mmap_lock_write(vma->vm_file->f_mapping); in unmap_single_vma()
1297 __unmap_hugepage_range_final(tlb, vma, start, end, NULL); in unmap_single_vma()
1298 i_mmap_unlock_write(vma->vm_file->f_mapping); in unmap_single_vma()
1301 unmap_page_range(tlb, vma, start, end, details); in unmap_single_vma()
1324 struct vm_area_struct *vma, unsigned long start_addr, in unmap_vmas() argument
1329 mmu_notifier_range_init(&range, MMU_NOTIFY_UNMAP, 0, vma, vma->vm_mm, in unmap_vmas()
1332 for ( ; vma && vma->vm_start < end_addr; vma = vma->vm_next) in unmap_vmas()
1333 unmap_single_vma(tlb, vma, start_addr, end_addr, NULL); in unmap_vmas()
1345 void zap_page_range(struct vm_area_struct *vma, unsigned long start, in zap_page_range() argument
1352 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, vma->vm_mm, in zap_page_range()
1354 tlb_gather_mmu(&tlb, vma->vm_mm, start, range.end); in zap_page_range()
1355 update_hiwater_rss(vma->vm_mm); in zap_page_range()
1357 for ( ; vma && vma->vm_start < range.end; vma = vma->vm_next) in zap_page_range()
1358 unmap_single_vma(&tlb, vma, start, range.end, NULL); in zap_page_range()
1372 static void zap_page_range_single(struct vm_area_struct *vma, unsigned long address, in zap_page_range_single() argument
1379 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, vma->vm_mm, in zap_page_range_single()
1381 tlb_gather_mmu(&tlb, vma->vm_mm, address, range.end); in zap_page_range_single()
1382 update_hiwater_rss(vma->vm_mm); in zap_page_range_single()
1384 unmap_single_vma(&tlb, vma, address, range.end, details); in zap_page_range_single()
1400 void zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, in zap_vma_ptes() argument
1403 if (address < vma->vm_start || address + size > vma->vm_end || in zap_vma_ptes()
1404 !(vma->vm_flags & VM_PFNMAP)) in zap_vma_ptes()
1407 zap_page_range_single(vma, address, size, NULL); in zap_vma_ptes()
1441 static int insert_page(struct vm_area_struct *vma, unsigned long addr, in insert_page() argument
1444 struct mm_struct *mm = vma->vm_mm; in insert_page()
1503 int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, in vm_insert_page() argument
1506 if (addr < vma->vm_start || addr >= vma->vm_end) in vm_insert_page()
1510 if (!(vma->vm_flags & VM_MIXEDMAP)) { in vm_insert_page()
1511 BUG_ON(down_read_trylock(&vma->vm_mm->mmap_sem)); in vm_insert_page()
1512 BUG_ON(vma->vm_flags & VM_PFNMAP); in vm_insert_page()
1513 vma->vm_flags |= VM_MIXEDMAP; in vm_insert_page()
1515 return insert_page(vma, addr, page, vma->vm_page_prot); in vm_insert_page()
1530 static int __vm_map_pages(struct vm_area_struct *vma, struct page **pages, in __vm_map_pages() argument
1533 unsigned long count = vma_pages(vma); in __vm_map_pages()
1534 unsigned long uaddr = vma->vm_start; in __vm_map_pages()
1546 ret = vm_insert_page(vma, uaddr, pages[offset + i]); in __vm_map_pages()
1573 int vm_map_pages(struct vm_area_struct *vma, struct page **pages, in vm_map_pages() argument
1576 return __vm_map_pages(vma, pages, num, vma->vm_pgoff); in vm_map_pages()
1593 int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages, in vm_map_pages_zero() argument
1596 return __vm_map_pages(vma, pages, num, 0); in vm_map_pages_zero()
1600 static vm_fault_t insert_pfn(struct vm_area_struct *vma, unsigned long addr, in insert_pfn() argument
1603 struct mm_struct *mm = vma->vm_mm; in insert_pfn()
1627 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in insert_pfn()
1628 if (ptep_set_access_flags(vma, addr, pte, entry, 1)) in insert_pfn()
1629 update_mmu_cache(vma, addr, pte); in insert_pfn()
1642 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in insert_pfn()
1646 update_mmu_cache(vma, addr, pte); /* XXX: why not for insert_page? */ in insert_pfn()
1671 vm_fault_t vmf_insert_pfn_prot(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_pfn_prot() argument
1680 BUG_ON(!(vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP))); in vmf_insert_pfn_prot()
1681 BUG_ON((vma->vm_flags & (VM_PFNMAP|VM_MIXEDMAP)) == in vmf_insert_pfn_prot()
1683 BUG_ON((vma->vm_flags & VM_PFNMAP) && is_cow_mapping(vma->vm_flags)); in vmf_insert_pfn_prot()
1684 BUG_ON((vma->vm_flags & VM_MIXEDMAP) && pfn_valid(pfn)); in vmf_insert_pfn_prot()
1686 if (addr < vma->vm_start || addr >= vma->vm_end) in vmf_insert_pfn_prot()
1692 track_pfn_insert(vma, &pgprot, __pfn_to_pfn_t(pfn, PFN_DEV)); in vmf_insert_pfn_prot()
1694 return insert_pfn(vma, addr, __pfn_to_pfn_t(pfn, PFN_DEV), pgprot, in vmf_insert_pfn_prot()
1719 vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_pfn() argument
1722 return vmf_insert_pfn_prot(vma, addr, pfn, vma->vm_page_prot); in vmf_insert_pfn()
1726 static bool vm_mixed_ok(struct vm_area_struct *vma, pfn_t pfn) in vm_mixed_ok() argument
1729 if (vma->vm_flags & VM_MIXEDMAP) in vm_mixed_ok()
1740 static vm_fault_t __vm_insert_mixed(struct vm_area_struct *vma, in __vm_insert_mixed() argument
1743 pgprot_t pgprot = vma->vm_page_prot; in __vm_insert_mixed()
1746 BUG_ON(!vm_mixed_ok(vma, pfn)); in __vm_insert_mixed()
1748 if (addr < vma->vm_start || addr >= vma->vm_end) in __vm_insert_mixed()
1751 track_pfn_insert(vma, &pgprot, pfn); in __vm_insert_mixed()
1773 err = insert_page(vma, addr, page, pgprot); in __vm_insert_mixed()
1775 return insert_pfn(vma, addr, pfn, pgprot, mkwrite); in __vm_insert_mixed()
1786 vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, in vmf_insert_mixed() argument
1789 return __vm_insert_mixed(vma, addr, pfn, false); in vmf_insert_mixed()
1798 vm_fault_t vmf_insert_mixed_mkwrite(struct vm_area_struct *vma, in vmf_insert_mixed_mkwrite() argument
1801 return __vm_insert_mixed(vma, addr, pfn, true); in vmf_insert_mixed_mkwrite()
1915 int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, in remap_pfn_range() argument
1921 struct mm_struct *mm = vma->vm_mm; in remap_pfn_range()
1943 if (is_cow_mapping(vma->vm_flags)) { in remap_pfn_range()
1944 if (addr != vma->vm_start || end != vma->vm_end) in remap_pfn_range()
1946 vma->vm_pgoff = pfn; in remap_pfn_range()
1949 err = track_pfn_remap(vma, &prot, remap_pfn, addr, PAGE_ALIGN(size)); in remap_pfn_range()
1953 vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP; in remap_pfn_range()
1958 flush_cache_range(vma, addr, end); in remap_pfn_range()
1968 untrack_pfn(vma, remap_pfn, PAGE_ALIGN(size)); in remap_pfn_range()
1989 int vm_iomap_memory(struct vm_area_struct *vma, phys_addr_t start, unsigned long len) in vm_iomap_memory() argument
2008 if (vma->vm_pgoff > pages) in vm_iomap_memory()
2010 pfn += vma->vm_pgoff; in vm_iomap_memory()
2011 pages -= vma->vm_pgoff; in vm_iomap_memory()
2014 vm_len = vma->vm_end - vma->vm_start; in vm_iomap_memory()
2019 return io_remap_pfn_range(vma, vma->vm_start, pfn, vm_len, vma->vm_page_prot); in vm_iomap_memory()
2167 …oid cow_user_page(struct page *dst, struct page *src, unsigned long va, struct vm_area_struct *vma) in cow_user_page() argument
2192 copy_user_highpage(dst, src, va, vma); in cow_user_page()
2195 static gfp_t __get_fault_gfp_mask(struct vm_area_struct *vma) in __get_fault_gfp_mask() argument
2197 struct file *vm_file = vma->vm_file; in __get_fault_gfp_mask()
2223 if (vmf->vma->vm_file && in do_page_mkwrite()
2224 IS_SWAPFILE(vmf->vma->vm_file->f_mapping->host)) in do_page_mkwrite()
2227 ret = vmf->vma->vm_ops->page_mkwrite(vmf); in do_page_mkwrite()
2251 struct vm_area_struct *vma = vmf->vma; in fault_dirty_shared_page() local
2255 bool page_mkwrite = vma->vm_ops && vma->vm_ops->page_mkwrite; in fault_dirty_shared_page()
2269 file_update_time(vma->vm_file); in fault_dirty_shared_page()
2305 struct vm_area_struct *vma = vmf->vma; in wp_page_reuse() local
2316 flush_cache_page(vma, vmf->address, pte_pfn(vmf->orig_pte)); in wp_page_reuse()
2318 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in wp_page_reuse()
2319 if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1)) in wp_page_reuse()
2320 update_mmu_cache(vma, vmf->address, vmf->pte); in wp_page_reuse()
2342 struct vm_area_struct *vma = vmf->vma; in wp_page_copy() local
2343 struct mm_struct *mm = vma->vm_mm; in wp_page_copy()
2351 if (unlikely(anon_vma_prepare(vma))) in wp_page_copy()
2355 new_page = alloc_zeroed_user_highpage_movable(vma, in wp_page_copy()
2360 new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, in wp_page_copy()
2364 cow_user_page(new_page, old_page, vmf->address, vma); in wp_page_copy()
2372 mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, vma, mm, in wp_page_copy()
2391 flush_cache_page(vma, vmf->address, pte_pfn(vmf->orig_pte)); in wp_page_copy()
2392 entry = mk_pte(new_page, vma->vm_page_prot); in wp_page_copy()
2393 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in wp_page_copy()
2400 ptep_clear_flush_notify(vma, vmf->address, vmf->pte); in wp_page_copy()
2401 page_add_new_anon_rmap(new_page, vma, vmf->address, false); in wp_page_copy()
2403 lru_cache_add_active_or_unevictable(new_page, vma); in wp_page_copy()
2410 update_mmu_cache(vma, vmf->address, vmf->pte); in wp_page_copy()
2458 if (page_copied && (vma->vm_flags & VM_LOCKED)) { in wp_page_copy()
2493 WARN_ON_ONCE(!(vmf->vma->vm_flags & VM_SHARED)); in finish_mkwrite_fault()
2494 vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, vmf->pmd, vmf->address, in finish_mkwrite_fault()
2514 struct vm_area_struct *vma = vmf->vma; in wp_pfn_shared() local
2516 if (vma->vm_ops && vma->vm_ops->pfn_mkwrite) { in wp_pfn_shared()
2521 ret = vma->vm_ops->pfn_mkwrite(vmf); in wp_pfn_shared()
2533 struct vm_area_struct *vma = vmf->vma; in wp_page_shared() local
2538 if (vma->vm_ops && vma->vm_ops->page_mkwrite) { in wp_page_shared()
2585 struct vm_area_struct *vma = vmf->vma; in do_wp_page() local
2587 vmf->page = vm_normal_page(vma, vmf->address, vmf->orig_pte); in do_wp_page()
2596 if ((vma->vm_flags & (VM_WRITE|VM_SHARED)) == in do_wp_page()
2617 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, in do_wp_page()
2628 bool reused = reuse_ksm_page(vmf->page, vmf->vma, in do_wp_page()
2645 page_move_anon_rmap(vmf->page, vma); in do_wp_page()
2652 } else if (unlikely((vma->vm_flags & (VM_WRITE|VM_SHARED)) == in do_wp_page()
2666 static void unmap_mapping_range_vma(struct vm_area_struct *vma, in unmap_mapping_range_vma() argument
2670 zap_page_range_single(vma, start_addr, end_addr - start_addr, details); in unmap_mapping_range_vma()
2676 struct vm_area_struct *vma; in unmap_mapping_range_tree() local
2679 vma_interval_tree_foreach(vma, root, in unmap_mapping_range_tree()
2682 vba = vma->vm_pgoff; in unmap_mapping_range_tree()
2683 vea = vba + vma_pages(vma) - 1; in unmap_mapping_range_tree()
2691 unmap_mapping_range_vma(vma, in unmap_mapping_range_tree()
2692 ((zba - vba) << PAGE_SHIFT) + vma->vm_start, in unmap_mapping_range_tree()
2693 ((zea - vba + 1) << PAGE_SHIFT) + vma->vm_start, in unmap_mapping_range_tree()
2772 struct vm_area_struct *vma = vmf->vma; in do_swap_page() local
2781 if (!pte_unmap_same(vma->vm_mm, vmf->pmd, vmf->pte, vmf->orig_pte)) in do_swap_page()
2787 migration_entry_wait(vma->vm_mm, vmf->pmd, in do_swap_page()
2795 print_bad_pte(vma, vmf->address, vmf->orig_pte, NULL); in do_swap_page()
2803 page = lookup_swap_cache(entry, vma, vmf->address); in do_swap_page()
2812 page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, in do_swap_page()
2832 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, in do_swap_page()
2843 count_memcg_event_mm(vma->vm_mm, PGMAJFAULT); in do_swap_page()
2854 locked = lock_page_or_retry(page, vma->vm_mm, vmf->flags); in do_swap_page()
2872 page = ksm_might_need_to_copy(page, vma, vmf->address); in do_swap_page()
2879 if (mem_cgroup_try_charge_delay(page, vma->vm_mm, GFP_KERNEL, in do_swap_page()
2888 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in do_swap_page()
2908 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in do_swap_page()
2909 dec_mm_counter_fast(vma->vm_mm, MM_SWAPENTS); in do_swap_page()
2910 pte = mk_pte(page, vma->vm_page_prot); in do_swap_page()
2912 pte = maybe_mkwrite(pte_mkdirty(pte), vma); in do_swap_page()
2917 flush_icache_page(vma, page); in do_swap_page()
2920 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, pte); in do_swap_page()
2921 arch_do_swap_page(vma->vm_mm, vma, vmf->address, pte, vmf->orig_pte); in do_swap_page()
2926 page_add_new_anon_rmap(page, vma, vmf->address, false); in do_swap_page()
2928 lru_cache_add_active_or_unevictable(page, vma); in do_swap_page()
2930 do_page_add_anon_rmap(page, vma, vmf->address, exclusive); in do_swap_page()
2937 (vma->vm_flags & VM_LOCKED) || PageMlocked(page)) in do_swap_page()
2961 update_mmu_cache(vma, vmf->address, vmf->pte); in do_swap_page()
2987 struct vm_area_struct *vma = vmf->vma; in do_anonymous_page() local
2994 if (vma->vm_flags & VM_SHARED) in do_anonymous_page()
3007 if (pte_alloc(vma->vm_mm, vmf->pmd)) in do_anonymous_page()
3016 !mm_forbids_zeropage(vma->vm_mm)) { in do_anonymous_page()
3018 vma->vm_page_prot)); in do_anonymous_page()
3019 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, in do_anonymous_page()
3023 ret = check_stable_address_space(vma->vm_mm); in do_anonymous_page()
3027 if (userfaultfd_missing(vma)) { in do_anonymous_page()
3035 if (unlikely(anon_vma_prepare(vma))) in do_anonymous_page()
3037 page = alloc_zeroed_user_highpage_movable(vma, vmf->address); in do_anonymous_page()
3041 if (mem_cgroup_try_charge_delay(page, vma->vm_mm, GFP_KERNEL, &memcg, in do_anonymous_page()
3052 entry = mk_pte(page, vma->vm_page_prot); in do_anonymous_page()
3053 if (vma->vm_flags & VM_WRITE) in do_anonymous_page()
3056 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in do_anonymous_page()
3061 ret = check_stable_address_space(vma->vm_mm); in do_anonymous_page()
3066 if (userfaultfd_missing(vma)) { in do_anonymous_page()
3073 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in do_anonymous_page()
3074 page_add_new_anon_rmap(page, vma, vmf->address, false); in do_anonymous_page()
3076 lru_cache_add_active_or_unevictable(page, vma); in do_anonymous_page()
3078 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, entry); in do_anonymous_page()
3081 update_mmu_cache(vma, vmf->address, vmf->pte); in do_anonymous_page()
3102 struct vm_area_struct *vma = vmf->vma; in __do_fault() local
3121 vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm); in __do_fault()
3127 ret = vma->vm_ops->fault(vmf); in __do_fault()
3161 struct vm_area_struct *vma = vmf->vma; in pte_alloc_one_map() local
3166 vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd); in pte_alloc_one_map()
3172 mm_inc_nr_ptes(vma->vm_mm); in pte_alloc_one_map()
3173 pmd_populate(vma->vm_mm, vmf->pmd, vmf->prealloc_pte); in pte_alloc_one_map()
3176 } else if (unlikely(pte_alloc(vma->vm_mm, vmf->pmd))) { in pte_alloc_one_map()
3203 vmf->pte = pte_offset_map_lock(vma->vm_mm, vmf->pmd, vmf->address, in pte_alloc_one_map()
3211 struct vm_area_struct *vma = vmf->vma; in deposit_prealloc_pte() local
3213 pgtable_trans_huge_deposit(vma->vm_mm, vmf->pmd, vmf->prealloc_pte); in deposit_prealloc_pte()
3218 mm_inc_nr_ptes(vma->vm_mm); in deposit_prealloc_pte()
3224 struct vm_area_struct *vma = vmf->vma; in do_set_pmd() local
3231 if (!transhuge_vma_suitable(vma, haddr)) in do_set_pmd()
3242 vmf->prealloc_pte = pte_alloc_one(vma->vm_mm); in do_set_pmd()
3248 vmf->ptl = pmd_lock(vma->vm_mm, vmf->pmd); in do_set_pmd()
3253 flush_icache_page(vma, page + i); in do_set_pmd()
3255 entry = mk_huge_pmd(page, vma->vm_page_prot); in do_set_pmd()
3257 entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma); in do_set_pmd()
3259 add_mm_counter(vma->vm_mm, mm_counter_file(page), HPAGE_PMD_NR); in do_set_pmd()
3267 set_pmd_at(vma->vm_mm, haddr, vmf->pmd, entry); in do_set_pmd()
3269 update_mmu_cache_pmd(vma, haddr, vmf->pmd); in do_set_pmd()
3305 struct vm_area_struct *vma = vmf->vma; in alloc_set_pte() local
3330 flush_icache_page(vma, page); in alloc_set_pte()
3331 entry = mk_pte(page, vma->vm_page_prot); in alloc_set_pte()
3333 entry = maybe_mkwrite(pte_mkdirty(entry), vma); in alloc_set_pte()
3335 if (write && !(vma->vm_flags & VM_SHARED)) { in alloc_set_pte()
3336 inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES); in alloc_set_pte()
3337 page_add_new_anon_rmap(page, vma, vmf->address, false); in alloc_set_pte()
3339 lru_cache_add_active_or_unevictable(page, vma); in alloc_set_pte()
3341 inc_mm_counter_fast(vma->vm_mm, mm_counter_file(page)); in alloc_set_pte()
3344 set_pte_at(vma->vm_mm, vmf->address, vmf->pte, entry); in alloc_set_pte()
3347 update_mmu_cache(vma, vmf->address, vmf->pte); in alloc_set_pte()
3375 !(vmf->vma->vm_flags & VM_SHARED)) in finish_fault()
3384 if (!(vmf->vma->vm_flags & VM_SHARED)) in finish_fault()
3385 ret = check_stable_address_space(vmf->vma->vm_mm); in finish_fault()
3464 vmf->address = max(address & mask, vmf->vma->vm_start); in do_fault_around()
3475 end_pgoff = min3(end_pgoff, vma_pages(vmf->vma) + vmf->vma->vm_pgoff - 1, in do_fault_around()
3479 vmf->prealloc_pte = pte_alloc_one(vmf->vma->vm_mm); in do_fault_around()
3485 vmf->vma->vm_ops->map_pages(vmf, start_pgoff, end_pgoff); in do_fault_around()
3510 struct vm_area_struct *vma = vmf->vma; in do_read_fault() local
3518 if (vma->vm_ops->map_pages && fault_around_bytes >> PAGE_SHIFT > 1) { in do_read_fault()
3537 struct vm_area_struct *vma = vmf->vma; in do_cow_fault() local
3540 if (unlikely(anon_vma_prepare(vma))) in do_cow_fault()
3543 vmf->cow_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vmf->address); in do_cow_fault()
3547 if (mem_cgroup_try_charge_delay(vmf->cow_page, vma->vm_mm, GFP_KERNEL, in do_cow_fault()
3559 copy_user_highpage(vmf->cow_page, vmf->page, vmf->address, vma); in do_cow_fault()
3576 struct vm_area_struct *vma = vmf->vma; in do_shared_fault() local
3587 if (vma->vm_ops->page_mkwrite) { in do_shared_fault()
3619 struct vm_area_struct *vma = vmf->vma; in do_fault() local
3620 struct mm_struct *vm_mm = vma->vm_mm; in do_fault()
3626 if (!vma->vm_ops->fault) { in do_fault()
3634 vmf->pte = pte_offset_map_lock(vmf->vma->vm_mm, in do_fault()
3654 else if (!(vma->vm_flags & VM_SHARED)) in do_fault()
3667 static int numa_migrate_prep(struct page *page, struct vm_area_struct *vma, in numa_migrate_prep() argument
3679 return mpol_misplaced(page, vma, addr); in numa_migrate_prep()
3684 struct vm_area_struct *vma = vmf->vma; in do_numa_page() local
3699 vmf->ptl = pte_lockptr(vma->vm_mm, vmf->pmd); in do_numa_page()
3710 old_pte = ptep_modify_prot_start(vma, vmf->address, vmf->pte); in do_numa_page()
3711 pte = pte_modify(old_pte, vma->vm_page_prot); in do_numa_page()
3715 ptep_modify_prot_commit(vma, vmf->address, vmf->pte, old_pte, pte); in do_numa_page()
3716 update_mmu_cache(vma, vmf->address, vmf->pte); in do_numa_page()
3718 page = vm_normal_page(vma, vmf->address, pte); in do_numa_page()
3745 if (page_mapcount(page) > 1 && (vma->vm_flags & VM_SHARED)) in do_numa_page()
3750 target_nid = numa_migrate_prep(page, vma, vmf->address, page_nid, in do_numa_page()
3759 migrated = migrate_misplaced_page(page, vma, target_nid); in do_numa_page()
3774 if (vma_is_anonymous(vmf->vma)) in create_huge_pmd()
3776 if (vmf->vma->vm_ops->huge_fault) in create_huge_pmd()
3777 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PMD); in create_huge_pmd()
3784 if (vma_is_anonymous(vmf->vma)) in wp_huge_pmd()
3786 if (vmf->vma->vm_ops->huge_fault) in wp_huge_pmd()
3787 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PMD); in wp_huge_pmd()
3790 VM_BUG_ON_VMA(vmf->vma->vm_flags & VM_SHARED, vmf->vma); in wp_huge_pmd()
3791 __split_huge_pmd(vmf->vma, vmf->pmd, vmf->address, false, NULL); in wp_huge_pmd()
3796 static inline bool vma_is_accessible(struct vm_area_struct *vma) in vma_is_accessible() argument
3798 return vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE); in vma_is_accessible()
3805 if (vma_is_anonymous(vmf->vma)) in create_huge_pud()
3807 if (vmf->vma->vm_ops->huge_fault) in create_huge_pud()
3808 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PUD); in create_huge_pud()
3817 if (vma_is_anonymous(vmf->vma)) in wp_huge_pud()
3819 if (vmf->vma->vm_ops->huge_fault) in wp_huge_pud()
3820 return vmf->vma->vm_ops->huge_fault(vmf, PE_SIZE_PUD); in wp_huge_pud()
3881 if (vma_is_anonymous(vmf->vma)) in handle_pte_fault()
3890 if (pte_protnone(vmf->orig_pte) && vma_is_accessible(vmf->vma)) in handle_pte_fault()
3893 vmf->ptl = pte_lockptr(vmf->vma->vm_mm, vmf->pmd); in handle_pte_fault()
3904 if (ptep_set_access_flags(vmf->vma, vmf->address, vmf->pte, entry, in handle_pte_fault()
3906 update_mmu_cache(vmf->vma, vmf->address, vmf->pte); in handle_pte_fault()
3915 flush_tlb_fix_spurious_fault(vmf->vma, vmf->address); in handle_pte_fault()
3928 static vm_fault_t __handle_mm_fault(struct vm_area_struct *vma, in __handle_mm_fault() argument
3932 .vma = vma, in __handle_mm_fault()
3935 .pgoff = linear_page_index(vma, address), in __handle_mm_fault()
3936 .gfp_mask = __get_fault_gfp_mask(vma), in __handle_mm_fault()
3939 struct mm_struct *mm = vma->vm_mm; in __handle_mm_fault()
3952 if (pud_none(*vmf.pud) && __transparent_hugepage_enabled(vma)) { in __handle_mm_fault()
3978 if (pmd_none(*vmf.pmd) && __transparent_hugepage_enabled(vma)) { in __handle_mm_fault()
3994 if (pmd_protnone(orig_pmd) && vma_is_accessible(vma)) in __handle_mm_fault()
4017 vm_fault_t handle_mm_fault(struct vm_area_struct *vma, unsigned long address, in handle_mm_fault() argument
4025 count_memcg_event_mm(vma->vm_mm, PGFAULT); in handle_mm_fault()
4030 if (!arch_vma_access_permitted(vma, flags & FAULT_FLAG_WRITE, in handle_mm_fault()
4042 if (unlikely(is_vm_hugetlb_page(vma))) in handle_mm_fault()
4043 ret = hugetlb_fault(vma->vm_mm, vma, address, flags); in handle_mm_fault()
4045 ret = __handle_mm_fault(vma, address, flags); in handle_mm_fault()
4254 int follow_pfn(struct vm_area_struct *vma, unsigned long address, in follow_pfn() argument
4261 if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) in follow_pfn()
4264 ret = follow_pte(vma->vm_mm, address, &ptep, &ptl); in follow_pfn()
4274 int follow_phys(struct vm_area_struct *vma, in follow_phys() argument
4282 if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) in follow_phys()
4285 if (follow_pte(vma->vm_mm, address, &ptep, &ptl)) in follow_phys()
4302 int generic_access_phys(struct vm_area_struct *vma, unsigned long addr, in generic_access_phys() argument
4310 if (follow_phys(vma, addr, write, &prot, &phys_addr)) in generic_access_phys()
4335 struct vm_area_struct *vma; in __access_remote_vm() local
4349 gup_flags, &page, &vma, NULL); in __access_remote_vm()
4358 vma = find_vma(mm, addr); in __access_remote_vm()
4359 if (!vma || vma->vm_start > addr) in __access_remote_vm()
4361 if (vma->vm_ops && vma->vm_ops->access) in __access_remote_vm()
4362 ret = vma->vm_ops->access(vma, addr, buf, in __access_remote_vm()
4376 copy_to_user_page(vma, page, addr, in __access_remote_vm()
4380 copy_from_user_page(vma, page, addr, in __access_remote_vm()
4442 struct vm_area_struct *vma; in print_vma_addr() local
4450 vma = find_vma(mm, ip); in print_vma_addr()
4451 if (vma && vma->vm_file) { in print_vma_addr()
4452 struct file *f = vma->vm_file; in print_vma_addr()
4461 vma->vm_start, in print_vma_addr()
4462 vma->vm_end - vma->vm_start); in print_vma_addr()
4581 struct vm_area_struct *vma, in copy_user_gigantic_page() argument
4590 copy_user_highpage(dst, src, addr + i*PAGE_SIZE, vma); in copy_user_gigantic_page()
4601 struct vm_area_struct *vma; member
4609 addr, copy_arg->vma); in copy_subpage()
4613 unsigned long addr_hint, struct vm_area_struct *vma, in copy_user_huge_page() argument
4621 .vma = vma, in copy_user_huge_page()
4625 copy_user_gigantic_page(dst, src, addr, vma, in copy_user_huge_page()