62 		struct vm_area_struct *vma, struct vm_area_struct *prev,
382 	unsigned long prev = 0, pend = 0;  in browse_rb()  local
387 		if (vma->vm_start < prev) {  in browse_rb()
389 				  vma->vm_start, prev);  in browse_rb()
410 		prev = vma->vm_start;  in browse_rb()
661 	struct vm_area_struct *prev, struct rb_node **rb_link,  in __vma_link()  argument
664 	__vma_link_list(mm, vma, prev, rb_parent);  in __vma_link()
669 			struct vm_area_struct *prev, struct rb_node **rb_link,  in vma_link()  argument
679 	__vma_link(mm, vma, prev, rb_link, rb_parent);  in vma_link()
695 	struct vm_area_struct *prev;  in __insert_vm_struct()  local
699 			   &prev, &rb_link, &rb_parent))  in __insert_vm_struct()
701 	__vma_link(mm, vma, prev, rb_link, rb_parent);  in __insert_vm_struct()
707 		struct vm_area_struct *prev)  in __vma_unlink()  argument
712 	prev->vm_next = next = vma->vm_next;  in __vma_unlink()
714 		next->vm_prev = prev;  in __vma_unlink()
1041 			struct vm_area_struct *prev, unsigned long addr,  in vma_merge()  argument
1058 	if (prev)  in vma_merge()
1059 		next = prev->vm_next;  in vma_merge()
1069 	if (prev && prev->vm_end == addr &&  in vma_merge()
1070 			mpol_equal(vma_policy(prev), policy) &&  in vma_merge()
1071 			can_vma_merge_after(prev, vm_flags,  in vma_merge()
1083 				is_mergeable_anon_vma(prev->anon_vma,  in vma_merge()
1086 			err = vma_adjust(prev, prev->vm_start,  in vma_merge()
1087 				next->vm_end, prev->vm_pgoff, NULL);  in vma_merge()
1089 			err = vma_adjust(prev, prev->vm_start,  in vma_merge()
1090 				end, prev->vm_pgoff, NULL);  in vma_merge()
1093 		khugepaged_enter_vma_merge(prev, vm_flags);  in vma_merge()
1094 		return prev;  in vma_merge()
1105 		if (prev && addr < prev->vm_end)	/* case 4 */  in vma_merge()
1106 			err = vma_adjust(prev, prev->vm_start,  in vma_merge()
1107 				addr, prev->vm_pgoff, NULL);  in vma_merge()
1545 	struct vm_area_struct *vma, *prev;  in mmap_region()  local
1568 	while (find_vma_links(mm, addr, addr + len, &prev, &rb_link,  in mmap_region()
1587 	vma = vma_merge(mm, prev, addr, addr + len, vm_flags,  in mmap_region()
1650 	vma_link(mm, vma, prev, rb_link, rb_parent);  in mmap_region()
1692 	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);  in mmap_region()
1776 			struct rb_node *prev = &vma->vm_rb;  in unmapped_area()  local
1777 			if (!rb_parent(prev))  in unmapped_area()
1779 			vma = rb_entry(rb_parent(prev),  in unmapped_area()
1781 			if (prev == vma->vm_rb.rb_left) {  in unmapped_area()
1879 			struct rb_node *prev = &vma->vm_rb;  in unmapped_area_topdown()  local
1880 			if (!rb_parent(prev))  in unmapped_area_topdown()
1882 			vma = rb_entry(rb_parent(prev),  in unmapped_area_topdown()
1884 			if (prev == vma->vm_rb.rb_right) {  in unmapped_area_topdown()
2320 	struct vm_area_struct *vma, *prev;  in find_extend_vma()  local
2323 	vma = find_vma_prev(mm, addr, &prev);  in find_extend_vma()
2326 	if (!prev || expand_stack(prev, addr))  in find_extend_vma()
2328 	if (prev->vm_flags & VM_LOCKED)  in find_extend_vma()
2329 		populate_vma_page_range(prev, addr, prev->vm_end, NULL);  in find_extend_vma()
2330 	return prev;  in find_extend_vma()
2335 	struct vm_area_struct *prev;  in expand_stack()  local
2338 	prev = vma->vm_prev;  in expand_stack()
2339 	if (prev && prev->vm_end == address) {  in expand_stack()
2340 		if (!(prev->vm_flags & VM_GROWSDOWN))  in expand_stack()
2401 		struct vm_area_struct *vma, struct vm_area_struct *prev,  in unmap_region()  argument
2404 	struct vm_area_struct *next = prev ? prev->vm_next : mm->mmap;  in unmap_region()
2411 	free_pgtables(&tlb, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS,  in unmap_region()
2422 	struct vm_area_struct *prev, unsigned long end)  in detach_vmas_to_be_unmapped()  argument
2427 	insertion_point = (prev ? &prev->vm_next : &mm->mmap);  in detach_vmas_to_be_unmapped()
2437 		vma->vm_prev = prev;  in detach_vmas_to_be_unmapped()
2440 		mm->highest_vm_end = prev ? prev->vm_end : 0;  in detach_vmas_to_be_unmapped()
2535 	struct vm_area_struct *vma, *prev, *last;  in do_munmap()  local
2548 	prev = vma->vm_prev;  in do_munmap()
2577 		prev = vma;  in do_munmap()
2587 	vma = prev ? prev->vm_next : mm->mmap;  in do_munmap()
2606 	detach_vmas_to_be_unmapped(mm, vma, prev, end);  in do_munmap()
2607 	unmap_region(mm, vma, prev, start, end);  in do_munmap()
2746 	struct vm_area_struct *vma, *prev;  in do_brk()  local
2775 	while (find_vma_links(mm, addr, addr + len, &prev, &rb_link,  in do_brk()
2792 	vma = vma_merge(mm, prev, addr, addr + len, flags,  in do_brk()
2813 	vma_link(mm, vma, prev, rb_link, rb_parent);  in do_brk()
2892 	struct vm_area_struct *prev;  in insert_vm_struct()  local
2896 			   &prev, &rb_link, &rb_parent))  in insert_vm_struct()
2919 	vma_link(mm, vma, prev, rb_link, rb_parent);  in insert_vm_struct()
2934 	struct vm_area_struct *new_vma, *prev;  in copy_vma()  local
2947 	if (find_vma_links(mm, addr, addr + len, &prev, &rb_link, &rb_parent))  in copy_vma()
2949 	new_vma = vma_merge(mm, prev, addr, addr + len, vma->vm_flags,  in copy_vma()
2991 		vma_link(mm, new_vma, prev, rb_link, rb_parent);  in copy_vma()