50 void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma, struct vm_area_struct *prev)  in __vma_link_list()  argument
53     vma->vm_prev = prev;  in __vma_link_list()
54     if (prev) // 若指定了前一个结点，则直接连接  in __vma_link_list()
56         next = prev->vm_next;  in __vma_link_list()
57         prev->vm_next = vma;  in __vma_link_list()
79     struct vm_area_struct *prev, *next;  in __vma_unlink_list()  local
81     prev = vma->vm_prev;  in __vma_unlink_list()
82     if (prev)  in __vma_unlink_list()
83         prev->vm_next = next;  in __vma_unlink_list()
88         next->vm_prev = prev;  in __vma_unlink_list()
124     struct vm_area_struct *prev;  in vma_insert()  local
126     prev = vma_find(mm, vma->vm_start);  in vma_insert()
128     if (prev && prev->vm_start <= vma->vm_start && prev->vm_end >= vma->vm_end)  in vma_insert()
134 …else if (prev && ((vma->vm_start >= prev->vm_start && vma->vm_start <= prev->vm_end) || (prev->vm_…  in vma_insert()
137 …if ((!CROSS_2M_BOUND(vma->vm_start, prev->vm_start)) && (!CROSS_2M_BOUND(vma->vm_end, prev->vm_end…  in vma_insert()
142             prev->vm_start = (vma->vm_start < prev->vm_start )? vma->vm_start : prev->vm_start;  in vma_insert()
143             prev->vm_end = (vma->vm_end > prev->vm_end) ? vma->vm_end : prev->vm_end;  in vma_insert()
145             prev->page_offset = prev->vm_start - (prev->vm_start & PAGE_2M_MASK);  in vma_insert()
146 …v:vm_start = %018lx, vm_end = %018lx\n", vma->vm_start, vma->vm_end, prev->vm_start, prev->vm_end);  in vma_insert()
154     if (prev == NULL) // 要将当前vma插入到链表的尾部  in vma_insert()
163                 prev = ptr;  in vma_insert()
169         prev = prev->vm_prev;  in vma_insert()
170     __vma_link_list(mm, vma, prev);  in vma_insert()