55     struct List *list = &dentry->subdirs_list;  in rootfs_readdir()  local
59         list = list_next(list);  in rootfs_readdir()
60         if (list == &dentry->subdirs_list) // 找完了  in rootfs_readdir()
68 … struct vfs_dir_entry_t *target_dent = container_of(list, struct vfs_dir_entry_t, child_node_list);  in rootfs_readdir()
117         struct List *list = &rootfs_sb.root->subdirs_list;  in rootfs_add_dir()  local
118         while (list_next(list) != &rootfs_sb.root->subdirs_list)  in rootfs_add_dir()
120             list = list_next(list);  in rootfs_add_dir()
121 …         struct vfs_dir_entry_t *tmp = container_of(list, struct vfs_dir_entry_t, child_node_list);  in rootfs_add_dir()
176     struct List *list = &rootfs_sb.root->subdirs_list;  in rootfs_migrate()  local
177     if (unlikely(list_empty(list)))  in rootfs_migrate()
179     list = list_next(list);  in rootfs_migrate()
180     while (list != &rootfs_sb.root->subdirs_list)  in rootfs_migrate()
183         struct vfs_dir_entry_t *tmp = container_of(list, struct vfs_dir_entry_t, child_node_list);  in rootfs_migrate()
186             list = list_next(list); // 获取下一个列表结点（不然的话下面的几行代码就覆盖掉了正确的值了）  in rootfs_migrate()
194             list = list_next(list); // 不迁移空的dentry，直接释放他们  in rootfs_migrate()