各位大哥能不能帮看一下下面的内核代码是做什么的?

victorxu79

各位大哥能不能帮看一下下面的内核代码是做什么的?(include/linux/list.h)
static __inline__ void list_splice(struct list_head *list, struct list_head *head)
{
struct list_head *first = list->;next;
if (first != list) {
struct list_head *last = list->;prev;     struct list_head *at = head->;next;
first->;prev = head;
head->;next = first;
last->;next = at;
at->;prev = last;
}
}

struct list_head {                  
        struct list_head *next,*prev;
}

zuibird

把l双向链表list, head连接建立一个以list为根，head为第一个叶节点的二叉树