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    QUOTE:
     typedef struct foo {

struct foo *prev;
struct foo *next;

} foo_t;
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    list_head½á¹¹
    QUOTE:
     -----------struct list_head{}¼°³õʼ»¯ºê---------
struct list_head
{
struct list_head *next, *prev;
};
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    ÔÚLinuxÄÚºËÖеÄ˫ѭ»·Á´±íʵÏÖ·½Ê½Ï£º
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    2. ¿ÉÒÔ½«Á´±


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1. Two methods to construct the cluster of servers
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