stuct pid ☆阅读 include/ inux/pid. h中 “ What is struct pid? struct upid t Try to keep pid chain in the same cacheline as nr for find pid * int n struct pid namespace *ns struct hist node pid chain: struct pid a tomic t count k lists of tasks that use this pid */ struct hlist head tasks [PiDtYPE MAX]: struct rcu head rcu unsigned int level struct upid numbers [l]; static inline pid t pid nr(struct pid *pid pid t nr =0 if (pid nr= pid->numbe rs [o].nr; 2021/2/6 Linux操作系统分析 return nri2021/2/6 Linux操作系统分析 12/65 stuct pid ❖阅读include/linux/pid.h中 ➢“What is struct pid?