Linux kernel里面获取进程PID函数

task_pid_nr(current);
task_pid_nr_ns(current);

current是个全局的，可以点task_struct去看下 这个结构体的各个成员代表的意思

static inline pid_t task_pid_nr(struct task_struct *tsk)
{
return tsk->pid;
}

static inline pid_t task_pid_nr_ns(struct task_struct *tsk, struct pid_namespace *ns)
{
return __task_pid_nr_ns(tsk, PIDTYPE_PID, ns);
}

标签：kernel,task,struct,PID,pid,Linux,nr,ns,tsk
来源： https://www.cnblogs.com/kaosine/p/15477728.html