内核编程--task struct

查找线程
 

    struct pid *pid;
    int level = 4090;
    struct task_struct *task;

    pid = find_vpid(level);
    task = pid_task(pid, PIDTYPE_PID);

 

遍历所有进程

    for_each_process(task) {
        printk(KERN_ERR "comm=%s  pid=%d \n", task->comm, task->pid;
    }

 

遍历当前进程的所有子进程

struct task_struct *task;
struct list_head *list;

list_for_each(list,&current->children)
{
    task=list_entry(list,structtask_struct,sibling);
}

遍历进程下所有线程

    struct task_struct *task, *taskori = &current->tasks;
    rcu_read_lock();
    task = taskori;
    do {
        printk(KERN_ERR "taskname=%s pid=%d gid=%d\n", task->comm, task->pid, task->tgid);
    } while_each_thread(taskori, task);
    rcu_read_unlock();

参考连接：https://blog.youkuaiyun.com/CrazyHeroZK/article/details/87361308