Linux内核等待队列唤醒函数问题，本人小白

Question

define wake_up_interruptible(x) __wake_up(x, TASK_INTERRUPTIBLE, 1, NULL)

define wake_up_interruptible_nr(x, nr) __wake_up(x, TASK_INTERRUPTIBLE, nr, NULL)

define wake_up_interruptible_all(x) __wake_up(x, TASK_INTERRUPTIBLE, 0, NULL)

define wake_up_interruptible_sync(x) __wake_up_sync((x), TASK_INTERRUPTIBLE, 1)

wake_up_interruptible_sync宏与wake_up_interruptible(x)的区别，本人小白