函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\exit.c Create Date:2022-07-27 10:02:05
Last Modify:2020-03-17 11:17:32 Copyright©Brick
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函数名称：rcuwait_wake_up

函数原型：void rcuwait_wake_up(struct rcuwait *w)

返回类型：void

参数：

类型参数名称
struct rcuwait *w
241  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
254  smp_mb()
256  task等于cu_dereference() - fetch RCU-protected pointer for dereferencing*@p: The pointer to read, prior to dereferencing* This is a simple wrapper around rcu_dereference_check().(task)
257  如果task则唤醒中断线程
259  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
调用者
名称描述
__percpu_up_read