函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree.c Create Date:2022-07-27 11:27:18
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Helper function for rcu_barrier() tracing. If tracing is disabled,* the compiler is expected to optimize this away.

函数原型：static void rcu_barrier_trace(const char *s, int cpu, unsigned long done)

返回类型：void

参数：

类型参数名称
const char *s
intcpu
unsigned longdone
2869  Tracepoint for rcu_barrier() execution. The string "s" describes* the rcu_barrier phase:* "Begin": rcu_barrier() started.* "EarlyExit": rcu_barrier() piggybacked, thus early exit.* "Inc1": rcu_barrier() piggyback check counter incremented.
调用者
名称描述
rcu_barrier_callbackRCU callback function for rcu_barrier(). If we are last, wake* up the task executing rcu_barrier().
rcu_barrier_funcCalled with preemption disabled, and from cross-cpu IRQ context.
rcu_barrier_barrier - Wait until all in-flight call_rcu() callbacks complete