函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_sched_switch.c Create Date:2022-07-27 13:15:08
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_start_sched_switch

函数原型：static void tracing_start_sched_switch(int ops)

返回类型：void

参数：

类型参数名称
intops
94  mutex_lock( & sched_register_mutex)
95  sched_register等于非sched_cmdline_ref且非sched_tgid_ref
98  当:ops恒等于RECORD_CMDLINE
99  sched_cmdline_ref自加
100  退出
102  当:ops恒等于RECORD_TGID
103  sched_tgid_ref自加
104  退出
107  如果sched_register且sched_cmdline_ref或sched_tgid_ref的值则tracing_sched_register()
109  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
调用者
名称描述
tracing_start_cmdline_record
tracing_start_tgid_record