函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events_filter.c Create Date:2022-07-27 13:33:02
Last Modify:2022-05-22 20:19:57 Copyright©Brick
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函数名称：print_subsystem_event_filter

函数原型：void print_subsystem_event_filter(struct event_subsystem *system, struct trace_seq *s)

返回类型：void

参数：

类型参数名称
struct event_subsystem *system
struct trace_seq *s
997  mutex_lock( & event_mutex)
998  filter等于filter
999  如果filter且filter_string则race_seq_printf - sequence printing of trace information*@s: trace sequence descriptor*@fmt: printf format string* The tracer may use either sequence operations or its own* copy to user routines
1001  否则race_seq_puts - trace sequence printing of simple string*@s: trace sequence descriptor*@str: simple string to record* The tracer may use either the sequence operations or its own* copy to user routines
1003  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
subsystem_filter_read