函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:04:14
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_reset_cpu

函数原型：static void tracing_reset_cpu(struct trace_buffer *buf, int cpu)

返回类型：void

参数：

类型参数名称
struct trace_buffer *buf
intcpu
1969  buffer等于buffer
1971  如果非buffer则返回
1974  g_buffer_record_disable - stop all writes into the buffer*@buffer: The ring buffer to stop writes to.* This prevents all writes to the buffer. Any attempt to write* to the buffer after this will fail and return NULL.
1977  Wait for a grace period to elapse. But it is illegal to invoke* synchronize_rcu() from within an RCU read-side critical section.* Therefore, any legal call to synchronize_rcu() is a quiescent
1978  g_buffer_reset_cpu - reset a ring buffer per CPU buffer*@buffer: The ring buffer to reset a per cpu buffer of*@cpu: The CPU buffer to be reset
1980  g_buffer_record_enable - enable writes to the buffer*@buffer: The ring buffer to enable writes* Note, multiple disables will need the same number of enables* to truly enable the writing (much like preempt_disable).
调用者
名称描述
tracing_open