Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_irqsoff.c Create Date:2022-07-28 12:09:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:We are only interested in hardirq on/off events:

Proto:void tracer_hardirqs_on(unsigned long a0, unsigned long a1)

Type:void

Parameter:

TypeParameterName
unsigned longa0
unsigned longa1
612  pc = We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt.
614  If Not preempt_trace(pc) && irq_trace() Then stop_critical_timing(a0, a1, pc)