Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\ring_buffer.c Create Date:2022-07-28 11:54:48
Last Modify:2020-03-17 19:30:04 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:g_buffer_record_enable_cpu - enable writes to the buffer*@buffer: The ring buffer to enable writes*@cpu: The CPU to enable.* Note, multiple disables will need the same number of enables* to truly enable the writing (much like preempt_disable).

Proto:void ring_buffer_record_enable_cpu(struct ring_buffer *buffer, int cpu)

Type:void

Parameter:

TypeParameterName
struct ring_buffer *buffer
intcpu
3322  If Not pumask_test_cpu - test for a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@cpumask: the cpumask pointer* Returns 1 if @cpu is set in @cpumask, else returns 0 Then Return
3325  cpu_buffer = buffers[cpu]
3326  atomic_dec( & record_disabled)
Caller
NameDescribe
tracing_cpumask_write