Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\ring_buffer.c Create Date:2022-07-28 11:54:47
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_disable_cpu - stop all writes into the cpu_buffer*@buffer: The ring buffer to stop writes to.*@cpu: The CPU buffer to stop* This prevents all writes to the buffer. Any attempt to write* to the buffer after this will fail and return NULL.

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

Type:void

Parameter:

TypeParameterName
struct ring_buffer *buffer
intcpu
3302  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
3305  cpu_buffer = buffers[cpu]
3306  atomic_inc( & record_disabled)
Caller
NameDescribe
tracing_cpumask_write