函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\internal.h Create Date:2022-07-27 14:49:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：perf_aux_size

函数原型：static inline unsigned long perf_aux_size(struct ring_buffer *rb)

返回类型：unsigned long

参数：

类型参数名称
struct ring_buffer *rb
126  返回:aux_nr_pages左移PAGE_SHIFT determines the page size 位
调用者
名称描述
perf_prepare_sample_aux
perf_aux_output_beginThis is called before hardware starts writing to the AUX area to* obtain an output handle and make sure there's room in the buffer