函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:58:46
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：perf_swevent_overflow

函数原型：static void perf_swevent_overflow(struct perf_event *event, u64 overflow, struct perf_sample_data *data, struct pt_regs *regs)

返回类型：void

参数：

类型参数名称
struct perf_event *event
u64overflow
struct perf_sample_data *data
struct pt_regs *regs
8502  hwc等于hw
8503  throttle等于0
8505  如果非overflow则overflow等于We directly increment event->count and keep a second value in* is kept in the range [-sample_period, 0] so that we can use the* sign as trigger.
8508  如果interrupts恒等于MAX_INTERRUPTS则返回
8511  以overflow循环
8512  如果Generic event overflow handling, sampling.则
8518  退出
8520  throttle等于1
调用者
名称描述
perf_swevent_event