perf_output_get

函数名称：We need to ensure a later event_id doesn't publish a head when a former* event isn't done writing. However since we need to deal with NMIs we* cannot fully serialize things.* We only publish the head (and generate a wakeup) when the outer-most

函数原型：static void perf_output_get_handle(struct perf_output_handle *handle)

返回类型：void

参数：

类型	参数	名称
struct perf_output_handle *	handle

rb等于rb

禁止抢占()

( * (volatile unsigned int * ) & nested writers )++

wakeup等于local_read( & wakeup stamp )

**调用者**
名称	描述
__perf_output_begin

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告