unclone

函数名称：This must be done under the ctx->lock, such as to serialize against* context_equiv(), therefore we cannot call put_ctx() since that might end up* calling scheduler related locks and ctx->lock nests inside those.

函数原型：static __must_check struct perf_event_context *unclone_ctx(struct perf_event_context *ctx)

返回类型：struct perf_event_context

参数：

类型	参数	名称
struct perf_event_context *	ctx

1310

parent_ctx等于These fields let us detect when two contexts have both* been cloned (inherited) from a common ancestor.

1312

lockdep_assert_held( & Protect the states of the events in the list,* nr_active, and the list:)

1314

如果parent_ctx则These fields let us detect when two contexts have both* been cloned (inherited) from a common ancestor. = NULL

1316

generation自加

1318

返回:parent_ctx

**调用者**
名称	描述
perf_event_enable_on_exec	Enable all of a task's events that have been marked enable-on-exec.* This expects task == current.
find_get_context	Returns a matching context with refcount and pincount.
perf_event_exit_task_context

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