get_ctx

函数名称：get_ctx

函数原型：static void get_ctx(struct perf_event_context *ctx)

返回类型：void

参数：

类型	参数	名称
struct perf_event_context *	ctx

**调用者**
名称	描述
find_get_context	Returns a matching context with refcount and pincount.
perf_event_release_kernel	Kill an event dead; while event:refcount will preserve the event* object, it will not preserve its functionality. Once the last 'user'* gives up the object, we'll destroy the thing.
perf_pmu_migrate_context
inherit_event	Inherit an event from parent task to child task.* Returns:* - valid pointer on success* - NULL for orphaned events* - IS_ERR() on error
perf_event_init_context	Initialize the perf_event context in task_struct

函数逻辑报告