Function report |
Source Code:kernel\events\core.c |
Create Date:2022-07-28 13:32:34 |
Last Modify:2022-05-20 07:50:19 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:perf_group_detach
Proto:static void perf_group_detach(struct perf_event *event)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
struct perf_event * | event |
1994 | lockdep_assert_held( & Protect the states of the events in the list,* nr_active, and the list:) |
1999 | If Not (attach_state & PERF_ATTACH_GROUP) Then Return |
2002 | attach_state &= ~PERF_ATTACH_GROUP |
2004 | perf_put_aux_event(event) |
2009 | If group_leader != event Then |
2011 | nr_siblings-- |
2012 | Go to out |
2022 | group_leader = sibling |
2026 | group_caps = group_caps |
2028 | If Not 'empty' nodes are nodes that are known not to be inserted in an rbtree ( & group_node) Then |
2031 | If state == PERF_EVENT_STATE_ACTIVE Then |
2039 | WARN_ON_ONCE(ctx != ctx) |
2042 | out : |
Name | Describe |
---|---|
__perf_remove_from_context | Cross CPU call to remove a performance event* We disable the event on the hardware level first. After that we* remove it from the context list. |
perf_remove_from_context | Remove the event from a task's (or a CPU's) list of events.* If event->ctx is a cloned context, callers must make sure that* every task struct that event->ctx->task could possibly point to* remains valid. This is OK when called from perf_release since |
perf_event_exit_event | |
perf_free_event |
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