1267 		if (ctx->parent_ctx)  in put_ctx()
1268 			put_ctx(ctx->parent_ctx);  in put_ctx()
1386 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1390 	if (parent_ctx)  in unclone_ctx()
1391 		ctx->parent_ctx = NULL;  in unclone_ctx()
1394 	return parent_ctx;  in unclone_ctx()
3288 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
3292 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
3299 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
3394 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
3395 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
4955 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_release_kernel()
5245 	WARN_ON_ONCE(event->ctx->parent_ctx);  in __perf_read()
5331 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
6106 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap()
11949 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
12110 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
12284 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in perf_event_exit_event()
12520 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
12634 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
12642 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
12652 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
12677 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
12697 		child_ctx = alloc_perf_context(parent_ctx->pmu, child);  in inherit_task_group()
12704 	ret = inherit_group(event, parent, parent_ctx,  in inherit_task_group()
12718 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
12733 	parent_ctx = perf_pin_task_context(parent, ctxn);  in perf_event_init_context()
12734 	if (!parent_ctx)  in perf_event_init_context()
12748 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
12754 	perf_event_groups_for_each(event, &parent_ctx->pinned_groups) {  in perf_event_init_context()
12755 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
12766 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
12767 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
12768 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
12770 	perf_event_groups_for_each(event, &parent_ctx->flexible_groups) {  in perf_event_init_context()
12771 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
12777 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
12778 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
12790 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
12792 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
12793 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
12795 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
12796 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
12798 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
12801 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
12803 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
12805 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
12806 	put_ctx(parent_ctx);  in perf_event_init_context()