901 		if (ctx->parent_ctx)  in put_ctx()
902 			put_ctx(ctx->parent_ctx);  in put_ctx()
1015 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1019 	if (parent_ctx)  in unclone_ctx()
1020 		ctx->parent_ctx = NULL;  in unclone_ctx()
1023 	return parent_ctx;  in unclone_ctx()
2429 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
2433 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
2440 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
2541 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
2542 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
3704 	WARN_ON_ONCE(ctx->parent_ctx);  in put_event()
3891 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_read_hw()
3955 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
4660 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap()
8145 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
8280 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
8391 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in sync_child_event()
8610 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
8685 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in inherit_event()
8695 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
8703 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
8708 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
8718 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
8739 		child_ctx = alloc_perf_context(parent_ctx->pmu, child);  in inherit_task_group()
8746 	ret = inherit_group(event, parent, parent_ctx,  in inherit_task_group()
8760 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
8775 	parent_ctx = perf_pin_task_context(parent, ctxn);  in perf_event_init_context()
8776 	if (!parent_ctx)  in perf_event_init_context()
8790 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
8796 	list_for_each_entry(event, &parent_ctx->pinned_groups, group_entry) {  in perf_event_init_context()
8797 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
8808 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
8809 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
8810 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
8812 	list_for_each_entry(event, &parent_ctx->flexible_groups, group_entry) {  in perf_event_init_context()
8813 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
8819 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
8820 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
8832 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
8834 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
8835 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
8837 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
8838 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
8840 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
8843 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
8844 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
8846 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
8847 	put_ctx(parent_ctx);  in perf_event_init_context()