887 		if (ctx->parent_ctx)  in put_ctx()
888 			put_ctx(ctx->parent_ctx);  in put_ctx()
1002 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1006 	if (parent_ctx)  in unclone_ctx()
1007 		ctx->parent_ctx = NULL;  in unclone_ctx()
1010 	return parent_ctx;  in unclone_ctx()
2448 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
2452 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
2459 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
2560 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
2561 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
3819 	WARN_ON_ONCE(ctx->parent_ctx);  in put_event()
4050 	WARN_ON_ONCE(event->ctx->parent_ctx);  in __perf_read()
4114 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
4826 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap()
8491 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
8658 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
8769 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in sync_child_event()
9022 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
9097 	WARN_ON_ONCE(parent_event->ctx->parent_ctx);  in inherit_event()
9107 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
9115 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
9120 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
9130 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
9151 		child_ctx = alloc_perf_context(parent_ctx->pmu, child);  in inherit_task_group()
9158 	ret = inherit_group(event, parent, parent_ctx,  in inherit_task_group()
9172 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
9187 	parent_ctx = perf_pin_task_context(parent, ctxn);  in perf_event_init_context()
9188 	if (!parent_ctx)  in perf_event_init_context()
9202 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
9208 	list_for_each_entry(event, &parent_ctx->pinned_groups, group_entry) {  in perf_event_init_context()
9209 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
9220 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
9221 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
9222 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
9224 	list_for_each_entry(event, &parent_ctx->flexible_groups, group_entry) {  in perf_event_init_context()
9225 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
9231 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
9232 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
9244 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
9246 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
9247 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
9249 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
9250 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
9252 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
9255 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
9256 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
9258 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
9259 	put_ctx(parent_ctx);  in perf_event_init_context()