1181 		if (ctx->parent_ctx)  in put_ctx()
1182 			put_ctx(ctx->parent_ctx);  in put_ctx()
1300 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1304 	if (parent_ctx)  in unclone_ctx()
1305 		ctx->parent_ctx = NULL;  in unclone_ctx()
1308 	return parent_ctx;  in unclone_ctx()
3179 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_modify_attr()
3318 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
3322 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
3329 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
3466 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
3467 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
5301 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_release_kernel()
5618 	WARN_ON_ONCE(event->ctx->parent_ctx);  in __perf_read()
5704 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
6489 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap()
12637 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
12796 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
13237 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
13348 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
13356 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
13366 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
13393 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
13423 	ret = inherit_group(event, parent, parent_ctx, child, child_ctx);  in inherit_task_group()
13435 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
13450 	parent_ctx = perf_pin_task_context(parent);  in perf_event_init_context()
13451 	if (!parent_ctx)  in perf_event_init_context()
13465 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
13471 	perf_event_groups_for_each(event, &parent_ctx->pinned_groups) {  in perf_event_init_context()
13472 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
13483 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
13484 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
13485 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
13487 	perf_event_groups_for_each(event, &parent_ctx->flexible_groups) {  in perf_event_init_context()
13488 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
13494 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
13495 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
13507 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
13509 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
13510 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
13512 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
13513 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
13515 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
13518 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
13520 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
13522 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
13523 	put_ctx(parent_ctx);  in perf_event_init_context()