1386 		if (ctx->parent_ctx)  in put_ctx()
1387 			put_ctx(ctx->parent_ctx);  in put_ctx()
1510 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1514 	if (parent_ctx)  in unclone_ctx()
1515 		ctx->parent_ctx = NULL;  in unclone_ctx()
1518 	return parent_ctx;  in unclone_ctx()
3503 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_modify_attr()
3668 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
3672 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
3679 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
3780 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
3781 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
5941 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_release_kernel()
6253 	WARN_ON_ONCE(event->ctx->parent_ctx);  in __perf_read()
6481 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
7281 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap_rb()
14101 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
14262 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
14706 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
14824 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
14832 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
14842 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
14869 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
14899 	ret = inherit_group(event, parent, parent_ctx, child, child_ctx);  in inherit_task_group()
14911 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
14926 	parent_ctx = perf_pin_task_context(parent);  in perf_event_init_context()
14927 	if (!parent_ctx)  in perf_event_init_context()
14941 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
14947 	perf_event_groups_for_each(event, &parent_ctx->pinned_groups) {  in perf_event_init_context()
14948 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
14959 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
14960 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
14961 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
14963 	perf_event_groups_for_each(event, &parent_ctx->flexible_groups) {  in perf_event_init_context()
14964 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
14970 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
14971 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
14983 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
14985 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
14986 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
14988 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
14989 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
14991 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
14994 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
14996 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
14998 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
14999 	put_ctx(parent_ctx);  in perf_event_init_context()