1269 		if (ctx->parent_ctx)  in put_ctx()
1270 			put_ctx(ctx->parent_ctx);  in put_ctx()
1388 	struct perf_event_context *parent_ctx = ctx->parent_ctx;  in unclone_ctx()  local
1392 	if (parent_ctx)  in unclone_ctx()
1393 		ctx->parent_ctx = NULL;  in unclone_ctx()
1396 	return parent_ctx;  in unclone_ctx()
3215 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_modify_attr()
3320 	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)  in context_equiv()
3324 	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)  in context_equiv()
3331 	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&  in context_equiv()
3426 	parent = rcu_dereference(ctx->parent_ctx);  in perf_event_context_sched_out()
3427 	next_parent = rcu_dereference(next_ctx->parent_ctx);  in perf_event_context_sched_out()
5104 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_release_kernel()
5394 	WARN_ON_ONCE(event->ctx->parent_ctx);  in __perf_read()
5480 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_event_for_each_child()
6269 	WARN_ON_ONCE(event->ctx->parent_ctx);  in perf_mmap()
12316 	WARN_ON_ONCE(ctx->parent_ctx);  in SYSCALL_DEFINE5()
12479 	WARN_ON_ONCE(ctx->parent_ctx);  in perf_event_create_kernel_counter()
12885 	      struct perf_event_context *parent_ctx,  in inherit_event()  argument
13000 	      struct perf_event_context *parent_ctx,  in inherit_group()  argument
13008 	leader = inherit_event(parent_event, parent, parent_ctx,  in inherit_group()
13018 		child_ctr = inherit_event(sub, parent, parent_ctx,  in inherit_group()
13043 		   struct perf_event_context *parent_ctx,  in inherit_task_group()  argument
13066 		child_ctx = alloc_perf_context(parent_ctx->pmu, child);  in inherit_task_group()
13073 	ret = inherit_group(event, parent, parent_ctx,  in inherit_task_group()
13088 	struct perf_event_context *child_ctx, *parent_ctx;  in perf_event_init_context()  local
13103 	parent_ctx = perf_pin_task_context(parent, ctxn);  in perf_event_init_context()
13104 	if (!parent_ctx)  in perf_event_init_context()
13118 	mutex_lock(&parent_ctx->mutex);  in perf_event_init_context()
13124 	perf_event_groups_for_each(event, &parent_ctx->pinned_groups) {  in perf_event_init_context()
13125 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
13137 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
13138 	parent_ctx->rotate_disable = 1;  in perf_event_init_context()
13139 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
13141 	perf_event_groups_for_each(event, &parent_ctx->flexible_groups) {  in perf_event_init_context()
13142 		ret = inherit_task_group(event, parent, parent_ctx,  in perf_event_init_context()
13149 	raw_spin_lock_irqsave(&parent_ctx->lock, flags);  in perf_event_init_context()
13150 	parent_ctx->rotate_disable = 0;  in perf_event_init_context()
13162 		cloned_ctx = parent_ctx->parent_ctx;  in perf_event_init_context()
13164 			child_ctx->parent_ctx = cloned_ctx;  in perf_event_init_context()
13165 			child_ctx->parent_gen = parent_ctx->parent_gen;  in perf_event_init_context()
13167 			child_ctx->parent_ctx = parent_ctx;  in perf_event_init_context()
13168 			child_ctx->parent_gen = parent_ctx->generation;  in perf_event_init_context()
13170 		get_ctx(child_ctx->parent_ctx);  in perf_event_init_context()
13173 	raw_spin_unlock_irqrestore(&parent_ctx->lock, flags);  in perf_event_init_context()
13175 	mutex_unlock(&parent_ctx->mutex);  in perf_event_init_context()
13177 	perf_unpin_context(parent_ctx);  in perf_event_init_context()
13178 	put_ctx(parent_ctx);  in perf_event_init_context()