255 static struct gcov_info *get_node_info(struct gcov_node *node)  in get_node_info()  argument
257 	if (node->num_loaded > 0)  in get_node_info()
258 		return node->loaded_info[0];  in get_node_info()
260 	return node->unloaded_info;  in get_node_info()
267 static struct gcov_info *get_accumulated_info(struct gcov_node *node)  in get_accumulated_info()  argument
272 	if (node->unloaded_info)  in get_accumulated_info()
273 		info = gcov_info_dup(node->unloaded_info);  in get_accumulated_info()
275 		info = gcov_info_dup(node->loaded_info[i++]);  in get_accumulated_info()
278 	for (; i < node->num_loaded; i++)  in get_accumulated_info()
279 		gcov_info_add(info, node->loaded_info[i]);  in get_accumulated_info()
290 	struct gcov_node *node = inode->i_private;  in gcov_seq_open()  local
302 	info = get_accumulated_info(node);  in gcov_seq_open()
350 	struct gcov_node *node;  in get_node_by_name()  local
353 	list_for_each_entry(node, &all_head, all) {  in get_node_by_name()
354 		info = get_node_info(node);  in get_node_by_name()
356 			return node;  in get_node_by_name()
365 static void reset_node(struct gcov_node *node)  in reset_node()  argument
369 	if (node->unloaded_info)  in reset_node()
370 		gcov_info_reset(node->unloaded_info);  in reset_node()
371 	for (i = 0; i < node->num_loaded; i++)  in reset_node()
372 		gcov_info_reset(node->loaded_info[i]);  in reset_node()
375 static void remove_node(struct gcov_node *node);
387 	struct gcov_node *node;  in gcov_seq_write()  local
392 	node = get_node_by_name(gcov_info_filename(info));  in gcov_seq_write()
393 	if (node) {  in gcov_seq_write()
395 		if (node->num_loaded == 0)  in gcov_seq_write()
396 			remove_node(node);  in gcov_seq_write()
398 			reset_node(node);  in gcov_seq_write()
476 static void add_links(struct gcov_node *node, struct dentry *parent)  in add_links()  argument
485 	node->links = kcalloc(num, sizeof(struct dentry *), GFP_KERNEL);  in add_links()
486 	if (!node->links)  in add_links()
490 				gcov_info_filename(get_node_info(node)),  in add_links()
497 		node->links[i] = debugfs_create_symlink(deskew(basename),  in add_links()
506 		debugfs_remove(node->links[i]);  in add_links()
507 	kfree(node->links);  in add_links()
508 	node->links = NULL;  in add_links()
520 static void init_node(struct gcov_node *node, struct gcov_info *info,  in init_node()  argument
523 	INIT_LIST_HEAD(&node->list);  in init_node()
524 	INIT_LIST_HEAD(&node->children);  in init_node()
525 	INIT_LIST_HEAD(&node->all);  in init_node()
526 	if (node->loaded_info) {  in init_node()
527 		node->loaded_info[0] = info;  in init_node()
528 		node->num_loaded = 1;  in init_node()
530 	node->parent = parent;  in init_node()
532 		strcpy(node->name, name);  in init_node()
542 	struct gcov_node *node;  in new_node()  local
544 	node = kzalloc(sizeof(struct gcov_node) + strlen(name) + 1, GFP_KERNEL);  in new_node()
545 	if (!node)  in new_node()
548 		node->loaded_info = kcalloc(1, sizeof(struct gcov_info *),  in new_node()
550 		if (!node->loaded_info)  in new_node()
553 	init_node(node, info, name, parent);  in new_node()
556 		node->dentry = debugfs_create_file(deskew(node->name), 0600,  in new_node()
557 					parent->dentry, node, &gcov_data_fops);  in new_node()
559 		node->dentry = debugfs_create_dir(node->name, parent->dentry);  in new_node()
561 		add_links(node, parent->dentry);  in new_node()
562 	list_add(&node->list, &parent->children);  in new_node()
563 	list_add(&node->all, &all_head);  in new_node()
565 	return node;  in new_node()
568 	kfree(node);  in new_node()
574 static void remove_links(struct gcov_node *node)  in remove_links()  argument
578 	if (!node->links)  in remove_links()
581 		debugfs_remove(node->links[i]);  in remove_links()
582 	kfree(node->links);  in remove_links()
583 	node->links = NULL;  in remove_links()
590 static void release_node(struct gcov_node *node)  in release_node()  argument
592 	list_del(&node->list);  in release_node()
593 	list_del(&node->all);  in release_node()
594 	debugfs_remove(node->dentry);  in release_node()
595 	remove_links(node);  in release_node()
596 	kfree(node->loaded_info);  in release_node()
597 	if (node->unloaded_info)  in release_node()
598 		gcov_info_free(node->unloaded_info);  in release_node()
599 	kfree(node);  in release_node()
603 static void remove_node(struct gcov_node *node)  in remove_node()  argument
607 	while ((node != &root_node) && list_empty(&node->children)) {  in remove_node()
608 		parent = node->parent;  in remove_node()
609 		release_node(node);  in remove_node()
610 		node = parent;  in remove_node()
621 	struct gcov_node *node;  in get_child_by_name()  local
623 	list_for_each_entry(node, &parent->children, list) {  in get_child_by_name()
624 		if (strcmp(node->name, name) == 0)  in get_child_by_name()
625 			return node;  in get_child_by_name()
638 	struct gcov_node *node;  in reset_write()  local
642 	list_for_each_entry(node, &all_head, all) {  in reset_write()
643 		if (node->num_loaded > 0)  in reset_write()
644 			reset_node(node);  in reset_write()
645 		else if (list_empty(&node->children)) {  in reset_write()
646 			remove_node(node);  in reset_write()
680 	struct gcov_node *node;  in add_node()  local
699 		node = get_child_by_name(parent, curr);  in add_node()
700 		if (!node) {  in add_node()
701 			node = new_node(parent, NULL, curr);  in add_node()
702 			if (!node)  in add_node()
705 		parent = node;  in add_node()
708 	node = new_node(parent, info, curr);  in add_node()
709 	if (!node)  in add_node()
724 static void add_info(struct gcov_node *node, struct gcov_info *info)  in add_info()  argument
727 	int num = node->num_loaded;  in add_info()
740 	memcpy(loaded_info, node->loaded_info,  in add_info()
749 		if (!gcov_info_is_compatible(node->unloaded_info, info)) {  in add_info()
753 			gcov_info_free(node->unloaded_info);  in add_info()
754 			node->unloaded_info = NULL;  in add_info()
761 		if (!gcov_info_is_compatible(node->loaded_info[0], info)) {  in add_info()
769 	kfree(node->loaded_info);  in add_info()
770 	node->loaded_info = loaded_info;  in add_info()
771 	node->num_loaded = num + 1;  in add_info()
777 static int get_info_index(struct gcov_node *node, struct gcov_info *info)  in get_info_index()  argument
781 	for (i = 0; i < node->num_loaded; i++) {  in get_info_index()
782 		if (node->loaded_info[i] == info)  in get_info_index()
791 static void save_info(struct gcov_node *node, struct gcov_info *info)  in save_info()  argument
793 	if (node->unloaded_info)  in save_info()
794 		gcov_info_add(node->unloaded_info, info);  in save_info()
796 		node->unloaded_info = gcov_info_dup(info);  in save_info()
797 		if (!node->unloaded_info) {  in save_info()
809 static void remove_info(struct gcov_node *node, struct gcov_info *info)  in remove_info()  argument
813 	i = get_info_index(node, info);  in remove_info()
820 		save_info(node, info);  in remove_info()
822 	node->loaded_info[i] = node->loaded_info[node->num_loaded - 1];  in remove_info()
823 	node->num_loaded--;  in remove_info()
824 	if (node->num_loaded > 0)  in remove_info()
827 	kfree(node->loaded_info);  in remove_info()
828 	node->loaded_info = NULL;  in remove_info()
829 	node->num_loaded = 0;  in remove_info()
830 	if (!node->unloaded_info)  in remove_info()
831 		remove_node(node);  in remove_info()
840 	struct gcov_node *node;  in gcov_event()  local
843 	node = get_node_by_name(gcov_info_filename(info));  in gcov_event()
846 		if (node)  in gcov_event()
847 			add_info(node, info);  in gcov_event()
852 		if (node)  in gcov_event()
853 			remove_info(node, info);  in gcov_event()