60 	struct ext4_system_zone *new_entry = NULL, *entry;  in add_system_zone()  local
77 			new_entry = rb_entry(new_node, struct ext4_system_zone,  in add_system_zone()
83 	if (!new_entry) {  in add_system_zone()
84 		new_entry = kmem_cache_alloc(ext4_system_zone_cachep,  in add_system_zone()
86 		if (!new_entry)  in add_system_zone()
88 		new_entry->start_blk = start_blk;  in add_system_zone()
89 		new_entry->count = count;  in add_system_zone()
90 		new_node = &new_entry->node;  in add_system_zone()
100 		if (can_merge(entry, new_entry)) {  in add_system_zone()
101 			new_entry->start_blk = entry->start_blk;  in add_system_zone()
102 			new_entry->count += entry->count;  in add_system_zone()
112 		if (can_merge(new_entry, entry)) {  in add_system_zone()
113 			new_entry->count += entry->count;  in add_system_zone()