Inserts resource in the resource tree
struct resource * insert_resource_conflict(struct resource * parent, struct resource * new);
parent
parent of the new resource
new
new resource to insert
Returns 0 on success, conflict resource if the resource can't be inserted.
This function is equivalent to request_resource_conflict when no conflict happens. If a conflict happens, and the conflicting resources entirely fit within the range of the new resource, then the new resource is inserted and the conflicting resources become children of the new resource.