Function lock_profile_object_lookup

freebsd/kern/subr_lock.c:566–593

}

static struct lock_profile_object *
lock_profile_object_lookup(struct lock_object *lo, int spin, const char *file,
    int line)
{
	struct lock_profile_object *l;
	struct lock_prof_type *type;
	struct lpohead *head;

	head = &curthread->td_lprof[spin];
	LIST_FOREACH(l, head, lpo_link)
		if (l->lpo_obj == lo && l->lpo_file == file &&
		    l->lpo_line == line)
			return (l);
	type = &LP_CPU_SELF->lpc_types[spin];
	l = LIST_FIRST(&type->lpt_lpoalloc);
	if (l == NULL) {
		lock_prof_rejected++;
		return (NULL);
	}
	LIST_REMOVE(l, lpo_link);
	l->lpo_obj = lo;
	l->lpo_file = file;
	l->lpo_line = line;
	l->lpo_cnt = 0;
	LIST_INSERT_HEAD(head, l, lpo_link);

	return (l);
}

void
lock_profile_obtain_lock_success(struct lock_object *lo, int contested,