Function _vm_map_unlock_read

freebsd/vm/vm_map.c:720–732

}

void
_vm_map_unlock_read(vm_map_t map, const char *file, int line)
{

	if (map->system_map) {
		KASSERT((map->flags & MAP_REPLENISH) == 0,
		    ("%s: MAP_REPLENISH leaked", __func__));
		mtx_unlock_flags_(&map->system_mtx, 0, file, line);
	} else {
		sx_sunlock_(&map->lock, file, line);
		vm_map_process_deferred();
	}
}

int
_vm_map_trylock(vm_map_t map, const char *file, int line)