use_slab          420 mm/memblock.c  	int use_slab = slab_is_available();
use_slab          446 mm/memblock.c  	if (use_slab) {
use_slab          496 mm/memblock.c  	if (!use_slab)
use_slab          500 mm/memblock.c  	*in_slab = use_slab;