UMA_SLAB_MASK
return (vtoslab((vm_offset_t)addr & ~UMA_SLAB_MASK) != NULL);
vtozoneslab((vm_offset_t)addr & (~UMA_SLAB_MASK), &zone, &slab);
vtozoneslab((vm_offset_t)addr & (~UMA_SLAB_MASK), &zone, &slab);
addr, (void *)((u_long)addr & (~UMA_SLAB_MASK)));
vtozoneslab((vm_offset_t)addr & (~UMA_SLAB_MASK), &zone, &slab);
dozero, addr, (void *)((uintptr_t)addr & (~UMA_SLAB_MASK)));
mem = (uint8_t *)((uintptr_t)item & (~UMA_SLAB_MASK));
mem = (uint8_t *)((uintptr_t)item & (~UMA_SLAB_MASK));