block.c: handle BLKDAXGET
block.c: handle BLKDAXGET

* block.c [!BLKDAXGET] (BLKDAXGET): Define.
(block_ioctl): Handle it.

Saruta/strace,cuviper/strace,Saruta/strace,cuviper/strace,cuviper/strace,cuviper/strace,Saruta/strace,cuviper/strace,Saruta/strace,Saruta/strace