tree c36c53290f8b5ed7f1ae9a89b534a9c3155c0491
parent 742ee69b92d9559e968f70cf0a49157866f8fbef
author Christoph Hellwig <hch@lst.de> 1397464207 +0200
committer Jens Axboe <axboe@fb.com> 1397592182 -0600

blk-mq: do not initialize req->special

Drivers can reach their private data easily using the blk_mq_rq_to_pdu
helper and don't need req->special.  By not initializing it code can
be simplified nicely, and we also shave off a few more instructions from
the I/O path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>