Commits
Christoph Hellwig committed 9d74e25737d
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>