[PATCH] remove unnecessary blk_queue_bounce in SG_IO

When I converted the original patch, I left unnecessary blk_queue_bounce in
SG_IO.

Signed-off-by: FUJITA Tomonori <[e-mail]>
Signed-off-by: Mike Christie <[e-mail]>
Signed-off-by: Jens Axboe <[e-mail]>

block/scsi_ioctl.c

···
 
 	rq->cmd_type = REQ_TYPE_BLOCK_PC;
 
-	/*
-	 * bounce this after holding a reference to the original bio, it's
-	 * needed for proper unmapping
-	 */
-	if (rq->bio)
-		blk_queue_bounce(q, &rq->bio);
-
 	rq->timeout = jiffies_to_msecs(hdr->timeout);
 	if (!rq->timeout)
 		rq->timeout = q->sg_timeout;