blk_end_request: changing mmc (take 4)

This patch converts mmc to use blk_end_request interfaces.
Related 'uptodate' arguments are converted to 'error'.

Cc: Pierre Ossman <drzeus-mmc@drzeus.cx>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

drivers/mmc/card/block.c

@@ -348,15 +348,7 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 		 * A block was successfully transferred.
 		 */
 		spin_lock_irq(&md->lock);
-		ret = end_that_request_chunk(req, 1, brq.data.bytes_xfered);
-		if (!ret) {
-			/*
-			 * The whole request completed successfully.
-			 */
-			add_disk_randomness(req->rq_disk);
-			blkdev_dequeue_request(req);
-			end_that_request_last(req, 1);
-		}
+		ret = __blk_end_request(req, 0, brq.data.bytes_xfered);
 		spin_unlock_irq(&md->lock);
 	} while (ret);
 
@@ -386,27 +378,21 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 			else
 				bytes = blocks << 9;
 			spin_lock_irq(&md->lock);
-			ret = end_that_request_chunk(req, 1, bytes);
+			ret = __blk_end_request(req, 0, bytes);
 			spin_unlock_irq(&md->lock);
 		}
 	} else if (rq_data_dir(req) != READ &&
 		   (card->host->caps & MMC_CAP_MULTIWRITE)) {
 		spin_lock_irq(&md->lock);
-		ret = end_that_request_chunk(req, 1, brq.data.bytes_xfered);
+		ret = __blk_end_request(req, 0, brq.data.bytes_xfered);
 		spin_unlock_irq(&md->lock);
 	}
 
 	mmc_release_host(card->host);
 
 	spin_lock_irq(&md->lock);
-	while (ret) {
-		ret = end_that_request_chunk(req, 0,
-				req->current_nr_sectors << 9);
-	}
-
-	add_disk_randomness(req->rq_disk);
-	blkdev_dequeue_request(req);
-	end_that_request_last(req, 0);
+	while (ret)
+		ret = __blk_end_request(req, -EIO, blk_rq_cur_bytes(req));
 	spin_unlock_irq(&md->lock);
 
 	return 0;

drivers/mmc/card/queue.c

@@ -94,8 +94,8 @@ static void mmc_request(struct request_queue *q)
 		printk(KERN_ERR "MMC: killing requests for dead queue\n");
 		while ((req = elv_next_request(q)) != NULL) {
 			do {
-				ret = end_that_request_chunk(req, 0,
-					req->current_nr_sectors << 9);
+				ret = __blk_end_request(req, -EIO,
+							blk_rq_cur_bytes(req));
 			} while (ret);
 		}
 		return;