[PATCH] remove blkdev_scsi_issue_flush_fn again

EXPORT_SYMBOL(blkdev_issue_flush);

/**

 * blkdev_scsi_issue_flush_fn - issue flush for SCSI devices

 * @q:		device queue

 * @disk:	gendisk

 * @error_sector:	error offset

 *

 * Description:

 *    Devices understanding the SCSI command set, can use this function as

 *    a helper for issuing a cache flush. Note: driver is required to store

 *    the error offset (in case of error flushing) in ->sector of struct

 *    request.

 */

int blkdev_scsi_issue_flush_fn(request_queue_t *q, struct gendisk *disk,

			       sector_t *error_sector)

{

	struct request *rq = blk_get_request(q, WRITE, __GFP_WAIT);

	int ret;

	rq->flags |= REQ_BLOCK_PC | REQ_SOFTBARRIER;

	rq->sector = 0;

	memset(rq->cmd, 0, sizeof(rq->cmd));

	rq->cmd[0] = 0x35;

	rq->cmd_len = 12;

	rq->data = NULL;

	rq->data_len = 0;

	rq->timeout = 60 * HZ;

	ret = blk_execute_rq(q, disk, rq, 0);

	if (ret && error_sector)

		*error_sector = rq->sector;

	blk_put_request(rq);

	return ret;

}

EXPORT_SYMBOL(blkdev_scsi_issue_flush_fn);

static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io)

{

	int rw = rq_data_dir(rq);