SCSI sd driver calls revalidate_disk wrapper.

Modify the SCSI disk driver to call the revalidate_disk()
wrapper. This allows us to do some housekeeping such as accounting for
a disk being resized online. The wrapper will call
sd_revalidate_disk() at the appropriate time.
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

drivers/scsi/sd.c

@@ -165,7 +165,7 @@ sd_store_cache_type(struct device *dev, struct device_attribute *attr,
 			sd_print_sense_hdr(sdkp, &sshdr);
 		return -EINVAL;
 	}
-	sd_revalidate_disk(sdkp->disk);
+	revalidate_disk(sdkp->disk);
 	return count;
 }
 
@@ -916,7 +916,7 @@ static void sd_rescan(struct device *dev)
 	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
 
 	if (sdkp) {
-		sd_revalidate_disk(sdkp->disk);
+		revalidate_disk(sdkp->disk);
 		scsi_disk_put(sdkp);
 	}
 }