sd: use bdev_check_media_change

Switch to use bdev_check_media_change instead of check_disk_change and
call sd_revalidate_disk manually.  As sd also calls sd_revalidate_disk
manually during probe and open, the extra call into ->revalidate_disk
from bdev_disk_changed is not required either, so stop wiring up the
method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 2bec8cd..d020639 100644 (file)
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1381,8 +1381,10 @@ static int sd_open(struct block_device *bdev, fmode_t mode)
        if (!scsi_block_when_processing_errors(sdev))
                goto error_out;
 
-       if (sdev->removable || sdkp->write_prot)
-               check_disk_change(bdev);
+       if (sdev->removable || sdkp->write_prot) {
+               if (bdev_check_media_change(bdev))
+                       sd_revalidate_disk(bdev->bd_disk);
+       }
 
        /*
         * If the drive is empty, just let the open fail.
@@ -1843,7 +1845,6 @@ static const struct block_device_operations sd_fops = {
        .compat_ioctl           = sd_compat_ioctl,
 #endif
        .check_events           = sd_check_events,
-       .revalidate_disk        = sd_revalidate_disk,
        .unlock_native_capacity = sd_unlock_native_capacity,
        .report_zones           = sd_zbc_report_zones,
        .pr_ops                 = &sd_pr_ops,