ataflop: use bdev_check_media_change

Switch to use bdev_check_media_change instead of check_disk_change and
call floppy_revalidate manually.  Given that floppy_revalidate only
deals with media change events, 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/block/ataflop.c b/drivers/block/ataflop.c
index a50e13a..3e881fd 100644 (file)
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1732,7 +1732,8 @@ static int fd_locked_ioctl(struct block_device *bdev, fmode_t mode,
                /* invalidate the buffer track to force a reread */
                BufferDrive = -1;
                set_bit(drive, &fake_change);
-               check_disk_change(bdev);
+               if (bdev_check_media_change(bdev))
+                       floppy_revalidate(bdev->bd_disk);
                return 0;
        default:
                return -EINVAL;
@@ -1909,7 +1910,8 @@ static int floppy_open(struct block_device *bdev, fmode_t mode)
                return 0;
 
        if (mode & (FMODE_READ|FMODE_WRITE)) {
-               check_disk_change(bdev);
+               if (bdev_check_media_change(bdev))
+                       floppy_revalidate(bdev->bd_disk);
                if (mode & FMODE_WRITE) {
                        if (p->wpstat) {
                                if (p->ref < 0)
@@ -1953,7 +1955,6 @@ static const struct block_device_operations floppy_fops = {
        .release        = floppy_release,
        .ioctl          = fd_ioctl,
        .check_events   = floppy_check_events,
-       .revalidate_disk= floppy_revalidate,
 };
 
 static const struct blk_mq_ops ataflop_mq_ops = {