[PATCH 12/19] ide-cd: use bdev_check_media_changed

[Christoph Hellwig <hch@lst.de>]

Switch to use bdev_check_media_changed instead of check_disk_change and
call idecd_revalidate_disk manually.  Given that idecd_revalidate_disk
only re-reads the TOC, and we already do the same at probe time, 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>
---
 drivers/ide/ide-cd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 212bb2d8bf346a..6a38cbc80aea0d 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -56,6 +56,7 @@ static DEFINE_MUTEX(ide_cd_mutex);
 static DEFINE_MUTEX(idecd_ref_mutex);
 
 static void ide_cd_release(struct device *);
+static int idecd_revalidate_disk(struct gendisk *disk);
 
 static struct cdrom_info *ide_cd_get(struct gendisk *disk)
 {
@@ -1611,7 +1612,8 @@ static int idecd_open(struct block_device *bdev, fmode_t mode)
 	struct cdrom_info *info;
 	int rc = -ENXIO;
 
-	check_disk_change(bdev);
+	if (bdev_check_media_change(bdev))
+		idecd_revalidate_disk(bdev->bd_disk);
 
 	mutex_lock(&ide_cd_mutex);
 	info = ide_cd_get(bdev->bd_disk);
@@ -1770,7 +1772,6 @@ static const struct block_device_operations idecd_ops = {
 	.compat_ioctl		= IS_ENABLED(CONFIG_COMPAT) ?
 				  idecd_compat_ioctl : NULL,
 	.check_events		= idecd_check_events,
-	.revalidate_disk	= idecd_revalidate_disk
 };
 
 /* module options */
-- 
2.28.0