diff mbox series

[17/19] sr: use bdev_check_media_change

Message ID 20200908145347.2992670-18-hch@lst.de
State New, archived
Headers show
Series [01/19] block: add a bdev_check_media_change helper | expand

Commit Message

Christoph Hellwig Sept. 8, 2020, 2:53 p.m. UTC
Switch to use bdev_check_media_change instead of check_disk_change and
call sr_block_revalidate_disk manually.  Also add an explicit call to
sr_block_revalidate_disk just before disk_add() to ensure we always
read check for a ready unit and read the TOC and then stop wiring up
->revalidate_disk.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 drivers/scsi/sr.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Hannes Reinecke Sept. 9, 2020, 7:37 a.m. UTC | #1
On 9/8/20 4:53 PM, Christoph Hellwig wrote:
> Switch to use bdev_check_media_change instead of check_disk_change and
> call sr_block_revalidate_disk manually.  Also add an explicit call to
> sr_block_revalidate_disk just before disk_add() to ensure we always
> read check for a ready unit and read the TOC and then stop wiring up
> ->revalidate_disk.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
> ---
>  drivers/scsi/sr.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@suse.de

Cheers,

Hannes
diff mbox series

Patch

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 3b3a53c6a0de53..34be94b62523fa 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -86,6 +86,7 @@  static int sr_remove(struct device *);
 static blk_status_t sr_init_command(struct scsi_cmnd *SCpnt);
 static int sr_done(struct scsi_cmnd *);
 static int sr_runtime_suspend(struct device *dev);
+static int sr_block_revalidate_disk(struct gendisk *disk);
 
 static const struct dev_pm_ops sr_pm_ops = {
 	.runtime_suspend	= sr_runtime_suspend,
@@ -529,7 +530,8 @@  static int sr_block_open(struct block_device *bdev, fmode_t mode)
 
 	sdev = cd->device;
 	scsi_autopm_get_device(sdev);
-	check_disk_change(bdev);
+	if (bdev_check_media_change(bdev))
+		sr_block_revalidate_disk(bdev->bd_disk);
 
 	mutex_lock(&cd->lock);
 	ret = cdrom_open(&cd->cdi, bdev, mode);
@@ -688,7 +690,6 @@  static const struct block_device_operations sr_bdops =
 	.compat_ioctl	= sr_block_compat_ioctl,
 #endif
 	.check_events	= sr_block_check_events,
-	.revalidate_disk = sr_block_revalidate_disk,
 };
 
 static int sr_open(struct cdrom_device_info *cdi, int purpose)
@@ -802,6 +803,7 @@  static int sr_probe(struct device *dev)
 
 	dev_set_drvdata(dev, cd);
 	disk->flags |= GENHD_FL_REMOVABLE;
+	sr_block_revalidate_disk(disk);
 	device_add_disk(&sdev->sdev_gendev, disk, NULL);
 
 	sdev_printk(KERN_DEBUG, sdev,