diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-09-08 16:53:46 +0200 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-09-10 09:32:31 -0600 |
| commit | 38a2b557e23874dd5ed3c767d57d28b2d10b7683 (patch) | |
| tree | 245f1e7e089739ffa8d182ae8d8c52f0d2211490 /drivers/scsi/sr.c | |
| parent | sr: use bdev_check_media_change (diff) | |
| download | linux-dev-38a2b557e23874dd5ed3c767d57d28b2d10b7683.tar.xz linux-dev-38a2b557e23874dd5ed3c767d57d28b2d10b7683.zip | |
sr: simplify sr_block_revalidate_disk
Both callers have a valid CD struture available, so rely on that instead
of getting another reference. Also move the function to avoid a forward
declaration.
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>
Diffstat (limited to 'drivers/scsi/sr.c')
| -rw-r--r-- | drivers/scsi/sr.c | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index 34be94b62523..2b43c0f97442 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -86,7 +86,6 @@ 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, @@ -518,6 +517,17 @@ static blk_status_t sr_init_command(struct scsi_cmnd *SCpnt) return ret; } +static void sr_revalidate_disk(struct scsi_cd *cd) +{ + struct scsi_sense_hdr sshdr; + + /* if the unit is not ready, nothing more to do */ + if (scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr)) + return; + sr_cd_check(&cd->cdi); + get_sectorsize(cd); +} + static int sr_block_open(struct block_device *bdev, fmode_t mode) { struct scsi_cd *cd; @@ -531,7 +541,7 @@ static int sr_block_open(struct block_device *bdev, fmode_t mode) sdev = cd->device; scsi_autopm_get_device(sdev); if (bdev_check_media_change(bdev)) - sr_block_revalidate_disk(bdev->bd_disk); + sr_revalidate_disk(cd); mutex_lock(&cd->lock); ret = cdrom_open(&cd->cdi, bdev, mode); @@ -660,26 +670,6 @@ static unsigned int sr_block_check_events(struct gendisk *disk, return ret; } -static int sr_block_revalidate_disk(struct gendisk *disk) -{ - struct scsi_sense_hdr sshdr; - struct scsi_cd *cd; - - cd = scsi_cd_get(disk); - if (!cd) - return -ENXIO; - - /* if the unit is not ready, nothing more to do */ - if (scsi_test_unit_ready(cd->device, SR_TIMEOUT, MAX_RETRIES, &sshdr)) - goto out; - - sr_cd_check(&cd->cdi); - get_sectorsize(cd); -out: - scsi_cd_put(cd); - return 0; -} - static const struct block_device_operations sr_bdops = { .owner = THIS_MODULE, @@ -803,7 +793,7 @@ static int sr_probe(struct device *dev) dev_set_drvdata(dev, cd); disk->flags |= GENHD_FL_REMOVABLE; - sr_block_revalidate_disk(disk); + sr_revalidate_disk(cd); device_add_disk(&sdev->sdev_gendev, disk, NULL); sdev_printk(KERN_DEBUG, sdev, |