sd: rename the scsi_disk.dev field

dev is very hard to grep for.  Give the field a more descriptive name and
documents its purpose.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20220308055200.735835-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2022-03-08 06:51:50 +01:00 committed by Jens Axboe
parent e7f7655227
commit fad45c3007
2 changed files with 18 additions and 13 deletions

View File

@ -672,7 +672,7 @@ static struct scsi_disk *scsi_disk_get(struct gendisk *disk)
if (disk->private_data) {
sdkp = scsi_disk(disk);
if (scsi_device_get(sdkp->device) == 0)
get_device(&sdkp->dev);
get_device(&sdkp->disk_dev);
else
sdkp = NULL;
}
@ -685,7 +685,7 @@ static void scsi_disk_put(struct scsi_disk *sdkp)
struct scsi_device *sdev = sdkp->device;
mutex_lock(&sd_ref_mutex);
put_device(&sdkp->dev);
put_device(&sdkp->disk_dev);
scsi_device_put(sdev);
mutex_unlock(&sd_ref_mutex);
}
@ -3529,14 +3529,14 @@ static int sd_probe(struct device *dev)
SD_MOD_TIMEOUT);
}
device_initialize(&sdkp->dev);
sdkp->dev.parent = get_device(dev);
sdkp->dev.class = &sd_disk_class;
dev_set_name(&sdkp->dev, "%s", dev_name(dev));
device_initialize(&sdkp->disk_dev);
sdkp->disk_dev.parent = get_device(dev);
sdkp->disk_dev.class = &sd_disk_class;
dev_set_name(&sdkp->disk_dev, "%s", dev_name(dev));
error = device_add(&sdkp->dev);
error = device_add(&sdkp->disk_dev);
if (error) {
put_device(&sdkp->dev);
put_device(&sdkp->disk_dev);
goto out;
}
@ -3577,7 +3577,7 @@ static int sd_probe(struct device *dev)
error = device_add_disk(dev, gd, NULL);
if (error) {
put_device(&sdkp->dev);
put_device(&sdkp->disk_dev);
goto out;
}
@ -3628,7 +3628,7 @@ static int sd_remove(struct device *dev)
sdkp = dev_get_drvdata(dev);
scsi_autopm_get_device(sdkp->device);
device_del(&sdkp->dev);
device_del(&sdkp->disk_dev);
del_gendisk(sdkp->disk);
sd_shutdown(dev);
@ -3636,7 +3636,7 @@ static int sd_remove(struct device *dev)
mutex_lock(&sd_ref_mutex);
dev_set_drvdata(dev, NULL);
put_device(&sdkp->dev);
put_device(&sdkp->disk_dev);
mutex_unlock(&sd_ref_mutex);
return 0;

View File

@ -69,7 +69,12 @@ enum {
struct scsi_disk {
struct scsi_device *device;
struct device dev;
/*
* disk_dev is used to show attributes in /sys/class/scsi_disk/,
* but otherwise not really needed. Do not use for refcounting.
*/
struct device disk_dev;
struct gendisk *disk;
struct opal_dev *opal_dev;
#ifdef CONFIG_BLK_DEV_ZONED
@ -126,7 +131,7 @@ struct scsi_disk {
unsigned security : 1;
unsigned ignore_medium_access_errors : 1;
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)
#define to_scsi_disk(obj) container_of(obj, struct scsi_disk, disk_dev)
static inline struct scsi_disk *scsi_disk(struct gendisk *disk)
{