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block: remove ->driverfs_dev 

Now that all drivers that specify a ->driverfs_dev have been converted
to device_add_disk(), the pointer can be removed from struct gendisk.

Cc: Jens Axboe <axboe@fb.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-06-15 19:43:07 -07:00
parent 0d52c756a6
commit 52c44d93c2
3 changed files with 4 additions and 11 deletions
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9
block/genhd.c
View File

@ -618,10 +618,6 @@ void device_add_disk(struct device *parent, struct gendisk *disk)
blk_register_region(disk_devt(disk), disk->minors, NULL,
exact_match, exact_lock, disk);
/* temporary while we convert usages to use disk_to_dev(disk)->parent */
disk->driverfs_dev = parent;
register_disk(parent, disk);
blk_register_queue(disk);
@ -804,10 +800,9 @@ void __init printk_all_partitions(void)
, disk_name(disk, part->partno, name_buf),
part->info ? part->info->uuid : "");
if (is_part0) {
if (disk->driverfs_dev != NULL &&
disk->driverfs_dev->driver != NULL)
if (dev->parent && dev->parent->driver)
printk(" driver: %s\n",
disk->driverfs_dev->driver->name);
dev->parent->driver->name);
else
printk(" (driver?)\n");
} else

2
drivers/nvdimm/bus.c
View File

@ -312,7 +312,7 @@ EXPORT_SYMBOL(__nd_driver_register);
int nvdimm_revalidate_disk(struct gendisk *disk)
{
struct device *dev = disk->driverfs_dev;
struct device *dev = disk_to_dev(disk)->parent;
struct nd_region *nd_region = to_nd_region(dev->parent);
const char *pol = nd_region->ro ? "only" : "write";

4
include/linux/genhd.h
View File

@ -205,7 +205,6 @@ struct gendisk {
void *private_data;
int flags;
struct device *driverfs_dev; // FIXME: remove
struct kobject *slave_dir;
struct timer_rand_state *random;
@ -417,8 +416,7 @@ extern void part_round_stats(int cpu, struct hd_struct *part);
extern void device_add_disk(struct device *parent, struct gendisk *disk);
static inline void add_disk(struct gendisk *disk)
{
/* temporary while we convert callers to device_add_disk */
device_add_disk(disk->driverfs_dev, disk);
device_add_disk(NULL, disk);
}
extern void del_gendisk(struct gendisk *gp);