dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them
Use the proper helpers to read the block device size.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Link: https://lore.kernel.org/r/20211018101130.1838532-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/md/dm-era-target.c b/drivers/md/dm-era-target.c
index 2a78f68..1f6bf15 100644
--- a/drivers/md/dm-era-target.c
+++ b/drivers/md/dm-era-target.c
@@ -1681,7 +1681,7 @@ static int era_message(struct dm_target *ti, unsigned argc, char **argv,
static sector_t get_dev_size(struct dm_dev *dev)
{
- return i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;
+ return bdev_nr_sectors(dev->bdev);
}
static int era_iterate_devices(struct dm_target *ti,