btrfs: use bdev_nr_bytes instead of open coding it

Use the proper helper to read the block device size.

Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Reviewed-by: Anand Jain <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Acked-by: David Sterba <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions