block: add a sb_bdev_nr_blocks helper

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Add a helper to return the size of sb->s_bdev in sb->s_blocksize_bits
based unites.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20211018101130.1838532-26-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2021-10-18 12:11:25 +02:00 • committed by Jens Axboe

parent 2a93ad8fcb

commit bcc6e2cfaa

1 changed files with 6 additions and 0 deletions

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include/linux/genhd.h

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