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| author | Christoph Hellwig <hch@lst.de> | 2021-10-18 12:11:05 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 14:43:22 -0600 |
| commit | 6dcbb52cddd9e50c8f6625b02a31f6dffc0d1a7b (patch) | |
| tree | 0b62fa76b092b9525da5cbba47eeee7ed90064d0 /drivers/md/dm-dust.c | |
| parent | da7b392467da82f8b8cbfe69360e3128688c9ddb (diff) | |
| download | lwn-6dcbb52cddd9e50c8f6625b02a31f6dffc0d1a7b.tar.gz lwn-6dcbb52cddd9e50c8f6625b02a31f6dffc0d1a7b.zip | |
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>
Diffstat (limited to 'drivers/md/dm-dust.c')
| -rw-r--r-- | drivers/md/dm-dust.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c index 3163e2b1418e..03672204b0e3 100644 --- a/drivers/md/dm-dust.c +++ b/drivers/md/dm-dust.c @@ -415,7 +415,7 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv, char *result, unsigned int maxlen) { struct dust_device *dd = ti->private; - sector_t size = i_size_read(dd->dev->bdev->bd_inode) >> SECTOR_SHIFT; + sector_t size = bdev_nr_sectors(dd->dev->bdev); bool invalid_msg = false; int r = -EINVAL; unsigned long long tmp, block; @@ -544,8 +544,7 @@ static int dust_prepare_ioctl(struct dm_target *ti, struct block_device **bdev) /* * Only pass ioctls through if the device sizes match exactly. */ - if (dd->start || - ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT) + if (dd->start || ti->len != bdev_nr_sectors(dev->bdev)) return 1; return 0; |