Re: don't use ->bd_inode to access the block device size

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On 13/10/2021 13:10, Christoph Hellwig wrote:
Hi Jens,

various drivers currently poke directy at the block device inode, which
is a bit of a mess.  This series cleans up the places that read the
block device size to use the proper helpers.  I have separate patches
for many of the other bd_inode uses, but this series is already big
enough as-is,

I wondered about adding a helper for looking at the size in byte units
to avoid the SECTOR_SHIFT shifts in various places.  But given that
I could not come up with a good name and


block devices fundamentally
work in sector size granularity I decided against that.

Yes. However, POV of its usage outside the block-layer, a wrapper helper is a lot better. No.? If you agree, how about naming it bdev_size()?

Thanks, Anand


Diffstat:
  block/fops.c                        |    2 +-
  drivers/block/drbd/drbd_int.h       |    3 +--
  drivers/md/bcache/super.c           |    2 +-
  drivers/md/bcache/util.h            |    4 ----
  drivers/md/bcache/writeback.c       |    2 +-
  drivers/md/dm-bufio.c               |    2 +-
  drivers/md/dm-cache-metadata.c      |    2 +-
  drivers/md/dm-cache-target.c        |    2 +-
  drivers/md/dm-clone-target.c        |    2 +-
  drivers/md/dm-dust.c                |    5 ++---
  drivers/md/dm-ebs-target.c          |    2 +-
  drivers/md/dm-era-target.c          |    2 +-
  drivers/md/dm-exception-store.h     |    2 +-
  drivers/md/dm-flakey.c              |    3 +--
  drivers/md/dm-integrity.c           |    6 +++---
  drivers/md/dm-linear.c              |    3 +--
  drivers/md/dm-log-writes.c          |    4 ++--
  drivers/md/dm-log.c                 |    2 +-
  drivers/md/dm-mpath.c               |    2 +-
  drivers/md/dm-raid.c                |    6 +++---
  drivers/md/dm-switch.c              |    2 +-
  drivers/md/dm-table.c               |    3 +--
  drivers/md/dm-thin-metadata.c       |    2 +-
  drivers/md/dm-thin.c                |    2 +-
  drivers/md/dm-verity-target.c       |    3 +--
  drivers/md/dm-writecache.c          |    2 +-
  drivers/md/dm-zoned-target.c        |    2 +-
  drivers/md/md.c                     |   26 +++++++++++---------------
  drivers/mtd/devices/block2mtd.c     |    5 +++--
  drivers/nvme/target/io-cmd-bdev.c   |    4 ++--
  drivers/target/target_core_iblock.c |    5 +++--
  fs/affs/super.c                     |    2 +-
  fs/btrfs/dev-replace.c              |    2 +-
  fs/btrfs/disk-io.c                  |    3 ++-
  fs/btrfs/ioctl.c                    |    4 ++--
  fs/btrfs/volumes.c                  |    7 ++++---
  fs/buffer.c                         |    4 ++--
  fs/cramfs/inode.c                   |    2 +-
  fs/ext4/super.c                     |    2 +-
  fs/fat/inode.c                      |    5 +----
  fs/hfs/mdb.c                        |    2 +-
  fs/hfsplus/wrapper.c                |    2 +-
  fs/jfs/resize.c                     |    5 ++---
  fs/jfs/super.c                      |    5 ++---
  fs/nfs/blocklayout/dev.c            |    4 ++--
  fs/nilfs2/ioctl.c                   |    2 +-
  fs/nilfs2/super.c                   |    2 +-
  fs/nilfs2/the_nilfs.c               |    3 ++-
  fs/ntfs/super.c                     |    8 +++-----
  fs/ntfs3/super.c                    |    3 +--
  fs/pstore/blk.c                     |    4 ++--
  fs/reiserfs/super.c                 |    7 ++-----
  fs/squashfs/super.c                 |    5 +++--
  fs/udf/lowlevel.c                   |    5 ++---
  fs/udf/super.c                      |    9 +++------
  include/linux/genhd.h               |    6 ++++++
  56 files changed, 100 insertions(+), 117 deletions(-)


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