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Date:   Wed, 13 Oct 2021 07:10:13 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Coly Li <colyli@...e.de>, Mike Snitzer <snitzer@...hat.com>,
        Song Liu <song@...nel.org>, David Sterba <dsterba@...e.com>,
        Josef Bacik <josef@...icpanda.com>,
        "Theodore Ts'o" <tytso@....edu>,
        OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
        Dave Kleikamp <shaggy@...nel.org>,
        Ryusuke Konishi <konishi.ryusuke@...il.com>,
        Anton Altaparmakov <anton@...era.com>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        Kees Cook <keescook@...omium.org>,
        Phillip Lougher <phillip@...ashfs.org.uk>,
        Jan Kara <jack@...e.com>, linux-block@...r.kernel.org,
        dm-devel@...hat.com, drbd-dev@...ts.linbit.com,
        linux-bcache@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-nvme@...ts.infradead.org,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-ext4@...r.kernel.org, jfs-discussion@...ts.sourceforge.net,
        linux-nfs@...r.kernel.org, linux-nilfs@...r.kernel.org,
        linux-ntfs-dev@...ts.sourceforge.net, ntfs3@...ts.linux.dev,
        reiserfs-devel@...r.kernel.org
Subject: don't use ->bd_inode to access the block device size

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.

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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