[PATCH RFC 0/2] fs & block: remove bd_inode

[Christian Brauner <brauner@kernel.org>]

Hey Christoph,
Hey Jan,

This is an attempt to remove bdev->bd_inode and restrict direct access
to the block layer, block drivers and few instances in fs/buffer.c where
it's needed. Suggestions to do better welcome!

Thanks!
Christian

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
Christian Brauner (2):
      fs & block: remove bdev->bd_inode
      fs,drivers: remove bdev_inode() usage outside of block layer and drivers

 block/bdev.c                          | 48 ++++++++++--------
 block/blk-zoned.c                     |  4 +-
 block/fops.c                          |  4 +-
 block/genhd.c                         |  8 +--
 block/ioctl.c                         |  8 +--
 block/partitions/core.c               | 11 ++--
 drivers/gpu/drm/drm_gem_vram_helper.c |  2 +-
 drivers/md/bcache/super.c             |  7 +--
 drivers/md/md-bitmap.c                |  2 +-
 drivers/mtd/devices/block2mtd.c       |  4 +-
 drivers/s390/block/dasd_ioctl.c       |  2 +-
 drivers/scsi/scsicam.c                |  2 +-
 fs/affs/file.c                        |  2 +-
 fs/bcachefs/util.h                    |  5 --
 fs/btrfs/dev-replace.c                |  2 +-
 fs/btrfs/disk-io.c                    | 17 ++++---
 fs/btrfs/disk-io.h                    |  4 +-
 fs/btrfs/inode.c                      |  2 +-
 fs/btrfs/super.c                      |  2 +-
 fs/btrfs/volumes.c                    | 26 +++++-----
 fs/btrfs/volumes.h                    |  2 +-
 fs/btrfs/zoned.c                      | 18 ++++---
 fs/btrfs/zoned.h                      |  4 +-
 fs/buffer.c                           | 95 +++++++++++++++++++----------------
 fs/cramfs/inode.c                     |  2 +-
 fs/direct-io.c                        |  7 +--
 fs/erofs/data.c                       |  5 +-
 fs/erofs/internal.h                   |  1 +
 fs/erofs/zmap.c                       |  2 +-
 fs/ext2/inode.c                       |  4 +-
 fs/ext2/xattr.c                       |  2 +-
 fs/ext4/inode.c                       |  8 +--
 fs/ext4/mmp.c                         |  2 +-
 fs/ext4/page-io.c                     |  4 +-
 fs/ext4/super.c                       |  7 ++-
 fs/ext4/xattr.c                       |  2 +-
 fs/f2fs/data.c                        |  7 ++-
 fs/f2fs/f2fs.h                        |  1 +
 fs/fuse/dax.c                         |  2 +-
 fs/gfs2/aops.c                        |  2 +-
 fs/gfs2/bmap.c                        |  2 +-
 fs/gfs2/glock.c                       |  2 +-
 fs/gfs2/meta_io.c                     |  2 +-
 fs/gfs2/ops_fstype.c                  |  2 +-
 fs/hpfs/file.c                        |  2 +-
 fs/iomap/buffered-io.c                |  8 +--
 fs/iomap/direct-io.c                  | 10 ++--
 fs/iomap/swapfile.c                   |  2 +-
 fs/iomap/trace.h                      |  2 +-
 fs/jbd2/commit.c                      |  2 +-
 fs/jbd2/journal.c                     | 29 ++++++-----
 fs/jbd2/recovery.c                    |  6 +--
 fs/jbd2/revoke.c                      | 10 ++--
 fs/jbd2/transaction.c                 |  8 +--
 fs/mpage.c                            | 26 ++++++----
 fs/nilfs2/btnode.c                    |  4 +-
 fs/nilfs2/gcinode.c                   |  2 +-
 fs/nilfs2/mdt.c                       |  2 +-
 fs/nilfs2/page.c                      |  4 +-
 fs/nilfs2/recovery.c                  | 20 ++++----
 fs/nilfs2/segment.c                   |  2 +-
 fs/nilfs2/the_nilfs.c                 |  1 +
 fs/nilfs2/the_nilfs.h                 |  1 +
 fs/ntfs/aops.c                        |  6 +--
 fs/ntfs/file.c                        |  2 +-
 fs/ntfs/mft.c                         |  4 +-
 fs/ntfs3/fsntfs.c                     |  8 +--
 fs/ntfs3/inode.c                      |  2 +-
 fs/ntfs3/super.c                      |  2 +-
 fs/ocfs2/aops.c                       |  2 +-
 fs/ocfs2/journal.c                    |  2 +-
 fs/reiserfs/fix_node.c                |  2 +-
 fs/reiserfs/journal.c                 | 10 ++--
 fs/reiserfs/prints.c                  |  4 +-
 fs/reiserfs/reiserfs.h                |  6 +--
 fs/reiserfs/stree.c                   |  2 +-
 fs/reiserfs/tail_conversion.c         |  2 +-
 fs/xfs/xfs_iomap.c                    |  4 +-
 fs/zonefs/file.c                      |  4 +-
 include/linux/blk_types.h             |  1 -
 include/linux/blkdev.h                |  6 ++-
 include/linux/buffer_head.h           | 68 ++++++++++++++++---------
 include/linux/fs.h                    |  4 +-
 include/linux/iomap.h                 | 13 ++++-
 include/linux/jbd2.h                  | 10 ++--
 include/trace/events/block.h          |  2 +-
 86 files changed, 363 insertions(+), 291 deletions(-)
---
base-commit: 0bd1bf95a554f5f877724c27dbe33d4db0af4d0c
change-id: 20240129-vfs-bdev-file-bd_inode-385a56c57a51