bdi cleanups v4

Christoph Hellwig
2020-09-10T21:00:08Z

Hi Jens,

this series contains a bunch of different BDI cleanups. The biggest item
is to isolate block drivers from the BDI in preparation of changing the
lifetime of the block device BDI in a follow up series.

Changes since v3:
- rebased on the lasted block tree, which has some of the prep
changes merged
- extend the ->ra_pages changes to ->io_pages
- move initializing ->ra_pages and ->io_pages for block devices to
blk_register_queue

Changes since v2:
- fix a rw_page return value check
- fix up various changelogs

Changes since v1:
- rebased to the for-5.9/block-merge branch
- explicitly set the readahead to 0 for ubifs, vboxsf and mtd
- split the zram block_device operations
- let rw_page users fall back to bios in swap_readpage

Diffstat:
block/blk-core.c | 3 -
block/blk-integrity.c | 4 +-
block/blk-mq-debugfs.c | 1
block/blk-settings.c | 5 +-
block/blk-sysfs.c | 4 +-
block/genhd.c | 13 +++++--
drivers/block/aoe/aoeblk.c | 2 -
drivers/block/brd.c | 1
drivers/block/drbd/drbd_nl.c | 18 ---------
drivers/block/drbd/drbd_req.c | 4 --
drivers/block/rbd.c | 2 -
drivers/block/zram/zram_drv.c | 19 +++++++---
drivers/md/bcache/super.c | 4 --
drivers/md/dm-table.c | 9 +---
drivers/md/raid0.c | 16 --------
drivers/md/raid10.c | 46 ++++++++----------------
drivers/md/raid5.c | 31 +++++++---------
drivers/mmc/core/queue.c | 3 -
drivers/mtd/mtdcore.c | 2 +
drivers/nvdimm/btt.c | 2 -
drivers/nvdimm/pmem.c | 1
drivers/nvme/host/core.c | 3 -
drivers/nvme/host/multipath.c | 10 +----
drivers/scsi/iscsi_tcp.c | 4 +-
fs/9p/vfs_file.c | 2 -
fs/9p/vfs_super.c | 6 ++-
fs/afs/super.c | 1
fs/btrfs/disk-io.c | 2 -
fs/fs-writeback.c | 7 ++-
fs/fuse/inode.c | 4 +-
fs/namei.c | 4 +-
fs/nfs/super.c | 9 ----
fs/super.c | 2 +
fs/ubifs/super.c | 2 +
fs/vboxsf/super.c | 2 +
include/linux/backing-dev.h | 78 +++++++-----------------------------------
include/linux/blkdev.h | 3 +
include/linux/drbd.h | 1
include/linux/fs.h | 2 -
mm/backing-dev.c | 13 +++----
mm/filemap.c | 4 +-
mm/memcontrol.c | 2 -
mm/memory-failure.c | 2 -
mm/migrate.c | 2 -
mm/mmap.c | 2 -
mm/page-writeback.c | 18 ++++-----
mm/page_io.c | 18 +++++----
mm/swapfile.c | 4 +-
48 files changed, 144 insertions(+), 253 deletions(-)