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Subjectbdi cleanups v2
Date
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 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 | 2
block/blk-integrity.c | 4
block/blk-mq-debugfs.c | 1
block/blk-settings.c | 5
block/blk-sysfs.c | 282 ++++++++++--------------------------------
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 | 1
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 | 4
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 | 1
fs/vboxsf/super.c | 1
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 | 12 -
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, 204 insertions(+), 464 deletions(-)

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