[PATCH v2 00/14] dm: improve bio-based IO accounting

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Hi,

All the changes from this patchset are available here:
https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/log/?h=dm-5.18

This work is based on Jens' for-5.18/block

Please see v1's 0th header for context on motivation behind this patchset:
https://listman.redhat.com/archives/dm-devel/2022-February/msg00193.html

Christoph, I addressed all your feedback from v1 and added the
Reviewed-by:s you provided. Thanks for your review.

Patch 10 now isolates the block changes like you asked.

All further review of this v2 patchset is welcomed.

Mike

Mike Snitzer (14):
  dm: rename split functions
  dm: fold __clone_and_map_data_bio into __split_and_process_bio
  dm: refactor dm_split_and_process_bio a bit
  dm: reduce code duplication in __map_bio
  dm: remove impossible BUG_ON in __send_empty_flush
  dm: remove unused mapped_device argument from free_tio
  dm: remove code only needed before submit_bio recursion
  dm: record old_sector in dm_target_io before calling map function
  dm: move kicking of suspend queue to dm_io_dec_pending
  block: add bio_start_io_acct_remapped for the benefit of DM
  dm: add dm_submit_bio_remap interface
  dm crypt: use dm_submit_bio_remap
  dm delay: use dm_submit_bio_remap
  dm: move duplicate code in callers of alloc_tio into alloc_tio

 block/blk-core.c              |  24 ++---
 drivers/md/dm-core.h          |   2 +
 drivers/md/dm-crypt.c         |   9 +-
 drivers/md/dm-delay.c         |   5 +-
 drivers/md/dm.c               | 234 ++++++++++++++++++++++--------------------
 include/linux/blkdev.h        |  16 ++-
 include/linux/device-mapper.h |   7 ++
 include/uapi/linux/dm-ioctl.h |   4 +-
 8 files changed, 164 insertions(+), 137 deletions(-)

-- 
2.15.0

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