Re: [PATCH v9 0/4] blk-throttle bugfix

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在 2022/08/31 19:31, Yu Kuai 写道:
Hi, Jens!

在 2022/08/29 10:22, Yu Kuai 写道:
From: Yu Kuai <yukuai3@xxxxxxxxxx>

Changes in v9:
  - renaming the flag BIO_THROTTLED to BIO_BPS_THROTTLED, and always
  apply iops limit in path 1;
  - add tag for patch 4
Changes in v8:
  - use a new solution in patch 1
  - move cleanups to a separate patchset
  - rename bytes/io_skipped to carryover_bytes/ios in patch 4
Changes in v7:
  - add patch 5 to improve handling of re-entered bio for bps limit
  - as suggested by Tejun, add some comments
  - sdd some Acked tag by Tejun
Changes in v6:
  - rename parameter in patch 3
  - add comments and reviewed tag for patch 4
Changes in v5:
  - add comments in patch 4
  - clear bytes/io_skipped in throtl_start_new_slice_with_credit() in
  patch 4
  - and cleanup patches 5-8
Changes in v4:
  - add reviewed-by tag for patch 1
  - add patch 2,3
  - use a different way to fix io hung in patch 4
Changes in v3:
  - fix a check in patch 1
  - fix link err in patch 2 on 32-bit platform
  - handle overflow in patch 2
Changes in v2:
  - use a new solution suggested by Ming
  - change the title of patch 1
  - add patch 2

Patch 1 fix that blk-throttle can't work if multiple bios are throttle.
Patch 2 fix overflow while calculating wait time.
Patch 3,4 fix io hung due to configuration updates.

Previous version:
v1: https://lore.kernel.org/all/20220517134909.2910251-1-yukuai3@xxxxxxxxxx/ v2: https://lore.kernel.org/all/20220518072751.1188163-1-yukuai3@xxxxxxxxxx/ v3: https://lore.kernel.org/all/20220519085811.879097-1-yukuai3@xxxxxxxxxx/ v4: https://lore.kernel.org/all/20220523082633.2324980-1-yukuai3@xxxxxxxxxx/ v5: https://lore.kernel.org/all/20220528064330.3471000-1-yukuai3@xxxxxxxxxx/ v6: https://lore.kernel.org/all/20220701093441.885741-1-yukuai1@xxxxxxxxxxxxxxx/ v7: https://lore.kernel.org/all/20220802140415.2960284-1-yukuai1@xxxxxxxxxxxxxxx/ v8: https://lore.kernel.org/all/20220823033130.874230-1-yukuai1@xxxxxxxxxxxxxxx/

Yu Kuai (4):
   blk-throttle: fix that io throttle can only work for single bio
   blk-throttle: prevent overflow while calculating wait time
   blk-throttle: factor out code to calculate ios/bytes_allowed
   blk-throttle: fix io hung due to configuration updates

Can you apply this patchset now?

friendly ping...

Thanks,
Kuai

  block/bio.c               |   2 -
  block/blk-throttle.c      | 137 +++++++++++++++++++++++++-------------
  block/blk-throttle.h      |  11 ++-
  include/linux/bio.h       |   2 +-
  include/linux/blk_types.h |   2 +-
  5 files changed, 104 insertions(+), 50 deletions(-)


.





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