[GIT PULL] Final block fixes for 6.19-rc1

[GIT PULL] Final block fixes for 6.19-rc1

[Jens Axboe]

Hi Linus,

A bit of a mixed bag in this pull request, but a few important fixes
that should go in - hence let's flush these changes out before -rc1.
This pull request contains:

- Always initialize DMA state, fixing a potentially nasty issue on the
  block side.

- btrfs zoned write fix with cached zone reports.

- Fix corruption issues in bcache with chained bio's, and further make
  it clear that the chained IO handler is simply a marker, it's not code
  meant to be executed.

- Kill old code dealing with synchronous IO polling in the block layer,
  that has been dead for a long time. Only async polling is supported
  these days.

- Fix a lockdep issue in tag_set management, moving it to RCU.

- Fix an issue with ublks bio_vec iteration.

- Don't unconditionally enforce blocking issue of ublk control commands,
  allow some of them with non-blocking issue as they do not block.

Please pull!


The following changes since commit 0f45353dd48037af61f70df3468d25ca46afe909:

  Merge tag 'nvme-6.19-2025-12-04' of git://git.infradead.org/nvme into block-6.19 (2025-12-04 20:58:19 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git tags/block-6.19-20251211

for you to fetch changes up to a0750fae73c55112ea11a4867bee40f11e679405:

  blk-mq-dma: always initialize dma state (2025-12-10 13:41:11 -0700)

----------------------------------------------------------------
block-6.19-20251211

----------------------------------------------------------------
Caleb Sander Mateos (2):
      ublk: allow non-blocking ctrl cmds in IO_URING_F_NONBLOCK issue
      ublk: don't mutate struct bio_vec in iteration

Fengnan Chang (1):
      blk-mq: delete task running check in blk_hctx_poll()

Johannes Thumshirn (1):
      block: fix cached zone reports on devices with native zone append

Keith Busch (1):
      blk-mq-dma: always initialize dma state

Mohamed Khalfella (1):
      block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock

Shida Zhang (2):
      bcache: fix improper use of bi_end_io
      block: prohibit calls to bio_chain_endio

 block/bio.c                 |  6 +++++-
 block/blk-mq-dma.c          |  1 +
 block/blk-mq.c              | 29 ++++++++++-------------------
 block/blk-zoned.c           |  2 +-
 drivers/block/ublk_drv.c    | 28 +++++++++++++++++++++-------
 drivers/md/bcache/request.c |  6 +++---
 6 files changed, 41 insertions(+), 31 deletions(-)

-- 
Jens Axboe

Re: [GIT PULL] Final block fixes for 6.19-rc1

[pr-tracker-bot]

The pull request you sent on Thu, 11 Dec 2025 15:45:32 -0700:

> https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git tags/block-6.19-20251211

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/35ebee7e720944a66befb5899c72ce1e01dfa44e

Thank you!

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