[GIT PULL] Block fixes for 6.19-rc4

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

Here are a set of fixes for block that should go into the 6.19 kernel
release. This pull request contains:

- Scan partition tables asynchronously for ublk, similarly to how nvme
  does it. This avoids potential deadlocks, which is why nvme does it
  that way too. Includes a set of selftests as well.

- MD pull request via Yu
	- Fix null-pointer dereference in raid5 sysfs group_thread_cnt
	  store (Tuo Li)
	- Fix possible mempool corruption during raid1 raid_disks update
	  via sysfs (FengWei Shih)
	- Fix logical_block_size configuration being overwritten during
	  super_1_validate() (Li Nan)
	- Fix forward incompatibility with configurable logical block
	  size: arrays assembled on new kernels could not be assembled
	  on kernels <=6.18 due to non-zero reserved pad rejection
	  (Li Nan)
	- Fix static checker warning about iterator not incremented
	  (Li Nan)

- Skip CPU offlining notifications on unmapped hardware queues.

- bfq-iosched block stats fix

- Fix outdated comment in bfq-iosched

Please pull!


The following changes since commit 1ddb815fdfd45613c32e9bd1f7137428f298e541:

  block: rnbd-clt: Fix signedness bug in init_dev() (2025-12-20 12:56:48 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git tags/block-6.19-20260102

for you to fetch changes up to 69153e8b97ebe2afc0dd101767a9805130305500:

  block, bfq: update outdated comment (2026-01-01 08:57:37 -0700)

----------------------------------------------------------------
block-6.19-20260102

----------------------------------------------------------------
Cong Zhang (1):
      blk-mq: skip CPU offline notify on unmapped hctx

FengWei Shih (1):
      md: suspend array while updating raid_disks via sysfs

Jens Axboe (1):
      Merge tag 'md-6.19-20251231' of gitolite.kernel.org:pub/scm/linux/kernel/git/mdraid/linux into block-6.19

Julia Lawall (1):
      block, bfq: update outdated comment

Li Nan (3):
      md: Fix static checker warning in analyze_sbs
      md: Fix logical_block_size configuration being overwritten
      md: Fix forward incompatibility from configurable logical block size

Ming Lei (3):
      ublk: scan partition in async way
      selftests/ublk: add test for async partition scan
      selftests/ublk: fix Makefile to rebuild on header changes

Tuo Li (1):
      md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt()

shechenglong (1):
      block,bfq: fix aux stat accumulation destination

 block/bfq-cgroup.c                              |  2 +-
 block/bfq-iosched.h                             |  2 +-
 block/blk-mq.c                                  |  2 +-
 drivers/block/ublk_drv.c                        | 35 +++++++++++--
 drivers/md/md.c                                 | 61 ++++++++++++++++++----
 drivers/md/raid5.c                              | 10 ++--
 tools/testing/selftests/ublk/Makefile           |  5 +-
 tools/testing/selftests/ublk/test_common.sh     | 16 ++++--
 tools/testing/selftests/ublk/test_generic_15.sh | 68 +++++++++++++++++++++++++
 9 files changed, 174 insertions(+), 27 deletions(-)
 create mode 100755 tools/testing/selftests/ublk/test_generic_15.sh

-- 
Jens Axboe