Merge tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block updates from Jens Axboe:

- Add shared memory zero-copy I/O support for ublk, bypassing pe

Merge tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block updates from Jens Axboe:

- Add shared memory zero-copy I/O support for ublk, bypassing per-I/O
copies between kernel and userspace by matching registered buffer
PFNs at I/O time. Includes selftests.

- Refactor bio integrity to support filesystem initiated integrity
operations and arbitrary buffer alignment.

- Clean up bio allocation, splitting bio_alloc_bioset() into clear fast
and slow paths. Add bio_await() and bio_submit_or_kill() helpers,
unify synchronous bi_end_io callbacks.

- Fix zone write plug refcount handling and plug removal races. Add
support for serializing zone writes at QD=1 for rotational zoned
devices, yielding significant throughput improvements.

- Add SED-OPAL ioctls for Single User Mode management and a STACK_RESET
command.

- Add io_uring passthrough (uring_cmd) support to the BSG layer.

- Replace pp_buf in partition scanning with struct seq_buf.

- zloop improvements and cleanups.

- drbd genl cleanup, switching to pre_doit/post_doit.

- NVMe pull request via Keith:
- Fabrics authentication updates
- Enhanced block queue limits support
- Workqueue usage updates
- A new write zeroes device quirk
- Tagset cleanup fix for loop device

- MD pull requests via Yu Kuai:
- Fix raid5 soft lockup in retry_aligned_read()
- Fix raid10 deadlock with check operation and nowait requests
- Fix raid1 overlapping writes on writemostly disks
- Fix sysfs deadlock on array_state=clear
- Proactive RAID-5 parity building with llbitmap, with
write_zeroes_unmap optimization for initial sync
- Fix llbitmap barrier ordering, rdev skipping, and bitmap_ops
version mismatch fallback
- Fix bcache use-after-free and uninitialized closure
- Validate raid5 journal metadata payload size
- Various cleanups

- Various other fixes, improvements, and cleanups

* tag 'for-7.1/block-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (146 commits)
ublk: fix tautological comparison warning in ublk_ctrl_reg_buf
scsi: bsg: fix buffer overflow in scsi_bsg_uring_cmd()
block: refactor blkdev_zone_mgmt_ioctl
MAINTAINERS: update ublk driver maintainer email
Documentation: ublk: address review comments for SHMEM_ZC docs
ublk: allow buffer registration before device is started
ublk: replace xarray with IDA for shmem buffer index allocation
ublk: simplify PFN range loop in __ublk_ctrl_reg_buf
ublk: verify all pages in multi-page bvec fall within registered range
ublk: widen ublk_shmem_buf_reg.len to __u64 for 4GB buffer support
xfs: use bio_await in xfs_zone_gc_reset_sync
block: add a bio_submit_or_kill helper
block: factor out a bio_await helper
block: unify the synchronous bi_end_io callbacks
xfs: fix number of GC bvecs
selftests/ublk: add read-only buffer registration test
selftests/ublk: add filesystem fio verify test for shmem_zc
selftests/ublk: add hugetlbfs shmem_zc test for loop target
selftests/ublk: add shared memory zero-copy test
selftests/ublk: add UBLK_F_SHMEM_ZC support for loop target
...

show more ...

selftests: ublk: test that teardown after incomplete recovery completes

Before the fix, teardown of a ublk server that was attempting to recover
a device, but died when it had submitted a nonempty p

selftests: ublk: test that teardown after incomplete recovery completes

Before the fix, teardown of a ublk server that was attempting to recover
a device, but died when it had submitted a nonempty proper subset of the
fetch commands to any queue would loop forever. Add a test to verify
that, after the fix, teardown completes. This is done by:

- Adding a new argument to the fault_inject target that causes it die
after fetching a nonempty proper subset of the IOs to a queue
- Using that argument in a new test while trying to recover an
already-created device
- Attempting to delete the ublk device at the end of the test; this
hangs forever if teardown from the fault-injected ublk server never
completed.

It was manually verified that the test passes with the fix and hangs
without it.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://patch.msgid.link/20260405-cancel-v2-2-02d711e643c2@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...