Merge tag 'for-7.4/block-20261021' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxHEADmaster

Pull block updates from Jens Axboe:

 - NVMe updates via Keith:
     - Apple M4 (t8132) ANS2 NVMe support
     - nvme-multipath sysfs attributes for path_state, iopolicies, and
       fail_on_ctrl_loss, plus path state evaluation fixes
     - nvme-tcp parallelized I/O queue allocation and startup, and using
       the caller's network namespace
     - nvmet passthru UAF fix and rework, PR preempt use-after-free
       fixes, auth hardening, and traffic based keep alive support
     - DH-HMAC-CHAP secret attributes readable by root only
     - Various other fixes and cleanups

 - swim driver overhaul and fixes, plus floppy fixes, via a pull from
   Denis

 - Block device buffered and direct I/O rework from Tal: use
   iomap_dirty_folio, take i_rwsem for the write fallback and splice
   read, honor IOCB_NOWAIT in the buffered read path, and reject atomic
   write fallback to buffered I/O

 - Large zone revalidation rework: serialize revalidation, handle
   capacity changes by dropping and retrying zone write plugs, propagate
   read-only and offline conditions, and treat offline and read-only
   zones as dead

 - ublk robustness work around canceled FETCH rounds and going live over
   canceled io commands, dropping the default I/O scheduler, and a batch
   of selftest additions

 - blk-iocost flush cost support and zone append accounting

 - rust block fixes for Send/Sync bounds on GenDisk and TagSet, and
   import style cleanups

 - Atomic write fixes capping size by the PI buffer constraints and
   failing short atomic pins

 - Skip the redundant flush for O_DSYNC direct writes, and only use
   REQ_FUA when the device supports it

 - Store GPT attributes as a raw value

 - Remove support for swapping loop fds

 - Various other fixes and cleanups all over

* tag 'for-7.4/block-20261021' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (144 commits)
  block: restore the iterator when rejecting a misaligned bio
  blk-mq: clear stale inactive flag on hctx reuse
  block, bfq: initialize active lists for all actuators
  zloop: print device that had errors
  ublk: pin module while release work is pending
  blk-mq: drop the tag_set argument from blk_mq_free_rq_map/tags
  blk-mq: share one tags_srcu instance across all tag sets
  blk-iocost: fix stale comment in ioc_rqos_throttle()
  blk-iocost: account zone append completions in latency stats
  blk-iocost: charge zone appends as writes
  blk-iocost: add flush cost support with the flushiops model parameter
  ublk: use global index for reported zones
  selftests: ublk: add test for going live over canceled io commands
  selftests: ublk: stop a batch thread when PREP_IO_CMDS fails
  selftests: ublk: move the control command helpers into ctrl.c
  ublk: refuse to go live after an io command was canceled
  ublk: let STOP_DEV cancel the server's commands before its release
  ublk: allow a NULL io->cmd in the cancel callback
  ublk: reset the FETCH round under ub->mutex
  ublk: reset the FETCH round in release also without a disk
  ...

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