Merge tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Features:

   - shutdown ioctl support (needs CONFIG_BTRFS_EXPERIMENTAL for now):
      - set filesystem state as being shut down (also named going down
        in other filesystems), where all active operations return EIO
        and this cannot be changed until unmount
      - pending operations are attempted to be finished but error
        messages may still show up depending on where exactly the
        shutdown happened

   - scrub (and device replace) vs suspend/hibernate:
      - a running scrub will prevent suspend, which can be annoying as
        suspend is an immediate request and scrub is not critical
      - filesystem freezing before suspend was not sufficient as the
        problem was in process freezing
      - behaviour change: on suspend scrub and device replace are
        cancelled, where scrub can record the last state and continue
        from there; the device replace has to be restarted from the
        beginning

   - zone stats exported in sysfs, from the perspective of the
     filesystem this includes active, reclaimable, relocation etc zones

  Performance:

   - improvements when processing space reservation tickets by
     optimizing locking and shrinking critical sections, cumulative
     improvements in lockstat numbers show +15%

  Notable fixes:

   - use vmalloc fallback when allocating bios as high order allocations
     can happen with wide checksums (like sha256)

   - scrub will always track the last position of progress so it's not
     starting from zero after an error

  Core:

   - under experimental config, checksum calculations are offloaded to
     process context, simplifies locking and allows to remove
     compression write worker kthread(s):
      - speed improvement in direct IO throughput with buffered IO
        fallback is +15% when not offloaded but this is more related to
        internal crypto subsystem improvements
      - this will be probably default in the future removing the sysfs
        tunable

   - (experimental) block size > page size updates:
      - support more operations when not using large folios (encoded
        read/write and send)
      - raid56

   - more preparations for fscrypt support

  Other:

   - more conversions to auto-cleaned variables

   - parameter cleanups and removals

   - extended warning fixes

   - improved printing of structured values like keys

   - lots of other cleanups and refactoring"

* tag 'for-6.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (147 commits)
  btrfs: remove unnecessary inode key in btrfs_log_all_parents()
  btrfs: remove redundant zero/NULL initializations in btrfs_alloc_root()
  btrfs: remaining BTRFS_PATH_AUTO_FREE conversions
  btrfs: send: do not allocate memory for xattr data when checking it exists
  btrfs: send: add unlikely to all unexpected overflow checks
  btrfs: reduce arguments to btrfs_del_inode_ref_in_log()
  btrfs: remove root argument from btrfs_del_dir_entries_in_log()
  btrfs: use test_and_set_bit() in btrfs_delayed_delete_inode_ref()
  btrfs: don't search back for dir inode item in INO_LOOKUP_USER
  btrfs: don't rewrite ret from inode_permission
  btrfs: add orig_logical to btrfs_bio for encryption
  btrfs: disable verity on encrypted inodes
  btrfs: disable various operations on encrypted inodes
  btrfs: remove redundant level reset in btrfs_del_items()
  btrfs: simplify leaf traversal after path release in btrfs_next_old_leaf()
  btrfs: optimize balance_level() path reference handling
  btrfs: factor out root promotion logic into promote_child_to_root()
  btrfs: raid56: remove the "_step" infix
  btrfs: raid56: enable bs > ps support
  btrfs: raid56: prepare finish_parity_scrub() to support bs > ps cases
  ...

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