From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 16 Sep 2024 11:10:46 +0000 (+0200)
Subject: Merge tag 'for-6.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
X-Git-Url: https://git.dujemihanovic.xyz/?a=commitdiff_plain;h=7a40974fd0efa3698de4c6d1d0ee0436bcc4445d;p=linux.git

Merge tag 'for-6.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "This brings mostly refactoring, cleanups, minor performance
  optimizations and usual fixes. The folio API conversions are most
  noticeable.

  There's one less visible change that could have a high impact. The
  extent lock scope for read is reduced, not held for the entire
  operation. In the buffered read case it's left to page or inode lock,
  some direct io read synchronization is still needed.

  This used to prevent deadlocks induced by page faults during direct
  io, so there was a 4K limitation on the requests, e.g. for io_uring.
  In the future this will allow smoother integration with iomap where
  the extent read lock was a major obstacle.

  User visible changes:

   - the FSTRIM ioctl updates the processed range even after an error or
     interruption

   - cleaner thread is woken up in SYNC ioctl instead of waking the
     transaction thread that can take some delay before waking up the
     cleaner, this can speed up cleaning of deleted subvolumes

   - print an error message when opening a device fail, e.g. when it's
     unexpectedly read-only

  Core changes:

   - improved extent map handling in various ways (locking, iteration, ...)

   - new assertions and locking annotations

   - raid-stripe-tree locking fixes

   - use xarray for tracking dirty qgroup extents, switched from rb-tree

   - turn the subpage test to compile-time condition if possible (e.g.
     on x86_64 with 4K pages), this allows to skip a lot of ifs and
     remove dead code

   - more preparatory work for compression in subpage mode

  Cleanups and refactoring

   - folio API conversions, many simple cases where page is passed so
     switch it to folios

   - more subpage code refactoring, update page state bitmap processing

   - introduce auto free for btrfs_path structure, use for the simple
     cases"

* tag 'for-6.12-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (110 commits)
  btrfs: only unlock the to-be-submitted ranges inside a folio
  btrfs: merge btrfs_folio_unlock_writer() into btrfs_folio_end_writer_lock()
  btrfs: BTRFS_PATH_AUTO_FREE in orphan.c
  btrfs: use btrfs_path auto free in zoned.c
  btrfs: DEFINE_FREE for struct btrfs_path
  btrfs: remove btrfs_folio_end_all_writers()
  btrfs: constify more pointer parameters
  btrfs: rework BTRFS_I as macro to preserve parameter const
  btrfs: add and use helper to verify the calling task has locked the inode
  btrfs: always update fstrim_range on failure in FITRIM ioctl
  btrfs: convert copy_inline_to_page() to use folio
  btrfs: convert btrfs_decompress() to take a folio
  btrfs: convert zstd_decompress() to take a folio
  btrfs: convert lzo_decompress() to take a folio
  btrfs: convert zlib_decompress() to take a folio
  btrfs: convert try_release_extent_mapping() to take a folio
  btrfs: convert try_release_extent_state() to take a folio
  btrfs: convert submit_eb_page() to take a folio
  btrfs: convert submit_eb_subpage() to take a folio
  btrfs: convert read_key_bytes() to take a folio
  ...
---

7a40974fd0efa3698de4c6d1d0ee0436bcc4445d