linux/fs/jbd2
Linus Torvalds 83f1454877 Various ext4 updates for 7.2-rc1:
* A major rework of the fast commit mechanism to avoid lock
   contention and deadlocks.  We also export snapshot statistics
   in /proc/fs/ext4/*/fc_info.
 * Performance optimization for directory hash computation by
   processing input in 4-byte chunks and removing function pointers,
   along with new KUnit tests for directory hash.
 * Cleanups in JBD2 to remove special slabs and use kmalloc() instead.
 * Various bug fixes, including:
    - Early validation of donor superblock in EXT4_IOC_MOVE_EXT to avoid
      cross-fs deadlock
    - Fix for a kernel BUG in ext4_write_inline_data_end under
      data=journal
    - Fix for a NULL dereference in jbd2_journal_dirty_metadata when
      handle is aborted
    - Fix for an underflow in JBD2 fast commit block initialization check
    - Fix for LOGFLUSH shutdown ordering to ensure ordered data writeback
    - Miscellaneous fixes for error path return values and KUnit assertions.
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Merge tag 'ext4_for_linus-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:

 - A major rework of the fast commit mechanism to avoid lock contention
   and deadlocks. We also export snapshot statistics in
   /proc/fs/ext4/*/fc_info

 - Performance optimization for directory hash computation by processing
   input in 4-byte chunks and removing function pointers, along with new
   KUnit tests for directory hash

 - Cleanups in JBD2 to remove special slabs and use kmalloc() instead

 - Various bug fixes, including:
     - Early validation of donor superblock in EXT4_IOC_MOVE_EXT to
       avoid cross-fs deadlock
     - Fix for a kernel BUG in ext4_write_inline_data_end under
       data=journal
     - Fix for a NULL dereference in jbd2_journal_dirty_metadata when
       handle is aborted
     - Fix for an underflow in JBD2 fast commit block initialization
       check
     - Fix for LOGFLUSH shutdown ordering to ensure ordered data
       writeback
     - Miscellaneous fixes for error path return values and KUnit
       assertions

* tag 'ext4_for_linus-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: validate donor file superblock early in EXT4_IOC_MOVE_EXT
  ext4: fix kernel BUG in ext4_write_inline_data_end
  ext4: fix ERR_PTR(0) in ext4_mkdir()
  jbd2: remove special jbd2 slabs
  ext4: remove mention of PageWriteback
  ext4: improve str2hashbuf by processing 4-byte chunks and removing function pointers
  ext4: add Kunit coverage for directory hash computation
  ext4: fast commit: export snapshot stats in fc_info
  ext4: fast commit: add lock_updates tracepoint
  ext4: fast commit: avoid i_data_sem by dropping ext4_map_blocks() in snapshots
  ext4: fast commit: avoid self-deadlock in inode snapshotting
  ext4: fast commit: avoid waiting for FC_COMMITTING
  ext4: lockdep: handle i_data_sem subclassing for special inodes
  ext4: fast commit: snapshot inode state before writing log
  jbd2: fix integer underflow in jbd2_journal_initialize_fast_commit()
  ext4: fix fast commit wait/wake bit mapping on 64-bit
  jbd2: check for aborted handle in jbd2_journal_dirty_metadata()
  ext4: Use %pe to print PTR_ERR()
  ext4: fix LOGFLUSH shutdown ordering to allow ordered-mode data writeback
  ext4: replace KUnit tests for memcmp() with KUNIT_ASSERT_MEMEQ()
2026-06-18 09:42:02 -07:00
..
checkpoint.c jbd2: gracefully abort on checkpointing state corruptions 2026-03-27 23:34:09 -04:00
commit.c Various ext4 updates for 7.2-rc1: 2026-06-18 09:42:02 -07:00
journal.c Various ext4 updates for 7.2-rc1: 2026-06-18 09:42:02 -07:00
Kconfig jbd2: switch to using the crc32c library 2024-12-01 17:23:02 -08:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
recovery.c jbd2: remove journal_t argument from jbd2_chksum() 2025-05-20 10:31:12 -04:00
revoke.c jbd2: fix deadlock in jbd2_journal_cancel_revoke() 2026-04-09 22:09:39 -04:00
transaction.c jbd2: remove special jbd2 slabs 2026-06-10 10:42:55 -04:00