ext4 fixes for 7.0-rc6

The following changes since commit f338e77383789c0cae23ca3d48adcc5e9e137e3c:

Linux 7.0-rc4 (2026-03-15 13:52:05 -0700)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git tags/ext4_for_linus-7.0-rc6

for you to fetch changes up to 9ee29d20aab228adfb02ca93f87fb53c56c2f3af:

ext4: always drain queued discard work in ext4_mb_release() (2026-03-27 23:39:10 -0400)

----------------------------------------------------------------
Update the MAINTAINERS file to add reviewers for the ext4 file system

Add a test issue an ext4 warning (not a WARN_ON) if there are still dirty pages attached to an evicted inode.

A lot of ext4 bug fixes including:
* Fix a number of Syzkaller issues.
* Fix memory leaks on error paths.
* Replace some BUG and WARN with EFSCORRUPTED reporting.
* Fix a potential crash when disabling discard via remount followed by an immediate unmount. (Found by Sashiko)
* Fix a corner case which could lead to allocating blocks for an indirect-mapped inode block numbers > 2**32.
* Fix a race when reallocating a freed inode that could result in a deadlock.
* Fix a user-after-free in update_super_work when racing with umount.
* Fix build issues when trying to build ext4's kunit tests as a module
* Fix a bug where ext4_split_extent_zeroout() could fail to pass back an error from ext4_ext_dirty().
* Avoid allocating blocks from a corrupted block group in

     ext4_mb_find_by_goal().

* Fix a percpu_counters list corruption BUG triggered by an ext4 extents kunit.
* Fix a potetial crash caused by the fast commit flush path potentially accessing the jinode structure before it is fully initialized.
* Fix fsync(2) in no-journal mode to make sure the dirtied inode is write to storage.
* Fix a bug when in no-journal mode, when ext4 tries to avoid using recently deleted inodes, if lazy itable initialization is enabled, can lead to an unitialized inode getting skipped and triggering an e2fsck complaint.
* Fix journal credit calculation when setting an xattr when both the encryption and ea_inode feeatures are enabled.
* Fix corner cases which could result in stale xarray tags after writeback.
* Fix generic/475 failures caused by ENOSPC errors while creating a symlink when the system crashes resulting to a file system inconsistency when replaying the fast commit journal.

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Baokun Li (1):
ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths

Deepanshu Kartikey (1):
ext4: convert inline data to extents when truncate exceeds inline size

Edward Adam Davis (1):
ext4: avoid infinite loops caused by residual data

Helen Koike (1):

      ext4: reject mount if bigalloc with s_first_data_block != 0

Jan Kara (4):
ext4: fix stale xarray tags after writeback
ext4: make recently_deleted() properly work with lazy itable initialization
ext4: fix fsync(2) for nojournal mode
ext4: fix deadlock on inode reallocation

Jiayuan Chen (1):
ext4: fix use-after-free in update_super_work when racing with umount

Li Chen (1):
ext4: publish jinode after initialization

Milos Nikic (1):
jbd2: gracefully abort on checkpointing state corruptions

Ojaswin Mujoo (1):
ext4: minor fix for ext4_split_extent_zeroout()

Ritesh Harjani (IBM) (1):
ext4: kunit: extents-test: lix percpu_counters list corruption

Simon Weber (1):
ext4: fix journal credit check when setting fscrypt context

Tejas Bharambe (1):
ext4: validate p_idx bounds in ext4_ext_correct_indexes

Theodore Ts'o (3):
Update MAINTAINERS file to add reviewers for ext4
ext4: handle wraparound when searching for blocks for indirect mapped blocks
ext4: always drain queued discard work in ext4_mb_release()

Ye Bin (5):
ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal()
ext4: test if inode's all dirty pages are submitted to disk
ext4: introduce EXPORT_SYMBOL_FOR_EXT4_TEST() helper
ext4: fix mballoc-test.c is not compiled when EXT4_KUNIT_TESTS=M
ext4: fix extents-test.c is not compiled when EXT4_KUNIT_TESTS=M

Yuto Ohnuki (1):
ext4: replace BUG_ON with proper error handling in ext4_read_inline_folio

Zhang Yi (1):
ext4: do not check fast symlink during orphan recovery

Zqiang (1):
ext4: fix the might_sleep() warnings in kvfree()

hongao (1):
ext4: skip split extent recovery on corruption

 MAINTAINERS            |   7 ++-
 fs/ext4/Makefile       |   5 +-
 fs/ext4/crypto.c       |   9 +++-
 fs/ext4/ext4.h         |   6 +++
 fs/ext4/ext4_extents.h |  12 +++++
 fs/ext4/extents-test.c |  12 +++--
 fs/ext4/extents.c      |  80 +++++++++++++++++++++++++-----
 fs/ext4/fast_commit.c  |  17 ++++---
 fs/ext4/fsync.c        |  16 +++++-
 fs/ext4/ialloc.c       |   6 +++
 fs/ext4/inline.c       |  10 +++-
 fs/ext4/inode.c        |  75 ++++++++++++++++++++++------
 fs/ext4/mballoc-test.c |  81 +++++++++++++++---------------
 fs/ext4/mballoc.c      | 132 ++++++++++++++++++++++++++++++++++++++++++-------
 fs/ext4/mballoc.h      |  30 +++++++++++
 fs/ext4/page-io.c      |  10 +++-
 fs/ext4/super.c        |  37 +++++++++++---
 fs/ext4/sysfs.c        |  10 +++-
 fs/jbd2/checkpoint.c   |  15 +++++-
 19 files changed, 455 insertions(+), 115 deletions(-)