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Message-ID: <20251001025400.GA333371@mit.edu>
Date: Tue, 30 Sep 2025 22:54:00 -0400
From: "Theodore Ts'o" <tytso@....edu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Linux Kernel Developers List <linux-kernel@...r.kernel.org>,
Ext4 Developers List <linux-ext4@...r.kernel.org>
Subject: [GIT PULL] ext4 updates for 6.18-rc1
The following changes since commit b320789d6883cc00ac78ce83bccbfe7ed58afcf0:
Linux 6.17-rc4 (2025-08-31 15:33:07 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git tags/ext4_for_linus-6.18-rc1
for you to fetch changes up to acf943e9768ec9d9be80982ca0ebc4bfd6b7631e:
ext4: fix checks for orphan inodes (2025-09-26 08:36:08 -0400)
----------------------------------------------------------------
New ext4 features:
* Add support so tune2fs can modify/update the superblock using an
ioctl, without needing write access to the block device.
* Add support for 32-bit reserved uid's and gid's.
Bug fixes:
* Fix potential warnings and other failures caused by corrupted / fuzzed
file systems.
* Fail unaligned direct I/O write with EINVAL instead of silently
falling back to buffered I/O
* Correectly handle fsmap queries for metadata mappings
* Avoid journal stalls caused by writeback throttling
* Add some missing GFP_NOFAIL flags to avoid potential deadlocks
under extremem memory pressure
Cleanups:
* Remove obsolete EXT3 Kconfigs
----------------------------------------------------------------
Ahmet Eray Karadag (1):
ext4: guard against EA inode refcount underflow in xattr update
Baokun Li (2):
ext4: add ext4_sb_bread_nofail() helper function for ext4_free_branches()
ext4: fix potential null deref in ext4_mb_init()
Deepanshu Kartikey (1):
ext4: validate ea_ino and size in check_xattrs
Jan Kara (3):
ext4: fail unaligned direct IO write with EINVAL
ext4: verify orphan file size is not too big
ext4: fix checks for orphan inodes
Julian Sun (2):
jbd2: increase IO priority of checkpoint
ext4: increase IO priority of fastcommit
Lukas Bulwahn (1):
ext4: remove obsolete EXT3 config options
Ojaswin Mujoo (1):
ext4: correctly handle queries for metadata mappings
Theodore Ts'o (3):
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
ext4: add support for 32-bit default reserved uid and gid values
ext4: implemet new ioctls to set and get superblock parameters
Xichao Zhao (1):
ext4: replace min/max nesting with clamp()
Yongjian Sun (1):
ext4: increase i_disksize to offset + len in ext4_update_disksize_before_punch()
Zhang Yi (1):
ext4: fix an off-by-one issue during moving extents
chuguangqing (1):
fs: ext4: change GFP_KERNEL to GFP_NOFS to avoid deadlock
fs/ext4/Kconfig | 27 -------
fs/ext4/ext4.h | 28 ++++++-
fs/ext4/fast_commit.c | 2 +-
fs/ext4/file.c | 2 +-
fs/ext4/fsmap.c | 14 ++--
fs/ext4/indirect.c | 2 +-
fs/ext4/inode.c | 47 +++---------
fs/ext4/ioctl.c | 312 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
fs/ext4/mballoc.c | 10 +++
fs/ext4/mmp.c | 6 +-
fs/ext4/move_extent.c | 2 +-
fs/ext4/orphan.c | 19 +++--
fs/ext4/super.c | 38 +++++-----
fs/ext4/xattr.c | 21 ++++--
fs/jbd2/checkpoint.c | 2 +-
include/uapi/linux/ext4.h | 53 +++++++++++++
16 files changed, 467 insertions(+), 118 deletions(-)
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