[PATCH 0/3] jbd2/ext4/ocfs2: READ_ONCE for lockless jinode reads

From: Li Chen

Date: Thu Jan 29 2026 - 22:13:18 EST


This series adds READ_ONCE() for existing lockless reads of
jbd2_inode fields in jbd2 and filesystem callbacks used by ext4 and ocfs2.

This is based on Jan's suggestion in the review of the ext4 jinode
publication race fix. [1]

[1]: https://lore.kernel.org/all/4jxwogttddiaoqbstlgou5ox6zs27ngjjz5ukrxafm2z5ijxod@so4eqnykiegj/

Thanks,
Li

Li Chen (3):
jbd2: use READ_ONCE for lockless jinode reads
ext4: use READ_ONCE for lockless jinode reads
ocfs2: use READ_ONCE for lockless jinode reads

fs/ext4/inode.c | 6 ++++--
fs/ext4/super.c | 13 ++++++++-----
fs/jbd2/commit.c | 39 ++++++++++++++++++++++++++++++++-------
fs/jbd2/transaction.c | 2 +-
fs/ocfs2/journal.c | 7 +++++--
5 files changed, 50 insertions(+), 17 deletions(-)

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2.52.0