f2fs: avoid false shutdown fserror reports

Browse source

F2FS records image errors and checkpoint-stop reasons through the same
s_error_work worker.  The ordinary f2fs_handle_error() path only updates
s_errors, but the worker still calls fserror_report_shutdown()
unconditionally after committing the superblock.

As a result, a metadata corruption report can be followed by a synthetic
FAN_FS_ERROR event with ESHUTDOWN and an invalid superblock file handle,
even though no stop reason was recorded.

Track whether save_stop_reason() actually changed the stop_reason array
and only report the shutdown fserror for that case.  Pure s_errors updates
still commit the superblock, but no longer generate a false shutdown event.

Fixes: 50faed607d32 ("f2fs: support to report fserror")
Cc: stable@kernel.org
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Wenjie Qi <qiwenjie@xiaomi.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

...

This commit is contained in:

Wenjie Qi 2026-05-21 18:37:48 +08:00 • committed by Jaegeuk Kim

parent 5073c66a96

commit 484c84ecc1

2 changed files with 9 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

fs/f2fs/f2fs.h

View file

9

fs/f2fs/super.c

View file