Re: [PATCH] f2fs: avoid false shutdown fserror reports

[Chao Yu <chao@kernel.org>]

On 5/21/26 09:51, Wenjie Qi wrote:
> 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.
> 

Cc: stable@kernel.org

> Fixes: 50faed607d32 ("f2fs: support to report fserror")
> Signed-off-by: Wenjie Qi <qiwenjie@xiaomi.com>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,