Re: [PATCH 5.10 387/770] fanotify: Allow users to request FAN_FS_ERROR events

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> On Jul 23, 2024, at 5:29 AM, Jan Kara <jack@xxxxxxx> wrote:
> 
> On Tue 23-07-24 12:36:27, Ajay Kaher wrote:
>>> [ Upstream commit 9709bd548f11a092d124698118013f66e1740f9b ]
>>> 
>>> Wire up the FAN_FS_ERROR event in the fanotify_mark syscall, allowing
>>> user space to request the monitoring of FAN_FS_ERROR events.
>>> 
>>> These events are limited to filesystem marks, so check it is the
>>> case in the syscall handler.
>> 
>> Greg,
>> 
>> Without 9709bd548f11 in v5.10.y skips LTP fanotify22 test case, as: 
>> fanotify22.c:312: TCONF: FAN_FS_ERROR not supported in kernel
>> 
>> With 9709bd548f11 in v5.10.220, LTP fanotify22 is failing because of
>> timeout as no notification. To fix need to merge following two upstream
>> commit to v5.10:
>> 
>> 124e7c61deb27d758df5ec0521c36cf08d417f7a:
>> 0001-ext4_fix_error_code_saved_on_super_block_during_file_system.patch
>> https://lore.kernel.org/stable/1721717240-8786-1-git-send-email-ajay.kaher@xxxxxxxxxxxx/T/#mf76930487697d8c1383ed5d21678fe504e8e2305
>> 
>> 9a089b21f79b47eed240d4da7ea0d049de7c9b4d:
>> 0001-ext4_Send_notifications_on_error.patch
>> Link: https://lore.kernel.org/stable/1721717240-8786-1-git-send-email-ajay.kaher@xxxxxxxxxxxx/T/#md1be98e0ecafe4f92d7b61c048e15bcf286cbd53 
> 
> I know Chuck has been backporting the huge pile of fsnotify changes for
> stable and he was running LTP so I'm a bit curious if he saw the fanotify22
> failure as well.

Fwiw, I didn't see any new failures for either 5.10.y or 5.15.y.


> The reason for the test failure seems to be that the
> combination of features now present in stable has never been upstream which
> confuses the test. As such I'm not sure if backporting more features to
> stable is warranted just to fix a broken LTP test... But given the huge
> pile Chuck has backported already I'm not strongly opposed to backporting a
> few more, there's just a question where does this stop :)
> 
> Honza
> 
> -- 
> Jan Kara <jack@xxxxxxxx>
> SUSE Labs, CR


--
Chuck Lever






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