linux-kernel - Re: API break, sysfs "capability" file

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Message-ID: <1bf9be9a-4d05-4d3b-ab76-13a825cd1758@leemhuis.info>
Date: Tue, 16 Apr 2024 11:26:40 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>
Cc: Keith Busch <kbusch@...nel.org>,
 Linux regressions mailing list <regressions@...ts.linux.dev>,
 linux-block@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
 Lennart Poettering <mzxreary@...inter.de>
Subject: Re: API break, sysfs "capability" file

On 09.04.24 17:17, Jens Axboe wrote:
> On 4/9/24 8:15 AM, Christoph Hellwig wrote:
>> On Tue, Apr 09, 2024 at 10:19:09AM +0200, Lennart Poettering wrote:
>>> All I am looking for is a very simple test that returns me a boolean:
>>> is there kernel-level partition scanning enabled on this device or
>>> not.
>>
>> And we can add a trivial sysfs attribute for that.
> 
> And I think we should. I don't know what was being smoked adding a sysfs
> interface that exposed internal flag values - and honestly what was
> being smoked to rely on that, but I think it's fair to say that the
> majority of the fuckup here is on the kernel side.
>  
>> At this point we're just better off with a clean new interface.
>> And you can use the old hack for < 5.15 if you care strongly enough
>> or just talk distros into backporting it to make their lives easier.
> 
> We should arguably just stable mark the patch adding the above simple
> interface.

I might have missed something, but it seems nothing has happened since a
week. Sure, this is hardly a new regression, so it's not that urgent;
still it would be good to see this fixed rather sooner than later after
all the publicity this got. So allow me to quickly ask:

Is anyone (Christoph?) already working on such a patch or is it at least
somewhat high on somebody's todo list?

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

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