linux-kernel - Re: [RFC PATCH v2 00/10] Add configurable block device LED triggers

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Date:   Wed, 11 Aug 2021 08:26:42 +0200
From:   Christoph Hellwig <hch@....de>
To:     Ian Pilcher <arequipeno@...il.com>
Cc:     Marek Behún <kabel@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>, hch@....de,
        pali@...nel.org, linux-block@...r.kernel.org,
        linux-leds@...r.kernel.org, axboe@...nel.dk, pavel@....cz,
        linux-kernel@...r.kernel.org, kernelnewbies@...nelnewbies.org
Subject: Re: [RFC PATCH v2 00/10] Add configurable block device LED triggers

On Mon, Aug 09, 2021 at 06:50:44PM -0500, Ian Pilcher wrote:
> On 8/9/21 5:43 PM, Marek Behún wrote:
>> I confess that I am not very familiar with internal blkdev API.
>
> It's mainly a matter of symbol visibility.  See this thread from a few
> months ago:
>
>   https://www.spinics.net/lists/linux-leds/msg18244.html
>
> Now ... my code currently lives in block/, so there isn't actually
> anything technically preventing it from iterating through the block
> devices.
>
> The reactions to Enzo's patch (which you can see in that thread) make me
> think that anything that iterates through all block devices is likely to
> be rejected, but maybe I'm reading too much into it.

I think the main issue with this series is that it adds a shitload of
code and a hook in the absolute I/O fastpath for fricking blinkenlights.
I don't think it is even worth wasting time on something this ridiculous.