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Date:   Mon, 25 Sep 2023 02:43:34 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Dave Chinner <david@fromorbit.com>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Jan Kara <jack@suse.cz>, Theodore Ts'o <tytso@mit.edu>,
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        Eric Sandeen <sandeen@sandeen.net>,
        Steven Rostedt <rostedt@goodmis.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Christoph Hellwig <hch@infradead.org>, ksummit@lists.linux.dev,
        linux-fsdevel@vger.kernel.org
Subject: Re: [MAINTAINERS/KERNEL SUMMIT] Trust and maintenance of file systems
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On Tue, Sep 19, 2023 at 02:56:45PM +1000, Dave Chinner wrote:
> That's the best argument for removing all these old filesystems from
> the kernel that anyone has made so far.
> 
> As it is, I'm really failing to see how it can be argued
> successfully that we can remove ia64 support because it has no users
> and is a maintenance burden on kernel developers, but that same
> argument doesn't appear to hold any weight when applied to a
> filesystem.
> 
> What makes filesystems so special we can't end-of-life them like
> other kernel code?

Yepp.  And I don't want to remove them against major objections.  If
we even have a single user that actually signs up to do basic QA
I think it's fair game to keep it.  Similar to how we deal with most
drivers (except for some subsystems like net that seemed to be a lot
more aggressive in their removal schedules).