linux-kernel - Re: moving affs + RDB partition support to staging?

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Message-ID: <20180506005946.GI30522@ZenIV.linux.org.uk>
Date:   Sun, 6 May 2018 01:59:51 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc:     Martin Steigerwald <martin@...htvoll.de>,
        Matthew Wilcox <willy@...radead.org>, dsterba@...e.cz,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>, linux-m68k@...ts.linux-m68k.org,
        Debian m68k <debian-68k@...ts.debian.org>
Subject: Re: moving affs + RDB partition support to staging?

On Thu, Apr 26, 2018 at 12:45:41PM +0200, John Paul Adrian Glaubitz wrote:

> Exactly. It works fine as is:
> 
> root@...ar:~> uname -a
> Linux elgar 4.16.0-rc2-amiga-16784-ga8917fc #650 Mon Mar 5 15:32:52 NZDT 2018 m68k GNU/Linux
> root@...ar:~> mount /dev/sda1 /mnt -taffs
> root@...ar:~> ls -l /mnt | head
> total 0
> drwx------ 1 root root      0 Mar 30  2001 Alt
> -rw------- 1 root root   1352 Mar 27  1997 Alt.info
> drwx------ 1 root root      0 Nov 16 14:39 C
> drwx------ 1 root root      0 Mar 27  1997 CS_Fonts
> drwx------ 1 root root      0 Mar 27  1997 Classes
> -rwx------ 1 root root   1132 Aug 14  1996 Classes.info
> drwx------ 1 root root      0 Feb 10  2004 Commodities
> -rw------- 1 root root    628 Jan 14  2002 Commodities.info
> drwx------ 1 root root      0 Apr 10  1999 CyberTools
> root@...ar:~> mount |grep affs
> /dev/sda1 on /mnt type affs (rw,relatime,bs=512,volume=:)
> root@...ar:~>
> 
> There is nothing at the moment that needs fixing.

Funny, that...  I'd been going through the damn thing for the
last week or so; open-by-fhandle/nfs export support is completely
buggered.  And as for the rest... the least said about the error
handling, the better - something like rename() hitting an IO
error (read one) can not only screw the on-disk data into the
ground, it can do seriously bad things to kernel data structures.

Is there anything resembling fsck for that thing, BTW?  Nevermind
the repairs, just the validity checks would be nice...