On Sun, Aug 19, 2018 at 04:31:55PM -0400, Ryan Kavanagh wrote:
> On Mon, Jul 31, 2017 at 05:50:44PM +0200, Adam Borowski wrote:
> > > btrfs-progs (4.12-1) unstable; urgency=medium
> > >   [ Nicholas D Steeves ]
> > >   * Drop btrfs-convert (Closes: #824895, #854489)
> >
> > Yes, there are some caveats, but the man page discusses them at length.
> 
> If you decide to continue to exclude btrfs-convert from btrfs-progs,
> please also drop the manpage:
> 
> rak@zeta:~$ dpkg -S btrfs-convert
> btrfs-progs: /usr/share/man/man8/btrfs-convert.8.gz
> 
> It took me a bit of searching to figure out why there was a manpage but
> no associated binary.

Ryan, You're 100% right.  Duncan, on linux-btrfs, also suggested the
possibility of shipping a dummy script, and it would be easier to
maintain one of those (eg: like fsck.btrfs) than to rebase a patch
with every release.  Please ping me if references to btrfs-convert
aren't patched out by mid-October.  Dmitri, I'm guessing you'll prefer
the dummy script?

Re: upstream btrfs-convert status, there was recently a thread on
linux-btrfs@vger on this topic.  The portion of the wiki page that
said it hasn't been tested much since linux-4.0 was pulled, but the
official status was not clarified.  I specifically asked if SUSE
support btrfs-convert for its paying customers, and a few other
question...no reply.

Currently btrfs-convert will mysteriously fail if ever it cannot
allocate a large enough empty extent of contiguous free space.  IIRC
upstream patches were submitted to output better error messages if
this occurs.

Cheers,
Nicholas

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