linux-kernel - Re: Btrfs for mainline

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Date:	Mon, 5 Jan 2009 11:33:12 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Chris Samuel <chris@...muel.org>, linux-btrfs@...r.kernel.org,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: Btrfs for mainline

On Mon, Jan 05, 2009 at 08:18:58AM -0500, Chris Mason wrote:
> On Mon, 2009-01-05 at 21:07 +1100, Chris Samuel wrote:
> > On Sat, 3 Jan 2009 8:01:04 am Andi Kleen wrote:
> > 
> > > When it's in mainline I suspect people will start using it for that.
> > 
> > Some people don't even wait for that. ;-)
> > 
> > Seriously though, if that is a concern can I suggest taking the btrfsdev route 
> > and, if you want a real belt and braces approach, perhaps require it to have a 
> > mandatory mount option specified to successfully mount, maybe "eat_my_data" ?
> 
> I think ext4dev made more sense for ext4 because people generally expect
> ext* to be stable.  Btrfs doesn't quite have the reputation for
> stability yet, so I don't feel we need a special -dev name for it.

Old kernel versions may still get booted after brtfs has gotten a
reputation for stability.  E.g. if I move my / to brtfs in 2.6.34, then
one day need to boot back to 2.6.30 to track down some regression, the
reminder that I'm moving back to some sort of brtfs dark-ages might be
welcome.

(Not that I have particularly strong feelings about this.)

--b.

> 
> But, if Andrew/Linus prefer that unstable filesystems are tagged with
> -dev, I'm happy to do it.
> 
> -chris
> 
> 
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