Re: [PATCH] Revert "Btrfs: increase the global block reserve estimates"

[Chris Mason <chris.mason@oracle.com>]

On Tue, Apr 10, 2012 at 12:40:08AM +0200, David Sterba wrote:
> On Mon, Apr 09, 2012 at 09:37:08AM +0800, Liu Bo wrote:
> > The whole thing is about our overcommit stuff, that is,
> > since we are not able to get _precise_ number of reservation right now, we usually
> > reserve more than what we need.
> > For this, we've done overcommit dance (thanks for Josef's work!) but it's still not
> > enough for our reservation when we still have some disk space.
> >
> > I'm ok with this revert, but since we don't use up all the reserved space in most time,
> > I assume the following can be an alternative, thanks,
> 
> Unfortunatelly the situation looks not good for 3.3 btrfs users, I'm
> looking for something we know that somehow (ie like in 3.2) works and
> are able to submit to the stable tree very soon. I'll definitelly test
> your alternative and if Chris applies it during the -rc phase we'll have
> more time to verify it or you/Josef fix it in another way.

Lets do the alternative of reverting the patch and dropping the warning.
I've been trying to find a small and simple patch for that but I don't
think that's going to happen for a stable commit.

-chris