[Unionfs] Volume full -> Filesystem full

[Josef Sipek]

On Mon, Aug 20, 2007 at 11:52:01PM +0200, Simon Sasburg wrote:
> > A long while back there were patches floating around to make unionfs merge
> > space as well, but those were for the (now ancient) 1.x code base.
> 
> I've actually been working a bit on some new patches to do this
> (spreading new files to be created on the branch with the most free
> space), and they were working quite well for some time too.
> 
> Recently i had some stability problems though, so i went back to plain unionfs.
> This didn't solve the problems though, so it may not have been my
> patches that caused them.

Ahh...it always feels good to blame someone else - especially if it really
is their fault :)

> Another problem with my patches was that they were a bit hacky in that
> they just disabled the whiteout/opaque dir markers, cause they caused
> some problems with the spreading of newly created files. (and for my
> use case i didn't need them anyway :-p)

Makes sense.

> I doubt my patches in their current state are useful to anyone but me. :-)
> I will probably look into this again sometime, but i can't say for
> sure when that will be. It might be a good idea to see how to make
> this new behaviour configurable so it plays nice without breaking the
> rest of unionfs, but i hadn't gotten that far yet...

Compile-time config should be pretty easy. Ugly, but easy. On the other
hand, if you want mount-time config...ouch :)

Either way, this kind of functionality is not something that should be in
unionfs proper :)

Jeff.

-- 
If I have trouble installing Linux, something is wrong. Very wrong.
		- Linus Torvalds