[patch 2/2] xfs: use scalable vmap API

[Christoph Hellwig]

On Mon, Jan 25, 2010 at 11:37:46PM +1100, Nick Piggin wrote:
> On Mon, Jan 25, 2010 at 07:33:09PM +1100, Nick Piggin wrote:
> > > Any easy way to get them?  Sorry, not uptodate on your new vmalloc
> > > implementation anymore.
> > 
> > Let me try writing a few (tested) patches here first that I can send you.
> 
> Well is it easy to reproduce the vmap failure? Here is a better tested
> patch if you can try it. It fixes a couple of bugs and does some purging
> of fragmented blocks.
> 
> If it does not help, can you tell me how many CPUs in your system?

The simplest one to reproduce it is a 1 cpu kvm virtual machine.  Will
give your patch a try ASAP - while it's easy to reproduce it takes some
time as I appears only when doing a second xfstests run after a first
finished fine, which makes it look like a leak to me.