On Tue, Jul 19, 2011 at 08:37:43AM -0700, Dave Hansen wrote:
> This implementation has some real show-stopper things in it, like its
> own LRU.  But, the concept seems interesting at least.

So if you care about it implement it sanely and not like a monkey on
crack would do it.  Having a madvice flag to allow reclaiming tmpfs
pages, and using the normal VM infrastructure sounds like a perfectly
fine feature.