Just in case someone needs it, here's a patch until it is in mainline 2.6.32. Reproducible: Always Steps to Reproduce:
Created attachment 210555 [details] cowloop-3.1-r1.ebuild
Created attachment 210556 [details, diff] 2.6.31.patch
Does not see to compile anymore and version 3.2.0.1 does not compile either. removal in 30 days
gone