review request (S+) 7018056: large pages not always enabled by default

[John Coomes]

I'd appreciate reviews of the fix for 7018056 which fixes a regression
on solaris where large pages were not always enabled by default.

http://cr.openjdk.java.net/~jcoomes/7018056-large-pages/

Details are in the webrev.  The code is based on rev
2133:4e0069ff33df.

-John