RFR: Disable ShHeapUncommit on too-large large-pages

[Aleksey Shipilev]

On 09/11/2018 10:22 AM, Roman Kennke wrote:
> Incremental:
> http://cr.openjdk.java.net/~rkennke/disable-uncommit/webrev.02.diff/
> Full:
> http://cr.openjdk.java.net/~rkennke/disable-uncommit/webrev.02/

Still looks good. I guess we could make the unconditional conservative estimate, e.g.
MAX2(SHR::region_size, os::large_page_size(), without having the special path for UseLargePages, but
this is fine too.

-Aleksey