8017629: G1: UseSHM in combination with a G1HeapRegionSize > os::large_page_size() falls back to use small pages Reviewed-by: pliden, sjohanss, stuefe

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
^.jib/
.DS_Store
.metadata/
.recommenders/