hg: jdk/jdk10: 8195094: Fix type-O in "8159422: Very high Concurrent Mark mark stack contention"

[thomas.schatzl at oracle.com]

Changeset: a53f30471b2d
Author:    goetz
Date:      2018-01-16 07:48 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk10/rev/a53f30471b2d

8195094: Fix type-O in "8159422: Very high Concurrent Mark mark stack contention"
Reviewed-by: tschatzl, dholmes
Contributed-by: arno.zeller at sap.com

! src/hotspot/share/memory/allocation.inline.hpp