git: openjdk/jdk16: 8259380: Correct pretouch chunk size to cap with actual page size

[Thomas Schatzl]

Changeset: 67e1b639
Author:    Patrick Zhang <qpzhang at openjdk.org>
Committer: Thomas Schatzl <tschatzl at openjdk.org>
Date:      2021-01-12 10:10:48 +0000
URL:       https://git.openjdk.java.net/jdk16/commit/67e1b639

8259380: Correct pretouch chunk size to cap with actual page size

Reviewed-by: tschatzl, sjohanss

! src/hotspot/share/gc/shared/pretouchTask.cpp