Withdrawn: JDK-8269651: ZGC: Optimize away gc locker in mark start

[Hamlin Li]

On Wed, 30 Jun 2021 11:58:56 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Currently, ZGC involves gc locker in mark-start and relocate-start.
> It seems gc locker in mark-start is not necessary anymore.
> This is to remove this unnecessary(??) gc locker before further optimization is discussed.

This pull request has been closed without being integrated.

-------------

PR: https://git.openjdk.java.net/jdk/pull/4638