git: openjdk/loom: fibers: 3 new changesets

[duke]

Changeset: fe4daa00
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-12-01 15:24:31 +0000
URL:       https://git.openjdk.java.net/loom/commit/fe4daa00

Use JRT_BLOCK

! src/hotspot/share/runtime/continuation.cpp

Changeset: e69eac2c
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-12-01 17:01:05 +0000
URL:       https://git.openjdk.java.net/loom/commit/e69eac2c

Improve interaction with concurrent stack processing

! src/hotspot/share/runtime/continuation.cpp

Changeset: bb1a9b9c
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-12-01 17:01:33 +0000
URL:       https://git.openjdk.java.net/loom/commit/bb1a9b9c

-

! src/hotspot/cpu/x86/continuation_x86.inline.hpp
! src/hotspot/share/runtime/continuation.cpp