git: openjdk/jdk17u: master: 8276205: Shenandoah: CodeCache_lock should always be held for initializing code cache iteration

[Zhengyu Gu]

Changeset: f1a8a22f
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2021-11-17 14:30:16 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/f1a8a22f54438ede20d73297b19b9f95cfc3ad21

8276205: Shenandoah: CodeCache_lock should always be held for initializing code cache iteration

Reviewed-by: shade
Backport-of: 99b7b95e014da6e491ba7adfd21de53d6ae166fe

! src/hotspot/share/gc/shenandoah/shenandoahCodeRoots.cpp
! src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp