[jdk17u-dev] RFR: 8329134: Reconsider TLAB zapping [v2]

[Xiaolong Peng]

> I'd like to backport [JDK-8329134](https://bugs.openjdk.org/browse/JDK-8329134) to jdk17

Xiaolong Peng has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into JDK-8329134
 - Backport 5698f7ad29c939b7e52882ace575dd7113bf41de

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/2510/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/2510/files/6de99a39..2472b08b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2510&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2510&range=00-01

  Stats: 3368 lines in 88 files changed: 1750 ins; 1179 del; 439 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2510.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2510/head:pull/2510

PR: https://git.openjdk.org/jdk17u-dev/pull/2510