[jdk21u] RFR: 8304954: SegmentedCodeCache fails when using large pages

[Tobias Hartmann]

Backport of [JDK-8304954](https://bugs.openjdk.java.net/browse/JDK-8304954). Applies cleanly.

Thanks,
Tobias

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Commit messages:
 - 8304954: SegmentedCodeCache fails when using large pages

Changes: https://git.openjdk.org/jdk21u/pull/41/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u&pr=41&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304954
  Stats: 115 lines in 3 files changed: 109 ins; 1 del; 5 mod
  Patch: https://git.openjdk.org/jdk21u/pull/41.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u.git pull/41/head:pull/41

PR: https://git.openjdk.org/jdk21u/pull/41