git: openjdk/jdk21u-dev: master: 8354922: ZGC: Use MAP_FIXED_NOREPLACE when reserving memory

[Paul Hohensee]

Changeset: ab298c2e
Branch: master
Author:    Sergey Chernyshev <schernyshev at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2025-12-15 17:24:57 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/ab298c2ed9093026f0c57c8396f742fca9212a0e

8354922: ZGC: Use MAP_FIXED_NOREPLACE when reserving memory

Reviewed-by: stefank
Backport-of: 0f1c448ca15485cd7270cf0607acfceacdcefaff

! src/hotspot/os/linux/gc/x/xSyscall_linux.hpp
! src/hotspot/os/linux/gc/z/zSyscall_linux.hpp
! src/hotspot/os/posix/gc/x/xVirtualMemory_posix.cpp
! src/hotspot/os/posix/gc/z/zVirtualMemory_posix.cpp