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gerrit.omnirom.org / android_packages_modules_Virtualization / 4b7f959f45c4d87aef97cda38ac1fb9e49b4c8a4
commit4b7f959f45c4d87aef97cda38ac1fb9e49b4c8a4[log] [tgz]
authorVictor Hsieh <victorhsieh@google.com>Tue Mar 08 20:13:20 2022 +0000
committerVictor Hsieh <victorhsieh@google.com>Wed Mar 09 17:17:35 2022 +0000
tree90ccce84da45164bc155746039ab36436cd32131
parent03ef64b4827277ef0478c3a82a441c982e4c20c9 [diff]
Use AtomicU64 for handle_ref_count

This allows us to use a read lock instead of a write on `lookup`.

Intriguingly, the corresponding call to decrease the count in `forget`
does not need a lock, thanks to Rust. So this should be a net
performance gain.

Also, panic is a handle's reference count is about to overflow.

Bug: 220386264
Test: atest AuthFsHostTest
Change-Id: Icc3ba1a3fe92431837d6cffb470688ae0883a355
1 file changed
tree: 90ccce84da45164bc155746039ab36436cd32131
  1. .prebuilt_info/
  2. apex/
  3. apkdmverity/
  4. authfs/
  5. compos/
  6. demo/
  7. docs/
  8. javalib/
  9. launcher/
  10. libs/
  11. microdroid/
  12. microdroid_manager/
  13. pvmfw/
  14. tests/
  15. virtualizationservice/
  16. vm/
  17. zipfuse/
  18. rustfmt.toml ⇨ ../../../build/soong/scripts/rustfmt.toml
  19. .clang-format
  20. .gitignore
  21. Android.bp
  22. OWNERS
  23. PREUPLOAD.cfg
  24. README.md
  25. TEST_MAPPING
README.md

Virtualization

This repository contains userspace services related to running virtual machines on Android, especially protected virtual machines. See the getting started documentation and Microdroid README for more information.