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Ensure concurrent rustc instances in the same process correctly lock the session dir - #162602

Merged

rust-bors[bot] merged 5 commits into

rust-lang:mainfrom

bjorn3:safer_fcntl_fallback

Sep 18, 2026

Merged

Ensure concurrent rustc instances in the same process correctly lock the session dir#162602
rust-bors[bot] merged 5 commits into
rust-lang:mainfrom
bjorn3:safer_fcntl_fallback

Commits on Sep 16, 2026
- Pass File to Fallback::lock
  bjorn3
  committed
  b4beb1e
- Have a separate copy of the flock code for rustdoc
  bjorn3
  committed
  0143ce1
- Remove wait argument from Lock::new
  bjorn3
  committed
  435b07d
- Introduce a global lock registry for the fcntl lock fallback
  bjorn3
  committed
  de50895
Commits on Sep 17, 2026
- Use HashMap::entry
  bjorn3
  committed
  2be177e