Re: Improve LWLock tranche name visibility across backends

Nathan Bossart <nathandbossart@gmail.com>

From: Nathan Bossart <nathandbossart@gmail.com>
To: Sami Imseih <samimseih@gmail.com>
Cc: Alexander Lakhin <exclusion@gmail.com>, Rahila Syed <rahilasyed90@gmail.com>, Bertrand Drouvot <bertranddrouvot.pg@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Andres Freund <andres@anarazel.de>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2025-11-12T21:00:02Z
Lists: pgsql-hackers
On Tue, Nov 11, 2025 at 01:50:20PM -0600, Sami Imseih wrote:
> LGTM.

Committed, thanks for reviewing.

-- 
nathan



Commits

  1. test_dsa: Avoid leaking LWLock tranches.

  2. Teach DSM registry to ERROR if attaching to an uninitialized entry.

  3. Add a test harness for the LWLock tranche code.

  4. Revert recent change to RequestNamedLWLockTranche().

  5. Move dynamically-allocated LWLock tranche names to shared memory.

  6. Prepare DSM registry for upcoming changes to LWLock tranche names.

  7. Add GetNamedDSA() and GetNamedDSHash().