pgsql: Use ShmemInitStruct to allocate lwlock.c's shared memory

From: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Use ShmemInitStruct to allocate lwlock.c's shared memory
Date: 2026-03-26 22:03:58
Message-ID: E1w5so1-001bOK-1H@gemulon.postgresql.org
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Use ShmemInitStruct to allocate lwlock.c's shared memory

It's nice to have them show up in pg_shmem_allocations like all other
shmem areas. ShmemInitStruct() depends on ShmemIndexLock, but only
after postmaster startup.

Reviewed-by: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Discussion: https://www.postgresql.org/message-id/47aaf57e-1b7b-4e12-bda2-0316081ff50e@iki.fi

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/30d432502bf42343ec0f9ad599625cde0cb38e57

Modified Files
--------------
src/backend/postmaster/launch_backend.c | 6 ------
src/backend/storage/ipc/ipci.c | 4 ++--
src/backend/storage/lmgr/lwlock.c | 32 ++++++++++++++++++++++----------
src/include/storage/lwlock.h | 7 +------
4 files changed, 25 insertions(+), 24 deletions(-)

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