Horton

Use ShmemInitStruct to allocate lwlock.c's shared memory

Heikki Linnakangas <heikki.linnakangas@iki.fi>

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Commit: 30d432502bf42343ec0f9ad599625cde0cb38e57
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2026-03-26T21:51:41Z
Releases: 19 (unreleased) 
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@gmail.com>
Discussion: https://www.postgresql.org/message-id/47aaf57e-1b7b-4e12-bda2-0316081ff50e@iki.fi

Files

PathChange+/−
src/backend/postmaster/launch_backend.c modified +0 −6
src/backend/storage/ipc/ipci.c modified +2 −2
src/backend/storage/lmgr/lwlock.c modified +22 −10
src/include/storage/lwlock.h modified +1 −6

Discussion