Horton

Convert SLRUs to use the new shmem allocation functions

Heikki Linnakangas <heikki.linnakangas@iki.fi>

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Commit: 2e0943a8597e1eeaec184465ba8b1f2f453a69e0
Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
Date: 2026-04-05T23:13:02Z
Releases: 19 (unreleased) 
Convert SLRUs to use the new shmem allocation functions

I replaced the old SimpleLruInit() function without a backwards
compatibility wrapper, because few extensions define their own SLRUs.

Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Reviewed-by: Matthias van de Meent <boekewurm+postgres@gmail.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://www.postgresql.org/message-id/CAExHW5vM1bneLYfg0wGeAa=52UiJ3z4vKd3AJ72X8Fw6k3KKrg@mail.gmail.com

Files

PathChange+/−
src/backend/access/transam/clog.c modified +35 −18
src/backend/access/transam/commit_ts.c modified +44 −41
src/backend/access/transam/multixact.c modified +72 −64
src/backend/access/transam/slru.c modified +193 −173
src/backend/access/transam/subtrans.c modified +37 −20
src/backend/commands/async.c modified +56 −59
src/backend/storage/ipc/ipci.c modified +0 −16
src/backend/storage/ipc/shmem.c modified +7 −2
src/backend/storage/lmgr/predicate.c modified +111 −162
src/backend/utils/activity/pgstat_slru.c modified +1 −0
src/include/access/clog.h modified +0 −2
src/include/access/commit_ts.h modified +0 −2
src/include/access/multixact.h modified +0 −2
src/include/access/slru.h modified +77 −37
src/include/access/subtrans.h modified +0 −2
src/include/commands/async.h modified +0 −3
src/include/storage/predicate.h modified +0 −5
src/include/storage/shmem_internal.h modified +1 −0
src/include/storage/subsystemlist.h modified +10 −0
src/test/modules/test_slru/test_slru.c modified +43 −63
src/tools/pgindent/typedefs.list modified +2 −2

Discussion