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Do not create DSM segment for wal_redo_postgres (#9793)

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## Problem

See  https://github.com/neondatabase/neon/issues/9738

## Summary of changes

Do not create DSM segment for wal_redo Postgres

---------

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>
This commit is contained in:
Konstantin Knizhnik
2024-11-19 11:56:40 +02:00
committed by GitHub
parent 982cb1c15d
commit c9acd214ae
1 changed files with 0 additions and 8 deletions
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8
pgxn/neon_walredo/walredoproc.c
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@@ -453,7 +453,6 @@ WalRedoMain(int argc, char *argv[])
static void
CreateFakeSharedMemoryAndSemaphores(void)
{
PGShmemHeader *shim = NULL;
PGShmemHeader *hdr;
Size size;
int numSemas;
@@ -486,7 +485,6 @@ CreateFakeSharedMemoryAndSemaphores(void)
hdr->totalsize = size;
hdr->freeoffset = MAXALIGN(sizeof(PGShmemHeader));
shim = hdr;
UsedShmemSegAddr = hdr;
UsedShmemSegID = (unsigned long) 42; /* not relevant for non-shared memory */
}
@@ -523,8 +521,6 @@ CreateFakeSharedMemoryAndSemaphores(void)
*/
InitShmemIndex();
dsm_shmem_init();
/*
* Set up xlog, clog, and buffers
*/
@@ -599,10 +595,6 @@ CreateFakeSharedMemoryAndSemaphores(void)
ShmemBackendArrayAllocation();
#endif
/* Initialize dynamic shared memory facilities. */
if (!IsUnderPostmaster)
dsm_postmaster_startup(shim);
/*
* Now give loadable modules a chance to set up their shmem allocations
*/