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Remove --disable-spinlocks.

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A later change will require atomic support, so it wouldn't make sense
for a hypothetical new system not to be able to implement spinlocks.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> (concept, not the patch)
Reviewed-by: Andres Freund <andres@anarazel.de> (concept, not the patch)
Discussion: https://postgr.es/m/3351991.1697728588%40sss.pgh.pa.us
This commit is contained in:
Thomas Munro
2024-07-30 21:45:01 +12:00
parent 1330843bb7
commit e25626677f
20 changed files with 13 additions and 486 deletions
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8
src/backend/postmaster/launch_backend.c
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@@ -108,9 +108,7 @@ typedef struct
#ifdef USE_INJECTION_POINTS
struct InjectionPointsCtl *ActiveInjectionPoints;
#endif
#ifndef HAVE_SPINLOCKS
PGSemaphore *SpinlockSemaArray;
#endif
int NamedLWLockTrancheRequests;
NamedLWLockTranche *NamedLWLockTrancheArray;
LWLockPadded *MainLWLockArray;
@@ -724,9 +722,6 @@ save_backend_variables(BackendParameters *param, ClientSocket *client_sock,
param->ActiveInjectionPoints = ActiveInjectionPoints;
#endif
#ifndef HAVE_SPINLOCKS
param->SpinlockSemaArray = SpinlockSemaArray;
#endif
param->NamedLWLockTrancheRequests = NamedLWLockTrancheRequests;
param->NamedLWLockTrancheArray = NamedLWLockTrancheArray;
param->MainLWLockArray = MainLWLockArray;
@@ -986,9 +981,6 @@ restore_backend_variables(BackendParameters *param)
ActiveInjectionPoints = param->ActiveInjectionPoints;
#endif
#ifndef HAVE_SPINLOCKS
SpinlockSemaArray = param->SpinlockSemaArray;
#endif
NamedLWLockTrancheRequests = param->NamedLWLockTrancheRequests;
NamedLWLockTrancheArray = param->NamedLWLockTrancheArray;
MainLWLockArray = param->MainLWLockArray;