Remove dummy_spinlock

It's been unused since 1b468a131bd2 (2015).

diff --git a/src/backend/main/main.c b/src/backend/main/main.c
index c32a74aca41c180de730c092198c9566e06f91e8..51ffb8e773b8e7d9a18ae3e7dffc490eb72aba2b 100644 (file)
--- a/src/backend/main/main.c
+++ b/src/backend/main/main.c
@@ -288,12 +288,6 @@ startup_hacks(const char *progname)
        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
    }
 #endif                         /* WIN32 */
-
-   /*
-    * Initialize dummy_spinlock, in case we are on a platform where we have
-    * to use the fallback implementation of pg_memory_barrier().
-    */
-   SpinLockInit(&dummy_spinlock);
 }
 
 

diff --git a/src/backend/storage/lmgr/s_lock.c b/src/backend/storage/lmgr/s_lock.c
index 8437b1307364a185b494aa9cf3246a7837f424cc..9b389d9951248df11e83fe645db993a823571986 100644 (file)
--- a/src/backend/storage/lmgr/s_lock.c
+++ b/src/backend/storage/lmgr/s_lock.c
@@ -70,8 +70,6 @@ static uint32 local_my_wait_event_info;
 uint32    *my_wait_event_info = &local_my_wait_event_info;
 #endif
 
-slock_t        dummy_spinlock;
-
 static int spins_per_delay = DEFAULT_SPINS_PER_DELAY;
 
 

diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h
index aa06e49da26c3a1800371b7c8050129849471ece..69582f4ae71841cde2e3216520f8790fde1ab543 100644 (file)
--- a/src/include/storage/s_lock.h
+++ b/src/include/storage/s_lock.h
@@ -821,7 +821,6 @@ extern int  tas(volatile slock_t *lock);        /* in port/.../tas.s, or
 #define TAS_SPIN(lock) TAS(lock)
 #endif  /* TAS_SPIN */
 
-extern PGDLLIMPORT slock_t dummy_spinlock;
 
 /*
  * Platform-independent out-of-line support routines