Remove unused latch

It was left unused by commit bc971f4025, which replaced the latch
usage with a condition variable

Discussion: https://www.postgresql.org/message-id/391abe21-413e-4d91-a650-b663af49500c@iki.fi

diff --git a/src/backend/replication/walsender.c b/src/backend/replication/walsender.c
index c5f1009f3706ed0153aba4d276af3d50a920e2f3..866b69ec8555c0942df32cb7fa3f284625807b5b 100644 (file)
--- a/src/backend/replication/walsender.c
+++ b/src/backend/replication/walsender.c
@@ -2935,7 +2935,6 @@ InitWalSenderSlot(void)
                        walsnd->flushLag = -1;
                        walsnd->applyLag = -1;
                        walsnd->sync_standby_priority = 0;
-                       walsnd->latch = &MyProc->procLatch;
                        walsnd->replyTime = 0;
 
                        /*
@@ -2979,8 +2978,6 @@ WalSndKill(int code, Datum arg)
        MyWalSnd = NULL;
 
        SpinLockAcquire(&walsnd->mutex);
-       /* clear latch while holding the spinlock, so it can safely be read */
-       walsnd->latch = NULL;
        /* Mark WalSnd struct as no longer being in use. */
        walsnd->pid = 0;
        SpinLockRelease(&walsnd->mutex);

diff --git a/src/include/replication/walsender_private.h b/src/include/replication/walsender_private.h
index cf32ac2488a8d16a1a2621ab8599220611b0d214..41ac736b953af8b583ac57130b0cc9f9b5128265 100644 (file)
--- a/src/include/replication/walsender_private.h
+++ b/src/include/replication/walsender_private.h
@@ -18,7 +18,6 @@
 #include "nodes/replnodes.h"
 #include "replication/syncrep.h"
 #include "storage/condition_variable.h"
-#include "storage/latch.h"
 #include "storage/shmem.h"
 #include "storage/spin.h"
 
@@ -71,12 +70,6 @@ typedef struct WalSnd
        /* Protects shared variables in this structure. */
        slock_t         mutex;
 
-       /*
-        * Pointer to the walsender's latch. Used by backends to wake up this
-        * walsender when it has work to do. NULL if the walsender isn't active.
-        */
-       Latch      *latch;
-
        /*
         * Timestamp of the last message received from standby.
         */