Suppress some unused-variable complaints in new LOCK_DEBUG code.

Jeff Janes

diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index 7ca8dc0007bd2d77277e7de1ab919b2592f87819..5813e71da0279524237644d3e6d2a85b6ce5115d 100644 (file)
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -207,7 +207,8 @@ LOG_LWDEBUG(const char *where, LWLock *lock, const char *msg)
        ereport(LOG,
                (errhidestmt(true),
                 errhidecontext(true),
-                errmsg("%s(%s %d): %s", where, T_NAME(lock), T_ID(lock), msg)));
+                errmsg("%s(%s %d): %s", where,
+                       T_NAME(lock), T_ID(lock), msg)));
    }
 }
 
@@ -879,7 +880,7 @@ LWLockDequeueSelf(LWLock *lock)
 #ifdef LOCK_DEBUG
    {
        /* not waiting anymore */
-       uint32 nwaiters = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
+       uint32 nwaiters PG_USED_FOR_ASSERTS_ONLY = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
        Assert(nwaiters < MAX_BACKENDS);
    }
 #endif
@@ -1045,7 +1046,7 @@ LWLockAcquireCommon(LWLock *lock, LWLockMode mode, uint64 *valptr, uint64 val)
 #ifdef LOCK_DEBUG
        {
            /* not waiting anymore */
-           uint32 nwaiters = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
+           uint32 nwaiters PG_USED_FOR_ASSERTS_ONLY = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
            Assert(nwaiters < MAX_BACKENDS);
        }
 #endif
@@ -1202,7 +1203,7 @@ LWLockAcquireOrWait(LWLock *lock, LWLockMode mode)
 #ifdef LOCK_DEBUG
            {
                /* not waiting anymore */
-               uint32 nwaiters = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
+               uint32 nwaiters PG_USED_FOR_ASSERTS_ONLY = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
                Assert(nwaiters < MAX_BACKENDS);
            }
 #endif
@@ -1403,7 +1404,7 @@ LWLockWaitForVar(LWLock *lock, uint64 *valptr, uint64 oldval, uint64 *newval)
 #ifdef LOCK_DEBUG
        {
            /* not waiting anymore */
-           uint32 nwaiters = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
+           uint32 nwaiters PG_USED_FOR_ASSERTS_ONLY = pg_atomic_fetch_sub_u32(&lock->nwaiters, 1);
            Assert(nwaiters < MAX_BACKENDS);
        }
 #endif