Maintain local LogwrtResult consistently

Teach GetFlushRecPtr() to update LogwrtResult cache as performed by all other
functions in xlog.c

diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index aa905039f70b013cf5a233b6661c6671534730ea..7d5d493cdcd9a7e470190030091e07ba60e9d257 100644 (file)
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -7862,13 +7862,11 @@ GetInsertRecPtr(void)
 XLogRecPtr
 GetFlushRecPtr(void)
 {
-       XLogRecPtr      recptr;
-
        SpinLockAcquire(&XLogCtl->info_lck);
-       recptr = XLogCtl->LogwrtResult.Flush;
+       LogwrtResult = XLogCtl->LogwrtResult;
        SpinLockRelease(&XLogCtl->info_lck);
 
-       return recptr;
+       return LogwrtResult.Flush;
 }
 
 /*