[t:2692] Restore "write_log_files" check to fsync log on checkpoints

git-svn-id: file:///svn/toku/tokudb@20884 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/logger.c

@@ -475,13 +475,15 @@ int toku_logger_fsync (TOKULOGGER logger)
 
 int
 toku_logger_fsync_if_lsn_not_fsynced (TOKULOGGER logger, LSN lsn) {
-    int r;
-    if (logger->is_panicked) return EINVAL;
-    r = ml_lock(&logger->input_lock);        assert(r==0);
-    logger->input_lock_ctr++;
-    r = toku_logger_maybe_fsync(logger, lsn, TRUE);
-    if (r!=0) {
-	toku_logger_panic(logger, r);
+    int r = 0;
+    if (logger->is_panicked) r = EINVAL;
+    else if (logger->write_log_files) {
+        r = ml_lock(&logger->input_lock);        assert(r==0);
+        logger->input_lock_ctr++;
+        r = toku_logger_maybe_fsync(logger, lsn, TRUE);
+        if (r!=0) {
+            toku_logger_panic(logger, r);
+        }
     }
     return r;
 }