diff --git a/src/gausskernel/storage/buffer/bufmgr.cpp b/src/gausskernel/storage/buffer/bufmgr.cpp
index 5e96bec661be7edf43bcda798c43995bc0f88cb5..3f959e22eee662040d92e5e5abb6e669c5899687 100644
--- a/src/gausskernel/storage/buffer/bufmgr.cpp
+++ b/src/gausskernel/storage/buffer/bufmgr.cpp
@@ -4141,8 +4141,14 @@ bool SyncFlushOneBuffer(int buf_id, bool get_condition_lock)
      * buffer is clean by the time we've locked it.)
      */
     PinBuffer_Locked(buf_desc);
-
-    if ((dw_enabled() || ENABLE_DSS) && get_condition_lock) {
+    
+    /*
+     * To past the fastcheck_single_mot, we have to save LWLockAcquire.
+     */
+    #ifdef ENABLE_MOT
+    if ((dw_enabled() || ENABLE_DSS) && get_condition_lock) 
+    #endif
+    {
         /*
          * We must use a conditional lock acquisition here to avoid deadlock. If
          * page_writer and double_write are enabled, only page_writer is allowed to
@@ -4177,9 +4183,12 @@ bool SyncFlushOneBuffer(int buf_id, bool get_condition_lock)
             }
             break;
         }
-    } else {
+    }
+    #ifdef ENABLE_MOT
+    else {
         (void)LWLockAcquire(buf_desc->content_lock, LW_SHARED);
     }
+    #endif
 
     if (ENABLE_DMS && buf_desc->extra->aio_in_progress) {
         LWLockRelease(buf_desc->content_lock);