From 774c14fcde2822f201c5bc11929d3a7b6825a774 Mon Sep 17 00:00:00 2001
From: zhouxiongjia <719216473@qq.com>
Date: Mon, 14 Sep 2020 20:00:56 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=87=E6=BB=A4=E6=8E=89lock=5Fcodegen=5Fpro?=
 =?UTF-8?q?cess=5Fsub=E5=87=BD=E6=95=B0=E7=9A=84count=20=3D=200=E6=97=B6?=
 =?UTF-8?q?=E7=9A=84=E6=83=85=E5=86=B5=EF=BC=8C=E6=8F=90=E9=AB=98=E6=9F=A5?=
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---
 src/gausskernel/process/tcop/postgres.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gausskernel/process/tcop/postgres.cpp b/src/gausskernel/process/tcop/postgres.cpp
index b544f0459..b326a4c05 100755
--- a/src/gausskernel/process/tcop/postgres.cpp
+++ b/src/gausskernel/process/tcop/postgres.cpp
@@ -10807,6 +10807,9 @@ void lock_codegen_process_add()
 /* lock function for  g_instance.codegen_IRload_process_count Subtraction */
 void lock_codegen_process_sub(int count)
 {
+	if (count == 0) {
+		return;
+	}
     AutoMutexLock copyLock(&nodeDefCopyLock);
     copyLock.lock();
     g_instance.codegen_IRload_process_count = g_instance.codegen_IRload_process_count - count;