From 4f342456b3f6a672a860bc8a9e604628e5fbc74e Mon Sep 17 00:00:00 2001
From: tyx <462747508@qq.com>
Date: Tue, 24 May 2022 16:24:45 +0800
Subject: [PATCH] [ulog] Optimize unnecessary refresh

---
 components/utilities/ulog/backend/file_be.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/components/utilities/ulog/backend/file_be.c b/components/utilities/ulog/backend/file_be.c
index 693d9abaeb..62f3f7ad83 100644
--- a/components/utilities/ulog/backend/file_be.c
+++ b/components/utilities/ulog/backend/file_be.c
@@ -79,11 +79,10 @@ static void ulog_file_backend_flush_with_buf(struct ulog_backend *backend)
     struct ulog_file_be *be = (struct ulog_file_be *) backend;
     rt_size_t file_size = 0, write_size = 0;
 
-    if (be->enable == RT_FALSE)
+    if (be->enable == RT_FALSE || be->buf_ptr_now == be->file_buf)
     {
         return;
     }
-
     if (be->cur_log_file_fd < 0)
     {
         /* check log file directory  */
-- 
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