From b42f00cb8eb66af8ffe7d644e6be73d2cc4a44ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9B=B6=E4=B8=AD=E6=96=AD=E5=BB=B6=E8=BF=9F=E7=9A=84RTOS?=
 <cosyos@139.com>
Date: Tue, 15 Apr 2025 10:22:11 +0000
Subject: [PATCH] update System/sv_task.c.
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Signed-off-by: 零中断延迟的RTOS <cosyos@139.com>
---
 System/sv_task.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/System/sv_task.c b/System/sv_task.c
index 3aaed6c7..9840c214 100644
--- a/System/sv_task.c
+++ b/System/sv_task.c
@@ -4,8 +4,8 @@
  * @brief    任务服务
  * @details  仅在任务中调用并执行。
  * @author   迟凯峰
- * @version  V1.2.2
- * @date     2025.04.13
+ * @version  V1.2.3
+ * @date     2025.04.15
  ******************************************************************************/
 
 #include "os_var.h"
@@ -414,14 +414,19 @@ bool su_take_mutex(s_mutex_tsp hmut, s_delay_t tick)
 	sv_insert_block_list(&hmut->htask);
 	sv_task_remove_ready(s_task_current);
 	s_task_current->status = OS_STATUS_BLOCKED;
+	s_task_current->blocktype = OS_BLOCKED_MUTEX;
 	if(s_task_current->pri > hmut->otask->pri){
 		#if SYSCFG_SAMEPRISCHEDULE
-		sv_set_taskpri(hmut->otask, s_task_current->pri);
+		s_tasknode_tsp link = hmut->otask;
+		s_task_current->link = link;
+		do{
+			sv_set_taskpri(link, s_task_current->pri);
+			link = link->link;
+		}while(link != OS_NULL);
 		#else
-		sv_set_taskpri(hmut->otask, SYSCFG_TASKPRIORITY - 1);
+		sv_set_taskpri(hmut->otask, s_taskpri_ceiling++);
 		#endif
 	}
-	s_task_current->blocktype = OS_BLOCKED_MUTEX;
 	s_task_current->timer = tick;
 	s_task_current->handle = hmut;
 	su_kernel_unlock0_psv();
@@ -457,6 +462,9 @@ void su_back_mutex(s_mutex_tsp hmut)
 		if(!hmut->mutex){
 			if(s_task_current->pri > hmut->opri){
 				sv_set_taskpri(s_task_current, hmut->opri);
+				#if !SYSCFG_SAMEPRISCHEDULE
+				s_taskpri_ceiling--;
+				#endif
 			}
 			if(hmut->htask != OS_NULL){
 				sv_delete_block_list(&hmut->htask);