linux-kernel - [PATCH] locking/mutex: remove redundant ifdef

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Message-ID: <20250704015218.359754-1-ranxiaokai627@163.com>
Date: Fri,  4 Jul 2025 01:52:18 +0000
From: ranxiaokai627@....com
To: peterz@...radead.org,
	mingo@...hat.com,
	will@...nel.org,
	boqun.feng@...il.com,
	longman@...hat.com
Cc: linux-kernel@...r.kernel.org,
	ran.xiaokai@....com.cn
Subject: [PATCH] locking/mutex: remove redundant ifdef

From: Ran Xiaokai <ran.xiaokai@....com.cn>

hung_task_set/clear_blocker() is already guarded by
CONFIG_DETECT_HUNG_TASK_BLOCKER in hung_task.h, So remove
the redudant check of #ifdef.

Signed-off-by: Ran Xiaokai <ran.xiaokai@....com.cn>
---
 kernel/locking/mutex.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index a39ecccbd106..d4210dc97b6a 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -191,9 +191,7 @@ static void
 __mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
 		   struct list_head *list)
 {
-#ifdef CONFIG_DETECT_HUNG_TASK_BLOCKER
 	hung_task_set_blocker(lock, BLOCKER_TYPE_MUTEX);
-#endif
 	debug_mutex_add_waiter(lock, waiter, current);
 
 	list_add_tail(&waiter->list, list);
@@ -209,9 +207,7 @@ __mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter)
 		__mutex_clear_flag(lock, MUTEX_FLAGS);
 
 	debug_mutex_remove_waiter(lock, waiter, current);
-#ifdef CONFIG_DETECT_HUNG_TASK_BLOCKER
 	hung_task_clear_blocker();
-#endif
 }
 
 /*
-- 
2.25.1