linux-kernel - [tip: sched/urgent] sched/deadline: Fix dl_server

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Message-ID: <175627713711.1920.4925893907942675372.tip-bot2@tip-bot2>
Date: Wed, 27 Aug 2025 06:45:37 -0000
From: "tip-bot2 for Huacai Chen" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Huacai Chen <chenhuacai@...ngson.cn>,
 "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: sched/urgent] sched/deadline: Fix dl_server_stopped()

The following commit has been merged into the sched/urgent branch of tip:

Commit-ID:     4717432dfd99bbd015b6782adca216c6f9340038
Gitweb:        https://git.kernel.org/tip/4717432dfd99bbd015b6782adca216c6f9340038
Author:        Huacai Chen <chenhuacai@...ngson.cn>
AuthorDate:    Sat, 09 Aug 2025 21:04:19 +08:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Tue, 26 Aug 2025 10:46:00 +02:00

sched/deadline: Fix dl_server_stopped()

Commit cccb45d7c429 ("sched/deadline: Less agressive dl_server handling")
introduces dl_server_stopped(). But it is obvious that dl_server_stopped()
should return true if dl_se->dl_server_active is 0.

Fixes: cccb45d7c429 ("sched/deadline: Less agressive dl_server handling")
Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20250809130419.1980742-1-chenhuacai@loongson.cn
---
 kernel/sched/deadline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index e2d51f4..bb813af 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1611,7 +1611,7 @@ void dl_server_stop(struct sched_dl_entity *dl_se)
 static bool dl_server_stopped(struct sched_dl_entity *dl_se)
 {
 	if (!dl_se->dl_server_active)
-		return false;
+		return true;
 
 	if (dl_se->dl_server_idle) {
 		dl_server_stop(dl_se);