linux-kernel - [PATCH 4/4] sched_ext: Make scx_locked

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Message-ID: <20250604143547.708202-5-arighi@nvidia.com>
Date: Wed,  4 Jun 2025 16:33:14 +0200
From: Andrea Righi <arighi@...dia.com>
To: Tejun Heo <tj@...nel.org>,
	David Vernet <void@...ifault.com>,
	Changwoo Min <changwoo@...lia.com>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] sched_ext: Make scx_locked_rq() shared

scx_locked_rq() is used both from ext.c and ext_idle.c, so make it
public and declare its prototype in ext.h.

No functional changes.

Signed-off-by: Andrea Righi <arighi@...dia.com>
---
 kernel/sched/ext.c | 2 +-
 kernel/sched/ext.h | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index 3e483138dff60..941603ec67e27 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -1265,7 +1265,7 @@ static inline void update_locked_rq(struct rq *rq)
  * Return the rq currently locked from an scx callback, or NULL if no rq is
  * locked.
  */
-static inline struct rq *scx_locked_rq(void)
+struct rq *scx_locked_rq(void)
 {
 	return __this_cpu_read(locked_rq);
 }
diff --git a/kernel/sched/ext.h b/kernel/sched/ext.h
index d30f2d1bc00d5..cda5dfa4dad09 100644
--- a/kernel/sched/ext.h
+++ b/kernel/sched/ext.h
@@ -18,6 +18,8 @@ static inline bool scx_rq_bypassing(struct rq *rq)
 	return unlikely(rq->scx.flags & SCX_RQ_BYPASSING);
 }
 
+struct rq *scx_locked_rq(void);
+
 DECLARE_STATIC_KEY_FALSE(scx_ops_allow_queued_wakeup);
 
 void scx_tick(struct rq *rq);
-- 
2.49.0