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Sat, 24 Jan 2026 09:17:57 -0800 (PST) Received: from DESKTOP-3LEPQG8.localdomain ([119.28.20.50]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-8231871f97asm5208091b3a.40.2026.01.24.09.17.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Jan 2026 09:17:57 -0800 (PST) From: Xie Yuanbin To: peterz@infradead.org, tglx@kernel.org, riel@surriel.com, segher@kernel.crashing.org, david@kernel.org, hpa@zytor.com, arnd@arndb.de, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, luto@kernel.org, houwenlong.hwl@antgroup.com Cc: linux-kernel@vger.kernel.org, x86@kernel.org, Xie Yuanbin Subject: [PATCH v6 2/3] sched: Make raw_spin_rq_unlock() inline Date: Sun, 25 Jan 2026 01:15:45 +0800 Message-ID: <20260124171546.43398-3-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260124171546.43398-1-qq570070308@gmail.com> References: <20260124171546.43398-1-qq570070308@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit raw_spin_rq_unlock() is short, and is called in some hot code paths such as finish_lock_switch. Make raw_spin_rq_unlock() inline to optimize performance. Signed-off-by: Xie Yuanbin Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Rik van Riel Cc: Segher Boessenkool Cc: David Hildenbrand (Red Hat) Cc: H. Peter Anvin (Intel) --- kernel/sched/core.c | 5 ----- kernel/sched/sched.h | 9 ++++++--- 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7de5ceb9878b..12d3c42960f2 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -687,11 +687,6 @@ bool raw_spin_rq_trylock(struct rq *rq) } } -void raw_spin_rq_unlock(struct rq *rq) -{ - raw_spin_unlock(rq_lockp(rq)); -} - /* * double_rq_lock - safely lock two runqueues */ diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b0d920aa0acb..2daa63b760dd 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1604,15 +1604,18 @@ extern void raw_spin_rq_lock_nested(struct rq *rq, int subclass) extern bool raw_spin_rq_trylock(struct rq *rq) __cond_acquires(true, __rq_lockp(rq)); -extern void raw_spin_rq_unlock(struct rq *rq) - __releases(__rq_lockp(rq)); - static inline void raw_spin_rq_lock(struct rq *rq) __acquires(__rq_lockp(rq)) { raw_spin_rq_lock_nested(rq, 0); } +static inline void raw_spin_rq_unlock(struct rq *rq) + __releases(__rq_lockp(rq)) +{ + raw_spin_unlock(rq_lockp(rq)); +} + static inline void raw_spin_rq_lock_irq(struct rq *rq) __acquires(__rq_lockp(rq)) { -- 2.51.0