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Sun, 01 Mar 2026 00:36:35 -0800 (PST) From: Xie Yuanbin To: peterz@infradead.org, tglx@kernel.org, dave.hansen@linux.intel.com, hpa@zytor.com, riel@surriel.com, david@kernel.org, segher@kernel.crashing.org, 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, luto@kernel.org, frederic@kernel.org, mingo@kernel.org, houwenlong.hwl@antgroup.com, will@kernel.org, akpm@linux-foundation.org, jgross@suse.com, baohua@kernel.org, ryan.roberts@arm.com, lorenzo.stoakes@oracle.com, nysal@linux.ibm.com, urezki@gmail.com, max.kellermann@ionos.com Cc: x86@kernel.org, linux-kernel@vger.kernel.org, Xie Yuanbin Subject: [PATCH v8 2/3] sched: Make raw_spin_rq_unlock() inline Date: Sun, 1 Mar 2026 16:35:19 +0800 Message-ID: <20260301083520.110969-3-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260301083520.110969-1-qq570070308@gmail.com> References: <20260301083520.110969-1-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. Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Rik van Riel Cc: Segher Boessenkool Cc: David Hildenbrand (Arm) Cc: H. Peter Anvin (Intel) Signed-off-by: Xie Yuanbin --- 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 bfd280ec0f97..b59bab255e57 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 fa2237e89bee..953d89d71804 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1607,15 +1607,18 @@ 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