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Sun, 14 Dec 2025 11:09:57 -0800 (PST) From: Xie Yuanbin To: tglx@linutronix.de, peterz@infradead.org, riel@surriel.com, segher@kernel.crashing.org, david@kernel.org, hpa@zytor.com, arnd@arndb.de, acme@kernel.org, adrian.hunter@intel.com, agordeev@linux.ibm.com, akpm@linux-foundation.org, alex@ghiti.fr, alexander.shishkin@linux.intel.com, andreas@gaisler.com, anshuman.khandual@arm.com, aou@eecs.berkeley.edu, borntraeger@linux.ibm.com, bp@alien8.de, bsegall@google.com, dave.hansen@linux.intel.com, davem@davemloft.net, dietmar.eggemann@arm.com, frederic@kernel.org, gor@linux.ibm.com, hca@linux.ibm.com, irogers@google.com, james.clark@linaro.org, jolsa@kernel.org, juri.lelli@redhat.com, justinstitt@google.com, lorenzo.stoakes@oracle.com, luto@kernel.org, mark.rutland@arm.com, mathieu.desnoyers@efficios.com, max.kellermann@ionos.com, mgorman@suse.de, mingo@redhat.com, morbo@google.com, namhyung@kernel.org, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, nysal@linux.ibm.com, palmer@dabbelt.com, paulmck@kernel.org, pjw@kernel.org, rostedt@goodmis.org, ryan.roberts@arm.com, svens@linux.ibm.com, thuth@redhat.com, urezki@gmail.com, vincent.guittot@linaro.org, vschneid@redhat.com, linux@armlinux.org.uk Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v5 2/3] sched: Make raw_spin_rq_unlock() inline Date: Mon, 15 Dec 2025 03:09:06 +0800 Message-ID: <20251214190907.184793-3-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251214190907.184793-1-qq570070308@gmail.com> References: <20251214190907.184793-1-qq570070308@gmail.com> Precedence: bulk X-Mailing-List: linux-s390@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: Thomas Gleixner Cc: Rik van Riel Cc: Segher Boessenkool Cc: David Hildenbrand (Red Hat) Cc: Peter Zijlstra Cc: H. Peter Anvin (Intel) --- kernel/sched/core.c | 5 ----- kernel/sched/sched.h | 6 +++++- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 41ba0be16911..20146da3f181 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -678,11 +678,6 @@ 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 d30cca6870f5..bef6cb13266d 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1551,13 +1551,17 @@ static inline void lockdep_assert_rq_held(struct rq *rq) extern void raw_spin_rq_lock_nested(struct rq *rq, int subclass); extern bool raw_spin_rq_trylock(struct rq *rq); -extern void raw_spin_rq_unlock(struct rq *rq); static inline void raw_spin_rq_lock(struct rq *rq) { raw_spin_rq_lock_nested(rq, 0); } +static inline void raw_spin_rq_unlock(struct rq *rq) +{ + raw_spin_unlock(rq_lockp(rq)); +} + static inline void raw_spin_rq_lock_irq(struct rq *rq) { local_irq_disable(); -- 2.51.0