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Sat, 08 Nov 2025 09:25:55 -0800 (PST) From: Xie Yuanbin To: david@redhat.com, tglx@linutronix.de, segher@kernel.crashing.org, riel@surriel.com, peterz@infradead.org, linux@armlinux.org.uk, mathieu.desnoyers@efficios.com, paulmck@kernel.org, pjw@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, davem@davemloft.net, andreas@gaisler.com, luto@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, james.clark@linaro.org, anna-maria@linutronix.de, frederic@kernel.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, morbo@google.com, justinstitt@google.com, qq570070308@gmail.com, thuth@redhat.com, brauner@kernel.org, arnd@arndb.de, jlayton@kernel.org, aalbersh@redhat.com, akpm@linux-foundation.org, david@kernel.org, lorenzo.stoakes@oracle.com, max.kellermann@ionos.com, ryan.roberts@arm.com, nysal@linux.ibm.com, urezki@gmail.com Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.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, will@kernel.org Subject: [PATCH v2 2/4] Make raw_spin_rq_unlock inline Date: Sun, 9 Nov 2025 01:23:44 +0800 Message-ID: <20251108172346.263590-3-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251108172346.263590-1-qq570070308@gmail.com> References: <20251108172346.263590-1-qq570070308@gmail.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This function is short, and is called in some critical hot code paths, such as finish_lock_switch. Make it inline to optimize performance. Signed-off-by: Xie Yuanbin Cc: Thomas Gleixner Cc: Rik van Riel Cc: Segher Boessenkool Cc: David Hildenbrand Cc: Peter Zijlstra --- 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 81cf8452449a..0e50ef3d819a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -677,11 +677,6 @@ 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 f702fb452eb6..7d305ec10374 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1541,13 +1541,17 @@ 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