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[73.224.175.84]) by smtp.gmail.com with ESMTPSA id 00721157ae682-712c4a2359csm13537517b3.38.2025.06.22.17.00.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Jun 2025 17:00:19 -0700 (PDT) From: Yury Norov To: "Paul E. McKenney" , Neeraj Upadhyay , "Yury Norov [NVIDIA]" , Thomas Gleixner , Thorsten Blum , Zqiang , Mathieu Desnoyers , linux-kernel@vger.kernel.org Subject: [PATCH v2 3/4] smp: Don't wait for remote work done if not needed in smp_call_function_many_cond() Date: Sun, 22 Jun 2025 20:00:08 -0400 Message-ID: <20250623000010.10124-4-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250623000010.10124-1-yury.norov@gmail.com> References: <20250623000010.10124-1-yury.norov@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: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Yury Norov [NVIDIA]" If we don't actually send any IPIs, there's no need to wait for a job completion. Signed-off-by: Yury Norov [NVIDIA] --- kernel/smp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/smp.c b/kernel/smp.c index 5871acf3cd45..715190669e94 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -849,6 +849,8 @@ static void smp_call_function_many_cond(const struct cp= umask *mask, send_call_function_single_ipi(last_cpu); else if (likely(nr_cpus > 1)) send_call_function_ipi_mask(cfd->cpumask_ipi); + else + run_remote =3D false; } =20 if (run_local) { --=20 2.43.0