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([145.224.119.89]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-624841586c1sm1302244d50.6.2025.09.12.08.10.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Sep 2025 08:10:58 -0700 (PDT) From: Eugen Hristev To: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, andersson@kernel.org, pmladek@suse.com, rdunlap@infradead.org, corbet@lwn.net, david@redhat.com, mhocko@suse.com Cc: tudor.ambarus@linaro.org, mukesh.ojha@oss.qualcomm.com, linux-arm-kernel@lists.infradead.org, linux-hardening@vger.kernel.org, jonechou@google.com, rostedt@goodmis.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, Eugen Hristev Subject: [RFC][PATCH v3 13/16] sched: Add sched_get_runqueues_area Date: Fri, 12 Sep 2025 18:08:52 +0300 Message-ID: <20250912150855.2901211-14-eugen.hristev@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250912150855.2901211-1-eugen.hristev@linaro.org> References: <20250912150855.2901211-1-eugen.hristev@linaro.org> 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" Add simple function to get the runqueues area and size for dumping purpose. Signed-off-by: Eugen Hristev --- kernel/sched/core.c | 15 +++++++++++++++ kernel/sched/sched.h | 2 ++ 2 files changed, 17 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 9af28286e61a..a054dd1fda68 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -120,6 +120,21 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(sched_compute_energy_tp); =20 DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); =20 +/** + * sched_get_runqueues_area() - obtain runqueues area for dumping + * @start: pointer to the start of the area, to be filled in + * @size: size of the area, to be filled in + * + * The obtained area is only to be used for dumping purpose + * + * Return: none + */ +void sched_get_runqueues_area(void **start, size_t *size) +{ + *start =3D &runqueues; + *size =3D sizeof(runqueues); +} + #ifdef CONFIG_SCHED_PROXY_EXEC DEFINE_STATIC_KEY_TRUE(__sched_proxy_exec); static int __init setup_proxy_exec(char *str) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b5367c514c14..3b9cedb1fbeb 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -1330,6 +1330,8 @@ DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); #define cpu_curr(cpu) (cpu_rq(cpu)->curr) #define raw_rq() raw_cpu_ptr(&runqueues) =20 +void sched_get_runqueues_area(void **start, size_t *size); + #ifdef CONFIG_SCHED_PROXY_EXEC static inline void rq_set_donor(struct rq *rq, struct task_struct *t) { --=20 2.43.0