From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7D258CA101F for ; Fri, 12 Sep 2025 15:11:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=iQyd/J78t59e431BzK+r1hLIHKrEAjBfy36U2OzrJzo=; b=kXyF1Vsjpw/vSk4K8gPA5xgO+f k/mpCLTWLABROGr/mivec/70pQlnFWLYgnRKvy84hvDuPwzgpk6+RzMchlRlmNjDaZbLSAg8/LVID zTn0lsuwc5CtviZ07u2/e3Y+71FAhoXLs2vVb66eywuSAU9yb+NvyqBDB9USLQN2lbGoM884ZKIwr AExx9Z8M6ptkDBSNw8Fh57mnLPclvkO7SW5k8NKkaG84SwrEUtYFad3pq/KHWHFb+qRbd1DjLnDa7 MnwZHYWGOJbySm6lw4KZeTAmwSAn79M+LR/O/Lke3aIYCFGEiPg9RtDd0OLzx1ODXLus4Ch68ZsZ/ Q8Z3e9qg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ux5QU-0000000A8oN-31ed; Fri, 12 Sep 2025 15:11:02 +0000 Received: from mail-yb1-xb2f.google.com ([2607:f8b0:4864:20::b2f]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ux5QR-0000000A8km-387a for linux-arm-kernel@lists.infradead.org; Fri, 12 Sep 2025 15:11:01 +0000 Received: by mail-yb1-xb2f.google.com with SMTP id 3f1490d57ef6-ea3c51e4cffso1466051276.3 for ; Fri, 12 Sep 2025 08:10:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1757689858; x=1758294658; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=iQyd/J78t59e431BzK+r1hLIHKrEAjBfy36U2OzrJzo=; b=zm8g0Kxa6aCjgvk17G0cSQaLVNpnQpks1f59nFv0iLT69MFvU1yhjNa4cC96H/WTGQ TiNqULZj8E1JGbdASUbl/mmpUZWIzZyHimHWoZ1rfeYhKwe9oqDBFEAdcIPly0V17E0m dUyGC8BoEw8SiqpwbkHn24rz7DhBhvuqdZXRvsp3pPbkl8bb6UT/Bbjh3pKmwbFhMn+c oQnf6IY+x4t/1CnBSMxqGYOF5Ru3KeRxbO7vl0UbAOexoIw1e6pmOIG5xg5qKN38QtXA IUIgm27rTqevuGtyboIScdvv+FLJ6QOHy65LrKL7xxO7ZyZWp+uPg94vEE2BpU9CJJN5 wBdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757689858; x=1758294658; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=iQyd/J78t59e431BzK+r1hLIHKrEAjBfy36U2OzrJzo=; b=FYJwYBn/L9VcVhJaGLHRs2uFap/u9rQGpj8MsQBPvny6+BHJzOb5sZDfQrV6GZD/N6 MZRWZMAoeKwqDr8rbzP3NQ9tpetTSsSB/Ib7kSEXdIaA4FWtW2O3Gcy80ZymDZjCve4m 9PUFs60Xg/jb8rdE0tOsuvYxt8YwrEhxRd5S4yKDY0PyRNax4YaQvtOKBGslkh0aGiXW lo5EyVUwM1MH9Zaf3j1XMXjmgCfC1YPQQR61D8fkeIAxjHLwGhqbn2X6gWCpQb0G60yl XGFHwubHFyodjJDNl6yBJi+n9GJc/6E4whVoPDbWlLF4z37PDh8BjnP57ukvKrxRgzgU xSaw== X-Forwarded-Encrypted: i=1; AJvYcCV7CjglgOg5UpBsHI/7qjUpEU+/5CRtlKv9ydUtr9x16Al39gLtkmccK7m0Q+H6+fbc/8ojBeDP+AfPFoazkPRV@lists.infradead.org X-Gm-Message-State: AOJu0YyTcp6H2SrF9a6rBKASOfncFVbWT011Mm93WQOWbXzUz6VZ9oFN t+voa+tNXVuOmi5DW2hxQVQOKO4TmzASgS2swk5NoquDSKetSQlF6fnh5aK+XEJuQoM= X-Gm-Gg: ASbGnctG2xcPTLU+ZClG7FChlRy63uHXEu0uGe42pArE1PE0M6sAV7CLxf+LpD/6KMC 2PT7BdDO/yN5oUIhPbqP8DRR8KH2ZFwRyvZBL4NxD+hgY0CNXxvlRQ3XS+PU27FGHOpljZvcx2S EcQOcomNIBtWAzYlqGarTKyOUUg+kxbBv25C+VEoMSPDHRLOPYDUvTiyjlAPdTG+UNJOFuQmL7A i0DS+45zk3xS9LIp7Yex6MHYSkxfEtywh6xpYDxFdj8rJbHgUDgAGow/cjWcmUyl2PlOmSsW4mr MLYmbrds1X+X38437waCX7j8mROz55eAxA8KRblPgI50HDklefWv0Z1BBPHVFkfD6jWmyKgnQ48 OgN3YEVbkY8ANlfYLB1qzn5+ItdmHhbKo4A== X-Google-Smtp-Source: AGHT+IHiWq2tZ0Zh+6RCMZ5n4YEMDF8GDIlS1UolWn0dcdm4mJQCk7ANF/Eeoayp4tEVnT1oJJ4YdQ== X-Received: by 2002:a05:690c:6089:b0:723:9ba7:7f9e with SMTP id 00721157ae682-73064cfc375mr30364727b3.25.1757689858316; Fri, 12 Sep 2025 08:10:58 -0700 (PDT) Received: from eugen-station.. ([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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250912_081059_843407_AD32D8E9 X-CRM114-Status: GOOD ( 11.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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); DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); +/** + * 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 = &runqueues; + *size = 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) +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) { -- 2.43.0