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GET /api/patches/2218144/?format=api
{ "id": 2218144, "url": "http://patchwork.ozlabs.org/api/patches/2218144/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260331131622.30505-8-frederic@kernel.org/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260331131622.30505-8-frederic@kernel.org>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260331131622.30505-8-frederic@kernel.org/", "date": "2026-03-31T13:16:15", "name": "[07/14] tick/sched: Remove nohz disabled special case in cputime fetch", "commit_ref": null, "pull_url": null, "state": "handled-elsewhere", "archived": false, "hash": "794af60997d90585dd96974afa7f78c9ad665e61", "submitter": { "id": 79411, "url": "http://patchwork.ozlabs.org/api/people/79411/?format=api", "name": "Frederic Weisbecker", "email": "frederic@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260331131622.30505-8-frederic@kernel.org/mbox/", "series": [ { "id": 498198, "url": "http://patchwork.ozlabs.org/api/series/498198/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=498198", "date": "2026-03-31T13:16:08", "name": "tick/sched: Refactor idle cputime accounting", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498198/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218144/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218144/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19087-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=lIah65/w;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=112.213.38.117; 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Wed, 01 Apr 2026 00:17:29 +1100 (AEDT)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4flTDm180bz2yhV;\n\tWed, 01 Apr 2026 00:17:28 +1100 (AEDT)", "from sea.source.kernel.org (sea.source.kernel.org\n [IPv6:2600:3c0a:e001:78e:0:1991:8:25])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4flTDl1PpLz2ygh\n\tfor <linuxppc-dev@lists.ozlabs.org>; Wed, 01 Apr 2026 00:17:27 +1100 (AEDT)", "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n\tby sea.source.kernel.org (Postfix) with ESMTP id 32CBA41706;\n\tTue, 31 Mar 2026 13:17:25 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 23640C2BC9E;\n\tTue, 31 Mar 2026 13:17:17 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1774963048;\n\tcv=none;\n b=T3fib5w9bEDRnmc9URbfr/08NmmsoYwk2PvDfghl4G1psbV8rph9+b1QUXBXbLJv8IhKOXJx9lv9O1IVQXrzzphskZ0HpywMaOkZUHigo+oOvmzJ3fHGZPUyWwLRrxWkQVyRx6n9wWf0o1zHqgDLufJPpnGG5rxmPECjK1bc5gA5nH9UjsQsgs/XAGIESx67pEVRhrxzqHOM4xZBVbsP46TV3xdxZ0IOIN59M9Ev+TW0w0hh2Qd08MSlUj4A6bbG/liQ/+vftL+kkdl2iWzNDj6RBQTJT4VF6yxO2dAJCcOjUr51fUBsSHQTEgUHwB+cT/lYNNcoRTkhzDiREPYcMg==", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1774963048; c=relaxed/relaxed;\n\tbh=S5AVvcK0tBX/1ZdA4PBfUGB5NTrtwljDOmAAawN41Do=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=WVdpNDO70dsxviXRGxWFAtNsT23L8lm0wN84pFzn/DGDcXT18+Cky7YbhuTtttTrX7jr0Xs8k3LPaWV/5zUyrZIvpJhHBBBwlQ2T3VMie4YJl/R0JVYJY99RkfyDBnkJfaNwRr/Xk0wB0mFqEJZ+GTf52whDvgDnI+GpKTp642mVOnJAeuChTDqtKybjdqHnZejRi7ZTaONhwsvA4TgvGLwCCRTPzVnBnTlA+y69wxluRAZuQcWKTKp3razO7LHrz/X3p7mmAwLv+iFQ2Xm8d4PZ3VHLwdaXLpw/+Czt/f7+L6rBpkR8s7u72852YNA50Qh6GxXdZMTYyxKlbZfWrw==", "ARC-Authentication-Results": "i=1; lists.ozlabs.org;\n dmarc=pass (p=quarantine dis=none) header.from=kernel.org;\n dkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=lIah65/w; dkim-atps=neutral;\n spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25;\n helo=sea.source.kernel.org; envelope-from=frederic@kernel.org;\n receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1774963045;\n\tbh=Xsd0PjsmWwW/3jYc4ig871UilSeg7MyzpojJFWzDitk=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=lIah65/wzsxzwGZ99T9GeGNiYWhsGOJU59bgHBoNcb7G3lAfWXIXJ4FrxMM3oqT5q\n\t 1iNy13Cf/k4ifDJ7LTHwnR9FAyw95Z+HjmSnij8ZkZ0Sv/GemvfLSFI0g9C0+a87is\n\t x4lsfqYOO/YMoNPsRMW34kGGFbpygDjM//8wsaN0d2AXrdR3rgMLzeCD51vrOFg86p\n\t 95NERasKnzLq/53XXi1taHs6DkO38r5snxxz6UAHODARv1pGayZ5xBxuE6HixFR9HI\n\t DIlqDoayQzKuUjJ5ycv4aBChjmLHRPHgBaRgyixnybB/geaMr4+Fvj58dgdg8LKLU9\n\t ioskn+maxujGg==", "From": "Frederic Weisbecker <frederic@kernel.org>", "To": "LKML <linux-kernel@vger.kernel.org>", "Cc": "Frederic Weisbecker <frederic@kernel.org>,\n\t\"Christophe Leroy (CS GROUP)\" <chleroy@kernel.org>,\n\t\"Rafael J. Wysocki\" <rafael@kernel.org>,\n\tAlexander Gordeev <agordeev@linux.ibm.com>,\n\tAnna-Maria Behnsen <anna-maria@linutronix.de>,\n\tBen Segall <bsegall@google.com>,\n\tBoqun Feng <boqun.feng@gmail.com>,\n\tChristian Borntraeger <borntraeger@linux.ibm.com>,\n\tDietmar Eggemann <dietmar.eggemann@arm.com>,\n\tHeiko Carstens <hca@linux.ibm.com>,\n\tIngo Molnar <mingo@redhat.com>,\n\tJan Kiszka <jan.kiszka@siemens.com>,\n\tJoel Fernandes <joelagnelf@nvidia.com>,\n\tJuri Lelli <juri.lelli@redhat.com>,\n\tKieran Bingham <kbingham@kernel.org>,\n\tMadhavan Srinivasan <maddy@linux.ibm.com>,\n\tMel Gorman <mgorman@suse.de>,\n\tMichael Ellerman <mpe@ellerman.id.au>,\n\tNeeraj Upadhyay <neeraj.upadhyay@kernel.org>,\n\tNicholas Piggin <npiggin@gmail.com>,\n\t\"Paul E . McKenney\" <paulmck@kernel.org>,\n\tPeter Zijlstra <peterz@infradead.org>,\n\tShrikanth Hegde <sshegde@linux.ibm.com>,\n\tSteven Rostedt <rostedt@goodmis.org>,\n\tSven Schnelle <svens@linux.ibm.com>,\n\tThomas Gleixner <tglx@linutronix.de>,\n\tUladzislau Rezki <urezki@gmail.com>,\n\tValentin Schneider <vschneid@redhat.com>,\n\tVasily Gorbik <gor@linux.ibm.com>,\n\tVincent Guittot <vincent.guittot@linaro.org>,\n\tViresh Kumar <viresh.kumar@linaro.org>,\n\tXin Zhao <jackzxcui1989@163.com>,\n\tlinux-pm@vger.kernel.org,\n\tlinux-s390@vger.kernel.org,\n\tlinuxppc-dev@lists.ozlabs.org", "Subject": "[PATCH 07/14] tick/sched: Remove nohz disabled special case in\n cputime fetch", "Date": "Tue, 31 Mar 2026 15:16:15 +0200", "Message-ID": "<20260331131622.30505-8-frederic@kernel.org>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260331131622.30505-1-frederic@kernel.org>", "References": "<20260331131622.30505-1-frederic@kernel.org>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Spam-Status": "No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Even when nohz is not runtime enabled, the dynticks idle cputime\naccounting can run and the common idle cputime accessors are still\nrelevant.\n\nRemove the nohz disabled special case accordingly.\n\nSigned-off-by: Frederic Weisbecker <frederic@kernel.org>\nTested-by: Shrikanth Hegde <sshegde@linux.ibm.com>\n---\n kernel/time/tick-sched.c | 7 ++-----\n 1 file changed, 2 insertions(+), 5 deletions(-)", "diff": "diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c\nindex 2c0f0b81f452..6cd7777755dd 100644\n--- a/kernel/time/tick-sched.c\n+++ b/kernel/time/tick-sched.c\n@@ -795,9 +795,6 @@ static u64 get_cpu_sleep_time_us(int cpu, enum cpu_usage_stat idx,\n \tktime_t now, idle;\n \tunsigned int seq;\n \n-\tif (!tick_nohz_active)\n-\t\treturn -1;\n-\n \tnow = ktime_get();\n \tif (last_update_time)\n \t\t*last_update_time = ktime_to_us(now);\n@@ -838,7 +835,7 @@ static u64 get_cpu_sleep_time_us(int cpu, enum cpu_usage_stat idx,\n * This time is measured via accounting rather than sampling,\n * and is as accurate as ktime_get() is.\n *\n- * Return: -1 if NOHZ is not enabled, else total idle time of the @cpu\n+ * Return: -1 if generic vtime is enabled, else total idle time of the @cpu\n */\n u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time)\n {\n@@ -862,7 +859,7 @@ EXPORT_SYMBOL_GPL(get_cpu_idle_time_us);\n * This time is measured via accounting rather than sampling,\n * and is as accurate as ktime_get() is.\n *\n- * Return: -1 if NOHZ is not enabled, else total iowait time of @cpu\n+ * Return: -1 if generic vtime is enabled, else total iowait time of @cpu\n */\n u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time)\n {\n", "prefixes": [ "07/14" ] }