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GET /api/1.2/patches/2235044/?format=api
{ "id": 2235044, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2235044/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260508131647.43868-9-frederic@kernel.org/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20260508131647.43868-9-frederic@kernel.org>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260508131647.43868-9-frederic@kernel.org/", "date": "2026-05-08T13:16:40", "name": "[08/15] tick/sched: Remove nohz disabled special case in cputime fetch", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "794af60997d90585dd96974afa7f78c9ad665e61", "submitter": { "id": 79411, "url": "http://patchwork.ozlabs.org/api/1.2/people/79411/?format=api", "name": "Frederic Weisbecker", "email": "frederic@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260508131647.43868-9-frederic@kernel.org/mbox/", "series": [ { "id": 503389, "url": "http://patchwork.ozlabs.org/api/1.2/series/503389/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=503389", "date": "2026-05-08T13:16:32", "name": "tick/sched: Refactor idle cputime accounting", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/503389/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2235044/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2235044/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20618-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=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=c7kaX+Hp;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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a=rsa-sha256; d=lists.ozlabs.org; s=201707;\n\tt=1778246296; c=relaxed/relaxed;\n\tbh=DysSSD+zijAkT9g3xvIyMU4mSeKMOgmNgfs72VkPB9s=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=T3p0k6xzDVFnWDyhtwPsAATaWc6NqK/ezTkC/RNFzIb5PLGOUpKBFuhxAZTDDV6zuQNSr0QFqeOnqsyaVWvHo5qoH4SCZ7IN0pqDgxxrGyKxkk0hoj9ZBGicneNNI5INQNUxpDhAm45MtXPtXcGjaUqeS1Nj3ezBLELmZC2yRBYd/noE4ciEXRJTN4r1UjqdmPCYD3LLmAv2brlPKErTYQrZ2welgu5DNt2S80B+VMfrB2RnG3TC0/q+e1vgJ8Vtv4HIkEIfzUkkMKsbqefbERs02RKfdtCnPErYN1VCSLLX2BwVI/h9jU/U6Dt5399aekdbCvW+cm/tXXJgnBEfbQ==", "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=c7kaX+Hp; 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=1778246293;\n\tbh=io8KrTBtq3aJ0dhYedSg6U8IhcLJD6XwOWmo7Hj3GGA=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=c7kaX+HpxT9hK7ECL2jsK351GfD7WROm3hbyW+Wg3u8NNzz91ipj3ampGwqVUNFVw\n\t iKIN7zRlETgkKLvkE2a8ud8XkYj3IoQgP3haZu54yNH2riW1kxVBA2u084Uwuoxqug\n\t a8TOGGU0whl5mklifqizpKBkI7d9MumfKI8+K/Qxcm6NVVpsPPhjjHgsbfn8opTeJt\n\t IUDkr+VL6vXyC0YQ9melD2ClEdwBycY3ZgIQFFBrDU74ekJwC6wvhffbMw9bhC4tlD\n\t Ptl/w+hZHq6daCsDuo1c7EPjoElFSlHMH9QaGIwXKwtGJem9xrytyOHmqcs/N1IzsB\n\t EIkt+AufnCm5w==", "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>, Boqun 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>, Ingo Molnar <mingo@kernel.org>,\n\tIngo Molnar <mingo@redhat.com>, Jan 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>, Michael 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>, Sashiko@lists.ozlabs.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>, linux-pm@vger.kernel.org,\n\tlinux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org", "Subject": "[PATCH 08/15] tick/sched: Remove nohz disabled special case in\n cputime fetch", "Date": "Fri, 8 May 2026 15:16:40 +0200", "Message-ID": "<20260508131647.43868-9-frederic@kernel.org>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260508131647.43868-1-frederic@kernel.org>", "References": "<20260508131647.43868-1-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=-0.6 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 c3efd3583cf9..cb235ec7d2d6 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@@ -839,7 +836,7 @@ 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@@ -863,7 +860,7 @@ 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": [ "08/15" ] }