get:
Show a patch.

patch:
Update a patch.

put:
Update a patch.

GET /api/1.2/patches/2235044/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "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; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-20618-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)",
            "lists.ozlabs.org;\n arc=none smtp.remote-ip=\"2600:3c0a:e001:78e:0:1991:8:25\"",
            "lists.ozlabs.org;\n dmarc=pass (p=quarantine dis=none) header.from=kernel.org",
            "lists.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=c7kaX+Hp;\n\tdkim-atps=neutral",
            "lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org\n (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org;\n envelope-from=frederic@kernel.org; receiver=lists.ozlabs.org)"
        ],
        "Received": [
            "from lists.ozlabs.org (lists.ozlabs.org\n [IPv6:2404:9400:21b9:f100::1])\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 legolas.ozlabs.org (Postfix) with ESMTPS id 4gBqS86SPrz1yJq\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 08 May 2026 23:18:16 +1000 (AEST)",
            "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4gBqS85NNtz3bjW;\n\tFri, 08 May 2026 23:18:16 +1000 (AEST)",
            "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 4gBqS75r5Cz30V2\n\tfor <linuxppc-dev@lists.ozlabs.org>; Fri, 08 May 2026 23:18:15 +1000 (AEST)",
            "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n\tby sea.source.kernel.org (Postfix) with ESMTP id D55FA437E8;\n\tFri,  8 May 2026 13:18:13 +0000 (UTC)",
            "by smtp.kernel.org (Postfix) with ESMTPSA id 2AC48C2BCF4;\n\tFri,  8 May 2026 13:18:06 +0000 (UTC)"
        ],
        "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1778246296;\n\tcv=none;\n b=Pokk76Wd7z1SxsS6Fp8yo543WXWLA2xTW2OsJZ2PCekKFEboJQmBD3Vbln0HryonEPzLtGaIeN3FvqgKn6grQWJtRA3UIBMZb9gR7/1/EPhOtqiuJwG+4Gu+yXE0GmgqBG56W1w49uv0BBOsVKLPV1hLT972HUKO3xihmVOd028qzjgYq3B1GkKPlWLNBgdzYxZo7V32iADc1J1VsSMoGJG0pJEoQAFG6BAC4+dhR6p+JBGOEV4C0DvzrOI8WNum2jwT8CIHV2B9UIn5/oO9pFAVwMpgpAoYH6+/AdKOxvC4HWv7yCaRDugSzb1Q5t+TV/2cB1ulL2aan2tYPoiJSA==",
        "ARC-Message-Signature": "i=1; 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"
    ]
}