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Thu, 14 May 2026 15:23:07 +0000 (GMT) Received: from li-7bb28a4c-2dab-11b2-a85c-887b5c60d769.ibm.com.com (unknown [9.124.213.185]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 14 May 2026 15:23:06 +0000 (GMT) From: Shrikanth Hegde To: linux-kernel@vger.kernel.org, mingo@kernel.org, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, yury.norov@gmail.com, kprateek.nayak@amd.com, iii@linux.ibm.com Cc: sshegde@linux.ibm.com, tglx@kernel.org, gregkh@linuxfoundation.org, pbonzini@redhat.com, seanjc@google.com, vschneid@redhat.com, huschle@linux.ibm.com, rostedt@goodmis.org, dietmar.eggemann@arm.com, mgorman@suse.de, bsegall@google.com, maddy@linux.ibm.com, srikar@linux.ibm.com, hdanton@sina.com, chleroy@kernel.org, vineeth@bitbyteword.org, frederic@kernel.org, arighi@nvidia.com, pauld@redhat.com, christian.loehle@arm.com, tj@kernel.org, tommaso.cucinotta@gmail.com, maz@kernel.org, rafael@kernel.org Subject: [PATCH v3 01/20] sched/debug: Remove unused schedstats Date: Thu, 14 May 2026 20:51:45 +0530 Message-ID: <20260514152204.481115-2-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260514152204.481115-1-sshegde@linux.ibm.com> References: <20260514152204.481115-1-sshegde@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=cPHQdFeN c=1 sm=1 tr=0 ts=6a05e8e8 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=NlpiSR-wqh4DhfsiYFIA:9 X-Proofpoint-ORIG-GUID: tU9RZM0ktKrrk1DPl4n65tyYe0ZbrivW X-Proofpoint-GUID: 2dc5jQkCUNb9KXUr1jVPAtbubPL56rC0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTE0MDE1MyBTYWx0ZWRfXwrSluaHBHL7j vMA+/vqIoI0uLEvJhGo7S7hFM6P0w5pvEEV2anAv8uaqZG7Gt2fowg7j6v2JATRmusw5qXrWOnA 4s5MXB4cySTHkYntSoXKOUNLUXiJ96grpPtwuoTstjcj5g+QQcCXaTjRPxLDzxZyj+NPZxyhhj/ qhm3y3VW+nQTmYANVr8mQ2e2TrZ4felp//lWF8fJUMheAY9rsjzs3K6kQ32SlwVplqT23i6Uvo6 fB0nEnhtRoDg53mLO7Y0cTvu7T7VKiba8EiqtMnjCzXcj7tsUMxbGqY33cVKiYyHzBABF1u4JVL 4Sh6Ch+wLmUxV3Toi6wJZYzSIokWB9bML/MLKPmNY+kuwBnCj9PqyGPtMYK9Awq5N8DXpPy3vT5 Wvl/2TUiNr1EauMI3I1MxHA9rc9nnMBRaJHV1InbPyzZH9qwyENGywESMnuod649nXu5Vr28HR4 8xfab8/DmrN/j6jKnHA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-14_03,2026-05-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 phishscore=0 clxscore=1015 spamscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605140153 nr_migrations_cold, nr_wakeups_passive and nr_wakeups_idle are not being updated anywhere. So remove them. These are per process stats. So updating sched stats version isn't necessary. Signed-off-by: Shrikanth Hegde --- include/linux/sched.h | 3 --- kernel/sched/debug.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 368c7b4d7cb5..2c3ad3e0edb5 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -550,7 +550,6 @@ struct sched_statistics { s64 exec_max; u64 slice_max; - u64 nr_migrations_cold; u64 nr_failed_migrations_affine; u64 nr_failed_migrations_running; u64 nr_failed_migrations_hot; @@ -563,8 +562,6 @@ struct sched_statistics { u64 nr_wakeups_remote; u64 nr_wakeups_affine; u64 nr_wakeups_affine_attempts; - u64 nr_wakeups_passive; - u64 nr_wakeups_idle; #ifdef CONFIG_SCHED_CORE u64 core_forceidle_sum; diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 74c1617cf652..f8a43fc13564 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -1301,7 +1301,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, P_SCHEDSTAT(wait_count); PN_SCHEDSTAT(iowait_sum); P_SCHEDSTAT(iowait_count); - P_SCHEDSTAT(nr_migrations_cold); P_SCHEDSTAT(nr_failed_migrations_affine); P_SCHEDSTAT(nr_failed_migrations_running); P_SCHEDSTAT(nr_failed_migrations_hot); @@ -1313,8 +1312,6 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, P_SCHEDSTAT(nr_wakeups_remote); P_SCHEDSTAT(nr_wakeups_affine); P_SCHEDSTAT(nr_wakeups_affine_attempts); - P_SCHEDSTAT(nr_wakeups_passive); - P_SCHEDSTAT(nr_wakeups_idle); avg_atom = p->se.sum_exec_runtime; if (nr_switches) -- 2.47.3