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Thu, 25 Jun 2026 12:47:06 +0000 (GMT) Received: from li-7bb28a4c-2dab-11b2-a85c-887b5c60d769.ibm.com.com (unknown [9.39.20.6]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 25 Jun 2026 12:47:06 +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, corbet@lwn.net 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, 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, rdunlap@infradead.org, kernellwp@gmail.com, linux-doc@vger.kernel.org Subject: [PATCH v5 01/24] sched/debug: Remove unused schedstats Date: Thu, 25 Jun 2026 18:16:25 +0530 Message-ID: <20260625124648.802832-2-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260625124648.802832-1-sshegde@linux.ibm.com> References: <20260625124648.802832-1-sshegde@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-doc@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-Proofpoint-Spam-Info: AW1haW4tMjYwNjI1MDEwNiBTYWx0ZWRfX6grs2PSN0PVL gjK6hIbOCzkbRlJKukHQRXvKYRAkdUy6WniKo8Xd5stHftlCV3stfV2PtXuOMTM7Xq7zejgAuy3 oE/63DmraW10jGjkvXAyo/MqGWl+M+U= X-Proofpoint-ORIG-GUID: wiUR34rn3ccF31_KaqRoJws0g3J6cwm- X-Authority-Analysis: v=2.4 cv=Oph/DS/t c=1 sm=1 tr=0 ts=6a3d2357 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=zd2uoN0lAAAA:8 a=VnNF1IyMAAAA:8 a=NlpiSR-wqh4DhfsiYFIA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI1MDEwNiBTYWx0ZWRfX6nbSezf0lv0v DPC5G6PTYAaj73WFEBta5+hRuxF2Gmlt/mXgVTiLIULPY7fJvyZOfqaZQOV85JOLn4w5q3oSYWo lV2DmlVfCToehLQ0B3Ycn8LXmi3Xnefy50TPhD7x9KEXGU3AJVLfUj5LQBFc147nzBW6GxLt6ZO EGpBnKOqRht4PZWFKOlKRiHb7co6FYPOesUclPqQ+Of9Wpo/7llTIVM22IbLtyTb1NvZTruwO6W acFNu8bs1rNSptMUM7UMUN5YhZqd/mBNzdEw1h42LPGc9T99W63jcOWlusKTEc/LuCO/rcUNpDD QCBS429ruzASP+3QboB+gW6jL7t2gh4BvtIy4uQziN9wWmGp0LN4gBHJxbIz/C7GOuPIinPxd2J d0GfCe/aU2REm5dcWLcGKbglv/ZpcodlqKmKIsTfguv44Lqy1lp3lnkDj9ClXFBO6okkSznMEw2 I8tl7uTpuF/69jmuwSg== X-Proofpoint-GUID: 30sYE5iGn7_SFrilXibtSKE6oDDZoMLr X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-25_01,2026-06-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 malwarescore=0 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606250106 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. Reviewed-by: K Prateek Nayak Tested-by: K Prateek Nayak 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 35e6183ef615..fc6ecb3869dd 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 40584b27ea0c..f3a033b34ba0 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -1359,7 +1359,6 @@ 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); @@ -1371,8 +1370,6 @@ 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