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Tue, 7 Apr 2026 19:20:11 +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, tglx@linutronix.de, yury.norov@gmail.com, gregkh@linuxfoundation.org Cc: sshegde@linux.ibm.com, pbonzini@redhat.com, seanjc@google.com, kprateek.nayak@amd.com, vschneid@redhat.com, iii@linux.ibm.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, joelagnelf@nvidia.com Subject: [PATCH v2 01/17] sched/debug: Remove unused schedstats Date: Wed, 8 Apr 2026 00:49:34 +0530 Message-ID: <20260407191950.643549-2-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260407191950.643549-1-sshegde@linux.ibm.com> References: <20260407191950.643549-1-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=KeridwYD c=1 sm=1 tr=0 ts=69d558f6 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=NlpiSR-wqh4DhfsiYFIA:9 X-Proofpoint-ORIG-GUID: A-dBl164gfL984kgXwMbff8PiNqBJou2 X-Proofpoint-GUID: 0X55OKFJUEz_SBazIBPktWWlEdX6BJ5f X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDA3MDE3NSBTYWx0ZWRfX8BjSDKQcVMbc +nEDYZrUSk7ed/ixRkVF/bvXnN+qGnfO1pynHHMVRZb/fR21r8TASMTAerBfXVvveCt5Pa9MZJU RU6IIQcZwTYjkomgB8b87NmWTIORgZKLGherF1aa5M29j/iMsf6sXiG2HeJvUboJZJnpGBUB2P6 zFmHaHLm+mfu6qzohN20zqi5pxGYVxVQ2ARusFrmW8clO/XEISe3v2B9OhIHEgBbjmzROrZbzSE oiSVRmSo/vWgyWy79jLEXRAVs5yAU28PSrD49fKpDjw0PFxxTw75VBUFjIbBhuGVY8ydC/ho/pS 43FTygDM7WnFuf24jdGtWOAYdXL0yvPxATt0u3oGgfZGckRsg6pyIhxYhnqyUAwJ47GQ4tvxUfJ W0rRnFjROMoRuHnZQnuJJL5EUqPAh1FBt8OrJdxVtl87QBJ9AYkxLjlJ8VMpb07Mb3to74hnxrN 8VlNSgzux+lKxRoGgJg== 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=2026-04-07_04,2026-04-07_05,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 impostorscore=0 clxscore=1015 phishscore=0 priorityscore=1501 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604070175 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 8ec3b6d7d718..1eb3825bcaeb 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