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Wed, 17 Jun 2026 17:43:54 +0000 (GMT) Received: from li-7bb28a4c-2dab-11b2-a85c-887b5c60d769.ibm.com.com (unknown [9.39.28.77]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 17 Jun 2026 17:43:53 +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 v4 12/20] sched/debug: Create debugfs folder steal monitor Date: Wed, 17 Jun 2026 23:11:31 +0530 Message-ID: <20260617174139.155540-13-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260617174139.155540-1-sshegde@linux.ibm.com> References: <20260617174139.155540-1-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-Proofpoint-Spam-Info: AW1haW4tMjYwNjE3MDE2NiBTYWx0ZWRfX2EKzMyo7VRFL pIAu/WhG8wmUlRW7+kU4HFbv2el0yGc0mBVOoqd/SO0VZVGjIx8aWd7IpWG2bc1E/tyl5egE9uX ASEoyH76Bu9mKxdRHjzdIGgQrSYthLY= X-Proofpoint-ORIG-GUID: a4LPHX2zEJrxbFAiePBf27fBQM-n_0Xn X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE3MDE2NiBTYWx0ZWRfX9Wu6DyqtCHmf sRWenNrZyZBuxlxA5VuNvBj2xBFsl7wdUTOkmq0uVOR972Aj8gAxIVv7JghGkL+t6E2EoMh8z7f HCYWqZIL/SrdVuVIsDnHZgNpVjWga3xS6pzFCuVpkzCOFeH5XYm7P/oEguT5Bprs4JkkdzQIbxg UtQAnYMJ1WCEJtDkU/Q30/LKS1lRRYmoDmvoshtGbA0xXh+VRhh0HW/jtGssk2ev4DLRPz8c7xN ak95ytqa5R0IIv2/av3F/PM0sONQXWSHLax5D53k4+Hnr0KCEjMPDhs0lJBKw2gneAypcaQDL9P Bj4vof06o02EG+RYNZKunws4CfBe9M1vFFLldhBMQYkIzYSp+s6OmZSiAwHI2VM1IOc1UASWMJQ qwUczQEugO5lrjCMKKyaIVWkwgN6V9tT3tmQqdySE6kNNld21Qch6Mj0AR+9sN/L8kF19gzAn5j SOrz1kNa4bXWhw07xDA== X-Proofpoint-GUID: tgHOotWXqnLx1Iq5AkhW3VYhLBw2YmBR X-Authority-Analysis: v=2.4 cv=L9gtheT8 c=1 sm=1 tr=0 ts=6a32dce6 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=Wx6S8-2tUkkEJfYxAh0A:9 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=2026-06-17_02,2026-06-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 malwarescore=0 clxscore=1015 adultscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606170166 Create a debugfs folder called steal_monitor in /sys/kernel/debug/sched This is going to host debugfs knobs needed for generic steal monitor that will be introduced in subsequent patches. Signed-off-by: Shrikanth Hegde --- kernel/sched/debug.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 106b448cafb6..d1532359fc50 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -633,6 +633,17 @@ static void debugfs_fair_server_init(void) } } +#ifdef CONFIG_PREFERRED_CPU +static void sched_steal_monitor_debugfs_init(void) +{ + struct dentry __maybe_unused *sm; + + sm = debugfs_create_dir("steal_monitor", debugfs_sched); + if (!sm) + return; +} +#endif + static __init int sched_init_debug(void) { struct dentry __maybe_unused *numa, *llc; @@ -691,6 +702,10 @@ static __init int sched_init_debug(void) debugfs_ext_server_init(); #endif +#ifdef CONFIG_PREFERRED_CPU + sched_steal_monitor_debugfs_init(); +#endif + return 0; } late_initcall(sched_init_debug); -- 2.47.3