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Thu, 14 May 2026 15:24:40 +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 15:24:40 +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 13/20] sched/debug: Create debugfs folder steal_monitor Date: Thu, 14 May 2026 20:51:57 +0530 Message-ID: <20260514152204.481115-14-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-Proofpoint-ORIG-GUID: jF2jqTTMDpaDSrJAkaQH1XOWBlm1qgDr X-Proofpoint-GUID: RdWtgBXt6yYFuAB04A8OKjmYbvd3tPPG X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTE0MDE1MyBTYWx0ZWRfX3rl0A6X7C7FB hBwZ+OGxOoj6jgegK59brQEXJcIhw5Mm8pTvh2AQQe5WAj/R7ti6kj0W4svwJu/W9Xag5fSdOxz UtgiiMmWRoKxU5RA8eUgIDYcCoxdh0rt0wnl25YM8Q4b5Rsw3sfCRmfY+adq/SvxUqgxoFqJ0aH M+7FEhEh0JqZE3Kxv7R6Bq9BP5vr6hA4q3DtuNAb4Sl42cpFdEPLATuXzMa+fTEHcgOhwpzHWYl SfzSc2cijO0yC3eIRoy8EPR0Dq9fEw6uKQ2F7CCq3KIWHblUpoDB4t7r70nrastDWcG/6UUCDN9 AHdjxh1uerkLBT4py5zcg33bV7aXeJij/VE00rGwEL8HJxP9FG2U17bNpfN7lquo5a/uw8mjr7P kWgqqXDxqn1z+uPo65WPzaK7+62iGf1dJDG55ucQeHQg5q6rLpFDiNBxbAz4GaNTNvfF3B3CSAc NjOB+meeETxbTA/JT3Q== X-Authority-Analysis: v=2.4 cv=P8UKQCAu c=1 sm=1 tr=0 ts=6a05e945 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=Wx6S8-2tUkkEJfYxAh0A:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,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 adultscore=0 priorityscore=1501 phishscore=0 bulkscore=0 clxscore=1015 malwarescore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605140153 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 | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 482c86a0ff80..b1abfdc168bf 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -591,6 +591,17 @@ static void debugfs_ext_server_init(void) } #endif /* CONFIG_SCHED_CLASS_EXT */ +#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; @@ -632,6 +643,9 @@ static __init int sched_init_debug(void) #ifdef CONFIG_SCHED_CLASS_EXT debugfs_ext_server_init(); #endif +#ifdef CONFIG_PREFERRED_CPU + sched_steal_monitor_debugfs_init(); +#endif return 0; } -- 2.47.3