From nobody Fri Dec 19 06:31:10 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6AA5EDEC4D for ; Wed, 13 Sep 2023 12:44:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240657AbjIMMoi (ORCPT ); Wed, 13 Sep 2023 08:44:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231132AbjIMMoh (ORCPT ); Wed, 13 Sep 2023 08:44:37 -0400 X-Greylist: delayed 106189 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 13 Sep 2023 05:44:33 PDT Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [63.216.63.40]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5571B19B6 for ; Wed, 13 Sep 2023 05:44:33 -0700 (PDT) Received: from mse-fl1.zte.com.cn (unknown [10.5.228.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4Rm0Wv3bX0z8XrRF; Wed, 13 Sep 2023 20:44:27 +0800 (CST) Received: from szxlzmapp02.zte.com.cn ([10.5.231.79]) by mse-fl1.zte.com.cn with SMTP id 38DCiMrQ097700; Wed, 13 Sep 2023 20:44:22 +0800 (+08) (envelope-from yang.yang29@zte.com.cn) Received: from mapi (szxlzmapp01[null]) by mapi (Zmail) with MAPI id mid14; Wed, 13 Sep 2023 20:44:26 +0800 (CST) Date: Wed, 13 Sep 2023 20:44:26 +0800 (CST) X-Zmail-TransId: 2b036501aeaa159-29757 X-Mailer: Zmail v1.0 Message-ID: <202309132044261713252@zte.com.cn> Mime-Version: 1.0 From: To: , Cc: , , Subject: =?UTF-8?B?W1BBVENIIGxpbnV4LW5leHRdIHNjaGVkL3BzaTogQXZvaWTCoHVwZGF0ZSB0cmlnZ2VycyBhbmQgcnRwb2xsX3RvdGFsIHdoZW7CoGl0IGlzIHVubmVjZXNzYXJ5?= X-MAIL: mse-fl1.zte.com.cn 38DCiMrQ097700 X-Fangmail-Gw-Spam-Type: 0 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 6501AEAB.000/4Rm0Wv3bX0z8XrRF Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Yang Yang When psimon wakes up and there are no state changes for rtpoll_states, it's unnecessary to update triggers and rtpoll_total because the pressures being monitored by user have not changed. Signed-off-by: Yang Yang --- kernel/sched/psi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c index 81fca77397f6..e4463bb267c3 100644 --- a/kernel/sched/psi.c +++ b/kernel/sched/psi.c @@ -701,7 +701,7 @@ static void psi_rtpoll_work(struct psi_group *group) goto out; } - if (now >=3D group->rtpoll_next_update) { + if ((changed_states & group->rtpoll_states) && (now >=3D group->rtpoll_ne= xt_update)) { group->rtpoll_next_update =3D update_triggers(group, now, &update_total,= PSI_POLL); if (update_total) memcpy(group->rtpoll_total, group->total[PSI_POLL], --=20 2.25.1