From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E816C10DCE for ; Sun, 8 Mar 2020 03:56:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 412D42072A for ; Sun, 8 Mar 2020 03:56:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="FqlwveAZ"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="aFvTt9Pn"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=marvell.onmicrosoft.com header.i=@marvell.onmicrosoft.com header.b="pmEJI+xU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 412D42072A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=marvell.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Content-ID:In-Reply-To: References:Message-ID:Date:Subject:To:From:Reply-To:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QAW7nt6iozoo7y/8WTXfEh2+Un+ytnnrTOQrX6wvJt4=; b=FqlwveAZ5gZ+sf 2s1G38tHtmUvSvEiROcBod1JZ3xf3+KSrL3sob0/zxooS5RTcpUEIAgxM9gw4KqoXSLAf6J5njT0V m6riGZFnnAfnVMKoDJ4EahExw4z3/ZInxtKSA+esL4bsduZ0mSA/qYOqTtErcZAL3pvwJou1HpmUk gS6YVWKXIr8dcXDv3EIWaAbmuVRgIbcqvg6KScxlH0MF0gQxhs0q9t9q0Il5Hc7lf3NIEQNsQLJxC 7wsIVw5Cj+kigtH6zk2vDel0XrkcLOTQKzfjc+PxSpcW8pdp3KBPOSDxrcE12ecW2A8REvDGirC2q cV8esY0oTxKoU8s+ociA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jAn3e-0003MG-NN; Sun, 08 Mar 2020 03:56:54 +0000 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jAn3c-0003Le-ER for linux-arm-kernel@lists.infradead.org; Sun, 08 Mar 2020 03:56:53 +0000 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0283tEk9026867; Sat, 7 Mar 2020 19:56:17 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-id : content-transfer-encoding : mime-version; s=pfpt0818; bh=k0vIAxn3AIo8QaLwrLyG1NeeznnzsFDK5s3ERyd1KbI=; b=aFvTt9PnrOt4CA+9grRuozihx+Edpge8qvwgkKdt7boAqF4jwXl7QFppT70mVn3KWl0w aI6St/VPFT3FLpCr1mdgqgF11Pm1leV9USQYwFR4FXhuP0gFywCeZIPMLHBmASpc2ZJ6 E8Edcq1SUf5WwqyXjRVEUvkV/fTlUhZaDvp9oPSHWJYCKE4DQYL3bFXfQHng2q8vquYy mY2Lu6meN2bzxMIuhkdcze/5/2efZqqDt7tZUPDiSIcHpsCMdlDtKHz8mFAuZM2ROCbU lU/egrWBQQPpf6j9c9xLiLYSy1cURbs0BvmUdZ+P4ZfPfsLpyuXfgVqVLlVsiXdKXNMx Sg== Received: from sc-exch03.marvell.com ([199.233.58.183]) by mx0b-0016f401.pphosted.com with ESMTP id 2ymc0sj26d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Sat, 07 Mar 2020 19:56:17 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 7 Mar 2020 19:56:15 -0800 Received: from SC-EXCH02.marvell.com (10.93.176.82) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 7 Mar 2020 19:56:15 -0800 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (104.47.57.170) by SC-EXCH02.marvell.com (10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1497.2 via Frontend Transport; Sat, 7 Mar 2020 19:56:14 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=k4aqvJs3k/zx959CzOLGJyWBlXOUgSzeJuZcvp0bAJKgGqsDFlx9IxXUcaATVcR9yJAcuePtTAyCxxGxVdcNV927Cve1EEXwD6KaD0pel11iGxwSxcQt1sRe1r5rR3tDMtvoKUdK/yCNajmjcn91SiOPIJJpCymoN3t7ZVCKMdACcO1StohqqxZvlo8Mb0MZ9yTQiM2DTIfBkLefcEo8I4up/pqTUOkJYpJsPW81DqN9ANINup+/2eGmxmtJXo0Kr7dkamokAzIgOT4LONzXAj99/vv3wYjYRN8j+dUIAvgjif+OWdTtpay8z72Oi5rfqvuRHdMEfWD+VvWXd0OyCA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=k0vIAxn3AIo8QaLwrLyG1NeeznnzsFDK5s3ERyd1KbI=; b=HS3ObJ8ZbpNXp9EYD0JEkv7dp493rnYxxBHUZv/9dgwLERUnlkkWqoTqzpBRbEN5TMf/67DWpMESRundXKllesnpMFgjM0EDW5N7FxU2te4bYwjk/nwQiUxXDJsUgc7gaGG8fuRpg7CS6lU5InEnnf88rFVyVNVym91EwgkPJ30gd4AJ+3LyAmP/c0bBQwf0vcVnbx6XPixwKAmRkR7I0fya0lIlqOib7RyzV0gisA52i/RTB+d4GSi7br5sGqku7AM+rtRWtkQPUYM6UVeRWihb2HiAcQ4erasIu8DImDzAyl3pIOsEv43nZMJXuUZPUqjtSzLr5GWiPQK/Ys1SHg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=marvell.com; dmarc=pass action=none header.from=marvell.com; dkim=pass header.d=marvell.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.onmicrosoft.com; s=selector1-marvell-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=k0vIAxn3AIo8QaLwrLyG1NeeznnzsFDK5s3ERyd1KbI=; b=pmEJI+xUk88noa5FnL40505PiOwBfKIg+eRAK15as6D7MAa1+d8ksIyqWyTV0a7c/5dPSv/B/3TvQBOATj0YvGCe3DyH2Tk0QY4fCx7EROF4EzVTH6AO83MANRgbtUknc1geZ+/Wp8JnRUcsRU5W62qvV+4e9oUMl5wysRgsUjM= Received: from BYAPR18MB2535.namprd18.prod.outlook.com (2603:10b6:a03:137::17) by BYAPR18MB2661.namprd18.prod.outlook.com (2603:10b6:a03:136::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.17; Sun, 8 Mar 2020 03:56:13 +0000 Received: from BYAPR18MB2535.namprd18.prod.outlook.com ([fe80::8cd1:1741:8d2d:1c23]) by BYAPR18MB2535.namprd18.prod.outlook.com ([fe80::8cd1:1741:8d2d:1c23%7]) with mapi id 15.20.2793.013; Sun, 8 Mar 2020 03:56:13 +0000 From: Alex Belits To: "frederic@kernel.org" , "rostedt@goodmis.org" Subject: [PATCH v2 11/12] task_isolation: kick_all_cpus_sync: don't kick isolated cpus Thread-Topic: [PATCH v2 11/12] task_isolation: kick_all_cpus_sync: don't kick isolated cpus Thread-Index: AQHV9P2C8Ps2pU+gnk+87Km1UNmHNA== Date: Sun, 8 Mar 2020 03:56:13 +0000 Message-ID: References: <4473787e1b6bc3cc226067e8d122092a678b63de.camel@marvell.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [199.233.58.128] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: e28157aa-2ca2-4fb6-7ad0-08d7c314a567 x-ms-traffictypediagnostic: BYAPR18MB2661: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:873; x-forefront-prvs: 03361FCC43 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(4636009)(396003)(366004)(136003)(39850400004)(346002)(376002)(189003)(199004)(36756003)(4744005)(71200400001)(4326008)(86362001)(2906002)(54906003)(110136005)(316002)(2616005)(8936002)(81156014)(8676002)(81166006)(26005)(186003)(66446008)(66476007)(64756008)(66556008)(66946007)(5660300002)(76116006)(478600001)(7416002)(91956017)(6486002)(6512007)(6506007); DIR:OUT; SFP:1101; SCL:1; SRVR:BYAPR18MB2661; H:BYAPR18MB2535.namprd18.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: marvell.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: BOWGO4LhwRBTMLm5/CQrGqZJPeajT1OFva3gjwLbus+yIY7/6Uo0jBdstk0NOSdUxVZLvfGcZTEQyQEyZ9IV7FlRr9gazC3JxVZzGKiwmv5LgOflqy7eZPc/i5ecqpqvlbEC5eqFP4FfTehtDHaOqpDt4KouKq8csYldMD9oHpVGKu6MG2LzTsugsF9pvwTF/vxl1NeaM2R6igPJKLixSmpm3LBE4OPiuuYwag59YCyKkuZjsAfilEpQxDfcw1SZm6wDhCsmyXQ4vgIU0lpaq9SgcHIKngqUjchxaqLzuuriyNMZmjs/4HtSmY92WJnkMFuBde/QVXSdcO01CikxYAcQtuC+FK28TCmIoUB34HTF3IQewZBdwpdpZ7EPUneiGufMdaMqUlmUwAQwDlE35kaA/mxMzM3FGJ+uU8/Oti+tqg2K3aQMGlPmd534nD4Z x-ms-exchange-antispam-messagedata: ANR7TG8upBWlsjUwlwjj5USQwR0UNR4FGVu+5hrvI4z/CboyKMRlQuLwMRaHKbdC7ii/28Hv02CHJMevElORSo2fnnJtIp69fkDnC+cRj+AUWD9/AKFKS310XCJMEfWHSiY9KFoo54LLU/bPwPXCrw== Content-ID: <0CF0F9A752365D499FA079925E0AB4FC@namprd18.prod.outlook.com> MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: e28157aa-2ca2-4fb6-7ad0-08d7c314a567 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Mar 2020 03:56:13.6429 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 70e1fb47-1155-421d-87fc-2e58f638b6e0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: IB/79jGHa0db6moNctxQP7N15aQ1TpSxdMtMT2QoLICroCaO8nusVbywKuGgsf3+Ffbby1eX2XhklmNF0dYGPw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR18MB2661 X-OriginatorOrg: marvell.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-07_09:2020-03-06, 2020-03-07 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200307_195652_608446_3B4741EA X-CRM114-Status: GOOD ( 12.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-arch@vger.kernel.org" , "catalin.marinas@arm.com" , "peterz@infradead.org" , Prasun Kapoor , "linux-kernel@vger.kernel.org" , "davem@davemloft.net" , "netdev@vger.kernel.org" , "linux-api@vger.kernel.org" , "tglx@linutronix.de" , "will@kernel.org" , "mingo@kernel.org" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Yuri Norov Make sure that kick_all_cpus_sync() does not call CPUs that are running isolated tasks. Signed-off-by: Yuri Norov [abelits@marvell.com: use safe task_isolation_cpumask() implementation] Signed-off-by: Alex Belits --- kernel/smp.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/kernel/smp.c b/kernel/smp.c index 3a8bcbdd4ce6..d9b4b2fedfed 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -731,9 +731,21 @@ static void do_nothing(void *unused) */ void kick_all_cpus_sync(void) { + struct cpumask mask; + /* Make sure the change is visible before we kick the cpus */ smp_mb(); - smp_call_function(do_nothing, NULL, 1); + + preempt_disable(); +#ifdef CONFIG_TASK_ISOLATION + cpumask_clear(&mask); + task_isolation_cpumask(&mask); + cpumask_complement(&mask, &mask); +#else + cpumask_setall(&mask); +#endif + smp_call_function_many(&mask, do_nothing, NULL, 1); + preempt_enable(); } EXPORT_SYMBOL_GPL(kick_all_cpus_sync); -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel