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=-5.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 DCADEC7618F for ; Mon, 15 Jul 2019 12:57:23 +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 95C072080A for ; Mon, 15 Jul 2019 12:57:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="GMgR0jhf"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="FrUgPoyg"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=marvell.onmicrosoft.com header.i=@marvell.onmicrosoft.com header.b="jIwuh0cM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95C072080A 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=RCwVcW6IHKFaKl6w8pD0qIYK1UxzETzqqWtPWmYV35E=; b=GMgR0jhfgEjFin hMmg5jtSwYLI9YOpPktg5/oYwSA6whZe41G7E95pieaLYIvmOiCbEZJxfvH4lGJVaJNuOqkBZcux+ w3w6RvjbFKYHIpOaAg3jBPJUL1aEpiAfrZe/Q24ba1zzhGXjhUs8p7fDMilC3BV57cmJ6pJ12u0ok mZf7/D4QObdR+xsjbF9ETz6M+pb7RFfTfCD5TfLci2emfdOV8bLF+gTYhYsTrI9kI7yNjWwoJGcrR ZcF71HbKB57jx+QeF3TpISfg76y7sVYv/URzGi/68yB2C6x7jdfb6ULOYsm/Ry258e2V0cI3Wg+Oy EV0nulgcl0UUcpdL09Ug==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hn0Xg-0000R8-Du; Mon, 15 Jul 2019 12:57:20 +0000 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174] helo=mx0b-0016f401.pphosted.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hn0Lq-0003xM-12 for linux-arm-kernel@lists.infradead.org; Mon, 15 Jul 2019 12:45:09 +0000 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x6FCe3Xr013068; Mon, 15 Jul 2019 05:44:18 -0700 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=WVJMoMVl7P6W83UYT8sT7K/iqAGxdYPNKEOn2BAb7jI=; b=FrUgPoyglssbDvlTIkkBhOcJdMn2DML3jCEebA4dyzi/GMUGENDxWBn5lv2sysU4nfHs +CmnZt6IMOiQ4p/bH843HR3mnFr7edMQRx+jzieOS3P/ql5lqyX3EgNr/oKVztWm/u5Z evfWOs6veb5Nc+Z4YfPFzukt03SmtjEWmbXWrjEKkeLsbWrsxIpGOXtgrhF4TS74gWFK i1SeHKOvdk3KabehtLDI7QLcW1SoiEYD7f2TAdiCpzou3ZtmMnZQEecaUVy0F/f1mgjA nZPGZElR0HgmhYIopMKGAbnqwWfKdSkSmCNbhobva3/9dfL3atsOi+nQNNkrJzY4iCyP HA== Received: from sc-exch04.marvell.com ([199.233.58.184]) by mx0a-0016f401.pphosted.com with ESMTP id 2tqcnpqg2v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 15 Jul 2019 05:44:18 -0700 Received: from SC-EXCH03.marvell.com (10.93.176.83) by SC-EXCH04.marvell.com (10.93.176.84) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 15 Jul 2019 05:44:17 -0700 Received: from NAM04-BN3-obe.outbound.protection.outlook.com (104.47.46.58) by SC-EXCH03.marvell.com (10.93.176.83) with Microsoft SMTP Server (TLS) id 15.0.1367.3 via Frontend Transport; Mon, 15 Jul 2019 05:44:17 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=id3GnSmY9MBsH2LO6rXX4av+MahmM85QJ1lhRd/31YHRXKxVuVmMVvmM8YT00tI24w6souBfwjrxz7P58miFbO6RxfuMwb7OBSuAfIbCyS3tn+Sp5LALdWTvs0GDM5OmiUYi5pza1T3Gm1y6Qd14YmztuYFivUuiQuK79Bobc7aQTWzacOWQNP/Rj8JfCinMqK2bBNH68/aG5SUAbl4vIino0M+7RqvW4cmjnfw9/yZ6Ddbb+tmP3ZZ18uJFoBFtwSlI3Ti4/nLYn3zpPn+vkFti+Fp41HKGsXMaiO8WSqtAfpfv0F9orevVR8Dpe044sCUBLthjNZ64NUua/g0TFw== 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=WVJMoMVl7P6W83UYT8sT7K/iqAGxdYPNKEOn2BAb7jI=; b=IN2wmcCgeeCpVR7yU3m69M9FfXtqyqjehJK7q1jJhJzQJ4SNDy67TeXC9LtM/u8wgVC5nheR6US21Eg0Zlb56wN0Xdpa2avfbb+O4nmErmdbpv0h9dnylo8FFbwnW/0ZsTx35imsaC9E/jiLrzkizikXyKV4TEqWSa8VGkBr0kb0gbaU7kT0UnD8lj0DuD57J4sQ1HbGrwNR6mftAaDTvwBjfj6oSWsvZx4ko/MPTlatOQ8BZu90DuzPCskpEqF1HJ16TUBJmG51g/lPY0TjHzq6Om910DYz6YXhRVGVZp0B7vh2D9cewKRS+qi/oCTS9wnPEYtOIzEbF4YFDIyFnw== 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=selector2-marvell-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WVJMoMVl7P6W83UYT8sT7K/iqAGxdYPNKEOn2BAb7jI=; b=jIwuh0cM37eXecuyadqmmIzZZ4nCMrg1hOQBD9oPDA2RfpZjQbDS0drkwkOke5Vs9RRqOZCDvSOYTjoOYO4vdJz2r1vsUA4F8m4TZkpLcwZMBakelxTUHEWpcKArgTPlgUjf7jDzhUV232K5ozbL81QDlxbsXkz8r4MdTLlYoTU= Received: from BL0PR18MB2339.namprd18.prod.outlook.com (52.132.30.139) by BL0PR18MB2177.namprd18.prod.outlook.com (52.132.29.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2073.14; Mon, 15 Jul 2019 12:44:12 +0000 Received: from BL0PR18MB2339.namprd18.prod.outlook.com ([fe80::430:a80b:100e:f333]) by BL0PR18MB2339.namprd18.prod.outlook.com ([fe80::430:a80b:100e:f333%3]) with mapi id 15.20.2073.012; Mon, 15 Jul 2019 12:44:12 +0000 From: Jan Glauber To: Will Deacon Subject: Re: [PATCH v5] arm64: kernel: implement fast refcount checking Thread-Topic: [PATCH v5] arm64: kernel: implement fast refcount checking Thread-Index: AQHVNxoBu+l5E3cPPk63WcWp+uMugKbLp8KA Date: Mon, 15 Jul 2019 12:44:11 +0000 Message-ID: <20190715124403.GA14408@hc> References: <20190619105431.2630-1-ard.biesheuvel@linaro.org> <20190703134028.6aru52r2zd2jnpm4@willie-the-truck> <20190710122117.kk5xgei56r7vfmmj@willie-the-truck> In-Reply-To: <20190710122117.kk5xgei56r7vfmmj@willie-the-truck> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM5PR0601CA0046.eurprd06.prod.outlook.com (2603:10a6:203:68::32) To BL0PR18MB2339.namprd18.prod.outlook.com (2603:10b6:207:44::11) x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [78.43.214.147] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: bb3b4b80-a18d-4d21-eed5-08d7092222f1 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:BL0PR18MB2177; x-ms-traffictypediagnostic: BL0PR18MB2177: x-ms-exchange-purlcount: 1 x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-forefront-prvs: 00997889E7 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(7916004)(4636009)(346002)(366004)(376002)(39850400004)(396003)(136003)(199004)(189003)(76176011)(478600001)(66066001)(14454004)(52116002)(2906002)(476003)(68736007)(186003)(25786009)(7736002)(446003)(11346002)(386003)(6506007)(102836004)(256004)(33656002)(8676002)(966005)(26005)(305945005)(6116002)(6436002)(8936002)(33716001)(3846002)(6246003)(4326008)(6486002)(229853002)(486006)(81166006)(81156014)(316002)(54906003)(4744005)(86362001)(71200400001)(71190400001)(66946007)(66476007)(66556008)(64756008)(66446008)(5660300002)(1076003)(99286004)(6916009)(6306002)(53936002)(9686003)(6512007); DIR:OUT; SFP:1101; SCL:1; SRVR:BL0PR18MB2177; H:BL0PR18MB2339.namprd18.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: marvell.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: dXZXbwB41adS3tgb7DCCtm49B/6/tmK8YPAXeihDcYKX7KwtT0xDEZRK++GMk8AMHQFjNtwszs6g3lJg1pGQTF7C6z4/+hWXA8QobsKnQLIqgPTo6g7GJ4odIU7me4ONyX8nSgXVldqU7VneqKeMNMd6vE6Ft2809PiKfJzlECTWsoajp4UA1ITVrdb4LQSqSNUJFda0gPaev0R7EQa2WUzFix4nY8le9bzONBIaeYeeM2oO4pfNuzUIbZphq0cikAVzi4jIBhsH3I/8Vb3mVcE0uFio8POCK+ABd12giQB8Vck6MFsfY10+wGPPPqFe4zF4ZFXTlDBqHGkohvgEaARNR6RkzcGLAHQfbiziXLva2uUBPEVL+xDcvYamt9CuDaPzAYlBcXCmPbTqCq+6qv85GmOE3Mxa1LAdxsk5L1g= Content-ID: <794D9ACCAE81904A9C4761AB9EFA53A1@namprd18.prod.outlook.com> MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: bb3b4b80-a18d-4d21-eed5-08d7092222f1 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Jul 2019 12:44:12.0890 (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: jglauber@marvell.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR18MB2177 X-OriginatorOrg: marvell.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:5.22.84,1.0.8 definitions=2019-07-15_03:2019-07-15,2019-07-15 signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190715_054506_555934_8C9A6972 X-CRM114-Status: GOOD ( 10.63 ) 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: Kees Cook , Ard Biesheuvel , Catalin Marinas , Will Deacon , Jayachandran Chandrasekharan Nair , Hanjun Guo , Linus Torvalds , linux-arm-kernel 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 On Wed, Jul 10, 2019 at 01:21:18PM +0100, Will Deacon wrote: > I'll post the patches after the merge window, but I've pushed them here in > the meantime in case anybody gets a chance to take them for a spin: > > https://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git/log/?h=refcount/full Performance of this series is on par to Ard's v5 on TX2. --Jan _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel