Received: by 2002:a25:ef43:0:0:0:0:0 with SMTP id w3csp1101359ybm; Fri, 29 May 2020 22:02:21 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxRCkK/PTqgAj8MpQ6eU2GTMb6zJEauJUumw0uJCI1GLdSxdncHFU89gFPA0fAXQM7A6LHG X-Received: by 2002:a7b:c5cc:: with SMTP id n12mr11615205wmk.69.1590814941020; Fri, 29 May 2020 22:02:21 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1590814941; cv=pass; d=google.com; s=arc-20160816; b=Ubs+GbhkvYy7ICnVft+bJQBBSZDg2uTJ9jMFYWRmW5k+T3M+g9Mh7eiSHI9tXszmzW CIJYlwDLGA8TZQo5QVAP13vfsho5Yjc1n7iZHOFwFJbYszijGv/L0ARruTISLcUhjWQ8 3Me53dFa24NYbmDUeWZjr3cGGSe5LzrIQLeAKkSXNMwTXyU+rpXqFX7nC7t/OswDwWZp i3L3QQGsbe1AGree2HYGtSVZQe3+xPAXKsW7DkiPLnO07+s5uzBxBUoVNn2MvpoTVn2u 4aYrjWkD939F2Nagcf8d0a8hwGd5hsGuTLpMNfzWcTYeYUNFoIpgSVx/4Tz4TaM+f0Od wxFQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature; bh=6fbqkmXyqi0fuCaFF05ccoqVs5JdP3W73rSGRx4ay7E=; b=YyaK/NFUm33C9CnQFK1M9GvHlBmzkyN1CgVu7cr+hcr6IAoiw71DpS5JKCE1G0Ff3f D0/Rz4DOIIgb5d8C08oRKHJpfxDQOLDyeVG6hi5YyGGWDcf0YLC1C6bKzwYaYr0MXnOI xTewUokVIB+d1h8TSgQJocyLIcX1fnvolECUAYF8VI4/0L0AuY9mZTwiP+4B8aYFDbzS HJdGwQHJXvh0ODIElbPwfHF/2sDzWWHH3RKAM21OqmrMsxktP0K7tAJckLEgpbMMLYWm JoUctZDEcBwJWVxbNvKlpXqRbPPcOPK8MVEbyeADSAiFGNxvhhLFyKLsYdYN8JYx5Jo4 GPtg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@whamcloud.com header.s=selector2 header.b=xF4HVgbm; arc=pass (i=1 spf=pass spfdomain=whamcloud.com dkim=pass dkdomain=whamcloud.com dmarc=pass fromdomain=whamcloud.com); spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=whamcloud.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ce7si7035792edb.483.2020.05.29.22.01.57; Fri, 29 May 2020 22:02:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@whamcloud.com header.s=selector2 header.b=xF4HVgbm; arc=pass (i=1 spf=pass spfdomain=whamcloud.com dkim=pass dkdomain=whamcloud.com dmarc=pass fromdomain=whamcloud.com); spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=whamcloud.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725889AbgE3FBn (ORCPT + 99 others); Sat, 30 May 2020 01:01:43 -0400 Received: from mail-bn8nam12on2079.outbound.protection.outlook.com ([40.107.237.79]:44513 "EHLO NAM12-BN8-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725813AbgE3FBn (ORCPT ); Sat, 30 May 2020 01:01:43 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Aafafpokit/19/cWNHreJH4wzn22TyiJULLKZgH4KB7y9uznYM2mUieJtbjTVA7CxcuZSgBYXC6Fgus8CgF9o/aGo1gnqBaG+AfbJOZxh8bUyw9ftdOp3XrNgigBLoU3SN3ou+zAC+AY8hnDKuQdpUjqDNcG4MEL1SY1YpPBD3E5mpplXtZ0rx5C9k2otsLGuaQgyxTCh5xRNWOjyTHTUb54Vgpt2AWc0PcjutL8AfqjYZlyIIs3+0R+HUqFvR6ibpvRMwnWYuUxMTFiwoSSLWobep3JeFsXDvCPCJW2N6+/yUSSyPsF1PcDqYzHw49oCylm8OAVd+IjtU/vaOwQoA== 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=6fbqkmXyqi0fuCaFF05ccoqVs5JdP3W73rSGRx4ay7E=; b=kd/z6fnNk1ZCpT9tKTWDahJTOB7VIkCjNTdye01aeLI1X7m2Q794WmZLhiWpo5QkovVyPFBsrC29M/7mrqRv/ejfVF/+mfMMEij9I0CcL43rSXtNUfK1QIXyqFEZuJH1YYi26BBmp2XOLAcjhqys0dd9lshOfDNfFjxeHLugxg2zuOo1fzA8s6ROCwdShhJlD3Qb8QOtpoBscDDw/6+5CXgvOWhUGsu9sQdUTS2+J5rHXBP1BT4uSz02NfHjJHDx9HXU6uq4aVvkK0Qcq52RE4XROVHo6gW4geT4Uh+6OxXDk3Q+CCTKyx5qdRbFCOIIKzWaJmEtfEMiU5Aj71Me8g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=whamcloud.com; dmarc=pass action=none header.from=whamcloud.com; dkim=pass header.d=whamcloud.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=whamcloud.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=6fbqkmXyqi0fuCaFF05ccoqVs5JdP3W73rSGRx4ay7E=; b=xF4HVgbmZa+9Y0KMWH4eO0s+0TG3qDwedYWDn0pCyntAdiqtuBSYFmEG2hhmtVeW5rEdtrhVDQmbUfPlWvaAhQfvGEpCdDWU+A1I/Bt6IXUVcTop8K/UlF4DXR0oHG9Cbn3AAqMj0pdMqLChyLmQcmUkP/+kC44zVagHjQG2NzE= Received: from DM6PR19MB2441.namprd19.prod.outlook.com (2603:10b6:5:18d::16) by DM6PR19MB4248.namprd19.prod.outlook.com (2603:10b6:5:2b0::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3045.17; Sat, 30 May 2020 05:01:40 +0000 Received: from DM6PR19MB2441.namprd19.prod.outlook.com ([fe80::f1b0:78b:8c87:47c3]) by DM6PR19MB2441.namprd19.prod.outlook.com ([fe80::f1b0:78b:8c87:47c3%4]) with mapi id 15.20.3045.018; Sat, 30 May 2020 05:01:40 +0000 From: Alex Zhuravlev To: =?utf-8?B?0JHQu9Cw0LPQvtC00LDRgNC10L3QutC+INCQ0YDRgtGR0Lw=?= CC: "linux-ext4@vger.kernel.org" Subject: Re: [PATCH 1/2] ext4: mballoc - prefetching for bitmaps Thread-Topic: [PATCH 1/2] ext4: mballoc - prefetching for bitmaps Thread-Index: AQHWKqCXlzEPeqf4R0Gj8cV11zoPPqi/VJEAgADU+4A= Date: Sat, 30 May 2020 05:01:40 +0000 Message-ID: <895DB4D0-0F00-4467-A87F-33222443615A@whamcloud.com> References: <262A2973-9B2D-4DBE-8752-67E91D52C632@whamcloud.com> <90289086-E2DD-469A-86E2-3BB72CAC59E0@gmail.com> In-Reply-To: <90289086-E2DD-469A-86E2-3BB72CAC59E0@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=whamcloud.com; x-originating-ip: [95.73.67.242] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 42bc3988-7539-418c-5bd0-08d8045689fa x-ms-traffictypediagnostic: DM6PR19MB4248: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5516; x-forefront-prvs: 041963B986 x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: ixZIDETOR1pILSkV8zQZcqQuKV+jPyrvPue4FwNJcg5Sd8gp3kpN7iQsrG9alfdsJeUWytuUq5gkpv3ENaImeBGev7TVyWX1uBGSIcOKWyuhjwbetjyj+Atvm0lmn8qENl46X9bZyU5ejinmmE64W476g6aKd/RYaLsF4kFVzDeAEw3i05lE6yFMV0kvPHOq3rUiP21V0BVAe15Wpj8oERUTSms+PqnkUZEqyPDHS4KoHjT1PP7HX8DkRD9XzBRk00ZNmNax7RdyUxnc1mcTtDFCM97PtMjwM2XrCvxkSEXAu7+6tOuomhpAuLrxJ99TVeolU50o7/OD1kj8EdHsXA== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM6PR19MB2441.namprd19.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(396003)(39850400004)(366004)(136003)(346002)(376002)(6916009)(6506007)(8936002)(36756003)(8676002)(33656002)(2616005)(53546011)(86362001)(91956017)(66556008)(6486002)(478600001)(5660300002)(64756008)(71200400001)(66446008)(83380400001)(66946007)(316002)(2906002)(66476007)(76116006)(4326008)(6512007)(26005)(186003);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: pH93jWFwuQmODZ85zbOTGPRnfR53x4ZlDMKxLYK3IKG8VoKv1TiLGmpI9uc6LQ7ERY4vqi5cjzhBp28Oa8Wn5wNMffZkJJVPPOVjvNoW3pSOOOY6ag5oosyei6rWCp1cK41a8kVb0pXhkvAm66knMZqstZqtSUNTaf6gR2C+gxWZ2/gElfOHiVpHttTlQSSGLScGtidv9usV5SblHeJ7qHU2nMRsbF8pHY2ep3i3xQSS/ZkCdnnOSMx8vQEwoJInkalhItCWJradTMn3Uq57TsuaDAerMUeTApknPGXzdXhW4TzXuIo/wnr6Ra2sfj0tfYJEkqdorTYTZWT+qj465uq+MdU5Q5bbybBnzW8F1wLGfBHtqOGcBSZcXKe1h0+FGBzXoWz/RIraAsPzfrZSxOvEg1/Im5QuPjAWzl0Na3niRBnnfHx08YpvwcRL8SQgODFNmW0yJ2/3N9OcB/JaBIwAI0dCGVSAJjhCyvOKLO0= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="utf-8" Content-ID: <0798EB8C5D245B41B6A583C49DC0D582@namprd19.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: whamcloud.com X-MS-Exchange-CrossTenant-Network-Message-Id: 42bc3988-7539-418c-5bd0-08d8045689fa X-MS-Exchange-CrossTenant-originalarrivaltime: 30 May 2020 05:01:40.0190 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 753b6e26-6fd3-43e6-8248-3f1735d59bb4 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: DrmpKPaqNP5+o5LOKMgCV07qpr6vYwFMVy933HdH0Ebc/FiFcwwCovEbIlB699gHDCD3WEYgbT80omIBuRCaXw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR19MB4248 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org DQpIaQ0KDQo+IE9uIDI5IE1heSAyMDIwLCBhdCAxOToxOSwg0JHQu9Cw0LPQvtC00LDRgNC10L3Q utC+INCQ0YDRgtGR0LwgPGFydGVtLmJsYWdvZGFyZW5rb0BnbWFpbC5jb20+IHdyb3RlOg0KPiAN Cj4gQWxzbywgd2UgaGF2ZSBlbmNvdW50ZXJlZCBkaXJlY3RvcnkgY3JlYXRpbmcgcmF0ZSBkcm9w IHdpdGggdGhpcyAobm90IGV4YWN0IHRoaXMsIGJ1dCBMdXN0cmUgRlMgdmVyc2lvbikgcGF0Y2gu IEZyb20gNzAtODBLIHRvIDMwLTQwSy4NCj4gRXhjbHVkaW5nIHRoaXMgcGF0Y2ggcmVzdG9yZSBy YXRlcyB0byB0aGUgb3JpZ2luYWwgdmFsdWVzLg0KPiBJIGFtIGludmVzdGlnYXRpbmcgaXQgbm93 LiBBbGV4LCBkbyB5b3UgZXhwZWN0IHRoaXMgb3B0aW1pc2F0aW9uIGhhcyBpbXBhY3QgdG8gbmFt ZXMgY3JlYXRpb24/DQo+IElzIHBsZW50eSBvZiBmaWxlcyBhbmQgZGlyZWN0b3JpZXMgY3JlYXRp b24gY29ybmVyIGNhc2UgZm9yIHRoaXMgb3B0aW1pc2F0aW9uPw0KDQpOb3RpY2VkIGFzIHdlbGws IHRoZSBsYXN0IHZlcnNpb24gcG9zdGVkIHRvIHRoZSBsaXN0IHNob3VsZCBoYXZlIHRoaXMgcHJv YmxlbSBmaXhlZC4NCg0KPiANCj4gQ2FuIGJlIHVzZWZ1bCBnaXZpbmcgYW4gYWJpbGl0eSB0byBk aXNhYmxlIHRoaXMgb3B0aW1pc2F0aW9uPyBBcyBvcHRpb24sIGJ5IHNldHRpbmcgc19tYl9wcmVm ZXRjaCB0byB6ZXJvLg0KPiBOb3cgMCBhdCBzX21iX3ByZWZldGNoIGFsbG93cyB0byBza2lwIHRo ZSBvcHRpbWlzYXRpb24gZm9yIGNyPTAgYW5kIGNyPTEuIA0KDQpzX21iX3ByZWZldGNoX2xpbWl0 PTAgY2FuIGJlIHVzZWQgdG8gZGlzYWJsZSBwcmVmZXRjaGluZz8NCg0KPj4gKwkvKiBsaW1pdCBw cmVmZXRjaGluZyBhdCBjcj0wLCBvdGhlcndpc2UgbWJhbGxvYyBjYW4NCj4+ICsJICogc3BlbmQg YSBsb3Qgb2YgdGltZSBsb2FkaW5nIGltcGVyZmVjdCBncm91cHMgKi8NCj4+ICsJaWYgKGFjLT5h Y19jcml0ZXJpYSA8IDIgJiYgYWMtPmFjX3ByZWZldGNoX2lvcyA+PSBzYmktPnNfbWJfcHJlZmV0 Y2hfbGltaXQpDQo+PiArCQlyZXR1cm47DQo+IA0KPiBBIGNvbW1lbnQgYWJvdmUgc2F5cyBwcmVm ZXRjaGluZyBpcyBsaW1pdGVkIGZvciBjcj0wIGJ1dCBjb2RlIGxpbWl0IGl0IGZvciBjcj0wIGFu ZCBjcj0xLg0KPiBEbyB5b3UgbmVlZCBjaGFuZ2UgdGhlIGNvbW1lbnQgb3IgY29kZT8NCg0KT0sN Cg0KPj4gKwlpZiAoc2JpLT5zX21iX3ByZWZldGNoID4gZXh0NF9nZXRfZ3JvdXBzX2NvdW50KHNi KSkNCj4+ICsJCXNiaS0+c19tYl9wcmVmZXRjaCA9IGV4dDRfZ2V0X2dyb3Vwc19jb3VudChzYik7 DQo+PiArCS8qIG5vdyBtYW55IHJlYWwgSU9zIHRvIHByZWZldGNoIHdpdGhpbiBhIHNpbmdsZSBh bGxvY2F0aW9uIGF0IGNyPTANCj4gDQo+IERvIHlvdSBtZWFuIOKAnGhvdyBtYW554oCdIGhlcmU/ IEF0IGNyPTAgYW5kIGNyPTE/DQoNClllcywgb2YgY291cnNlDQoNCg0KVGhhbmtzLCBBbGV4DQoN Cg==