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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79CDEC77B7A for ; Wed, 31 May 2023 12:31:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235624AbjEaMbs (ORCPT ); Wed, 31 May 2023 08:31:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230341AbjEaMbr (ORCPT ); Wed, 31 May 2023 08:31:47 -0400 Received: from esa2.hgst.iphmx.com (esa2.hgst.iphmx.com [68.232.143.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DEBB38E for ; Wed, 31 May 2023 05:31:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1685536305; x=1717072305; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=MvXxDbX5XQoFj5oLiWUiIKzePAbabzU/SbERU8tw48o=; b=fXLGAc1OtIoX7Bkn9SqoGetN8G1xoWmBTgShOCTArtoWINjPokVSncHU fr2Jtxes2JaoGIRS7RRt7kurMSKZMDT9kaKT2zf67X7hxeR4xqkcNZTTX mzugbrthjnnyiksVDq4k8N9QYQpAyI5M+aQ/UVeSVi35FkfVxnrxX/W6k FiHOKE4Dbsi4B7ZRhNzfEXKz9HIKLAmOyeu6CmMKgz/Y18Mam2Vbt5Pft dL8IYmmwS6J8z23w3mL4v2rGQ18Cd2lZW3TmzIkeep1JMiJ81cLvxuTMY ErdxCD+0TRFaY3LXqP30c8gZyVOlYdrb2g1Zks/oqGbBVabP+g5lFvZ/M A==; X-IronPort-AV: E=Sophos;i="6.00,207,1681142400"; d="scan'208";a="336552263" Received: from mail-dm6nam12lp2175.outbound.protection.outlook.com (HELO NAM12-DM6-obe.outbound.protection.outlook.com) ([104.47.59.175]) by ob1.hgst.iphmx.com with ESMTP; 31 May 2023 20:31:27 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=PcKhMZ8pLkiqV5D2DG6X7Bw6dzMzaHZN+db/Qguup33RPy5D64cs4cz+W1tZJpVUkiPcfiZaaq/U+Mgau3aewws8aAdi9V4oZAqb/vUKxtpuAtlIWQTTYLwU2qfa/NlmHDhB5jXctq1SfsTsF854uK0JEyQa4WBs1gvO1aFpkxPMh62AQ1spONBSlPBIc2cNoQ/WswpdzRsqq3Qb/E95Lt7a2tb3W1suHpkqDh9iALcBLdRt/39Wq2Nc6xcMEzPVdiT6aad5LpCq7ODMiNu9Rl/3oXP34bZvpdipqJrEt40tKB61IRL5VfbFpC6Adg/5cGgGkuc+2VbVUAwsRkzAGQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=MvXxDbX5XQoFj5oLiWUiIKzePAbabzU/SbERU8tw48o=; b=ZNW6pfL6CMEHfq/9kFtutpyyxYiGV5VRxMDdhnmDC02+xZrwIl1E/UOSigpVnC5OVCNZ7AannnwPFz7umIBxlVzAbtXskzFGsXyp01V59OPjFYWPBNi3o415cCrRI92tg7b6EG6EJ6ZcUlM7NtEEvro9SJXq47DPspvfQNg8C7A2eTLiih3djcVzfwfFRco7egMEZXPB/guAQCaW9rKpee0V9pcVOLLjcue43SN+FQg5ISL9MdqNghWWroXqUK4NEBP6uLFTWxPexfG9K9W+wVCs+TKtsDWSfO9V2NfwCRWFu2k658V1o7LOlopcLvInMjd+Gy4gfOHcCQMXAPSSAw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=wdc.com; dmarc=pass action=none header.from=wdc.com; dkim=pass header.d=wdc.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sharedspace.onmicrosoft.com; s=selector2-sharedspace-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=MvXxDbX5XQoFj5oLiWUiIKzePAbabzU/SbERU8tw48o=; b=aeoHk538ibWASiolSGtA7Dl5R29KRse6CdVltlp4JnsEARRdTp8ZbGSW9pilFp0MrgtGzxvWzen1RMoQP+RfwG0N1YSQAwoElzumclUQLp1n3Zp0QNslepSDlK8yv6EOsC5+z4XjwFtt+FhdulhyimE78vSdz3wyT4i4FOycb6E= Received: from PH0PR04MB7416.namprd04.prod.outlook.com (2603:10b6:510:12::17) by DM8PR04MB7846.namprd04.prod.outlook.com (2603:10b6:8:39::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6455.22; Wed, 31 May 2023 12:31:25 +0000 Received: from PH0PR04MB7416.namprd04.prod.outlook.com ([fe80::8c4d:6283:7b41:ed6f]) by PH0PR04MB7416.namprd04.prod.outlook.com ([fe80::8c4d:6283:7b41:ed6f%7]) with mapi id 15.20.6433.022; Wed, 31 May 2023 12:31:25 +0000 From: Johannes Thumshirn To: Qu Wenruo , Christoph Hellwig , Chris Mason , Josef Bacik , David Sterba CC: "linux-btrfs@vger.kernel.org" Subject: Re: [PATCH 2/6] btrfs: optimize simple reads in btrfsic_map_block Thread-Topic: [PATCH 2/6] btrfs: optimize simple reads in btrfsic_map_block Thread-Index: AQHZk3biBbz5OeHUeEWElHaztR0/Jq90EjCAgAA+gQA= Date: Wed, 31 May 2023 12:31:24 +0000 Message-ID: References: <20230531041740.375963-1-hch@lst.de> <20230531041740.375963-3-hch@lst.de> <6997cf68-8775-f518-9b7d-2dbc15b5ce58@gmx.com> In-Reply-To: <6997cf68-8775-f518-9b7d-2dbc15b5ce58@gmx.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=wdc.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: PH0PR04MB7416:EE_|DM8PR04MB7846:EE_ x-ms-office365-filtering-correlation-id: 59bf311d-3e17-410e-885d-08db61d2f2e7 wdcipoutbound: EOP-TRUE x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR04MB7416.namprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(376002)(346002)(366004)(136003)(396003)(451199021)(38070700005)(38100700002)(82960400001)(122000001)(31696002)(86362001)(36756003)(6486002)(2616005)(53546011)(6506007)(6512007)(186003)(4744005)(8676002)(8936002)(2906002)(41300700001)(5660300002)(110136005)(66556008)(71200400001)(31686004)(4326008)(66476007)(76116006)(478600001)(66446008)(316002)(66946007)(64756008)(91956017)(83380400001)(43740500002)(45980500001);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?WFZtNGhVYzNNa1NrZWZWWkpidEJBNllaR2gwMWJjMEFPQyt4cnMzcUpBTGYx?= =?utf-8?B?d0VjclJ5a3VINWRPYmFyTFF1RGZ5V0lPdWI2dUdBRElXSncrUStuOHZRcGRH?= =?utf-8?B?RFRGL1ViTW9keG40bGtCelRqWmhPaVBsMnhmSzBRbm5uQjN3QkYvZ1pHajcz?= =?utf-8?B?U3ZrL3RPRFRJNnlnYkNwMmJmeWpMZ2ZOUEZ6NXNzUjZ5TkliWG9IcnBvRFdX?= =?utf-8?B?bWZ1VEs4NStDNFE5Q1BMUG5vTEFuMHhSZGVOenJJMlZuNHhEU3J5QVRrWnhp?= =?utf-8?B?Z0JEclBTa3FOZDZmWWYvT1h0Z1ROR2ZzN1FIZjh4NTQ3MkZaUmxLcjhzZDY4?= =?utf-8?B?U3BFTjNhTVk2T2lhc3E3NWhNYlM3VVlhcWpDbkZQUTZSdmVmdTdNR3ZseGZO?= =?utf-8?B?WkcwNm9CdDVzSmJuQ1QrbnpIdVBQK0U2ZmR2dzhUdnRKTDR5QkptZFA4cTlN?= =?utf-8?B?bkVqQ2taMUl4bmhsaDZPNUFkUk0xd1BMaTdMV0U3TjgxR2VIWkJsakhEVGhi?= =?utf-8?B?b0ZXc0VIeWt4Ym1Wd0w4dlFPc01rYnZkdmJmemRLUHJTL2hYbUZMd0NUdVdl?= =?utf-8?B?OGFxMlFQcjJoaW9VMHMzS2xzTTRTR3RDMGF0QW5ka29oek1SOFByb1A1R2NN?= =?utf-8?B?c1pTbXVmMXA3b1BacnN5N0phVytNUVJRcEpSYVBHY0x1c1NwTVBvZDJndVhD?= =?utf-8?B?U1VMQWh5cDZrcmJzYzFnR1R6VUNNeE0rNWs1ZzU5SXFtNXlvbnpNdTY3bDJy?= =?utf-8?B?U2VpMHluVGluMUp3YnMyMTBnMkJUTEovMUZyaFNNN0Q4RHZYbitPMVcwZlJH?= =?utf-8?B?R2ZOa0xBK09YRVJpTEQrSUw3Zy93TVBWdlJEM2lScStSUXVPZHdhbEI3VTdq?= =?utf-8?B?WXJUZy9IblRLZ0Y5NkQ1UHpzdDJuVXcycmRVOE14eHRLQVhiS2t6Z3BpcWlh?= =?utf-8?B?d3dta3JtdHZLMEt1blVXVTVVZmNuVG5mZ1V3UDBJMUU4L3JCTDVkY1I0YXBj?= =?utf-8?B?ai9NNzEvaklZSGplWXZXaG5UaWpZYjRvY2pqNi8vOGhibVFSdEQyckF5N1FX?= =?utf-8?B?Ymg3VUpUeFJld2U0UVdVN2RWRjVadGRlcGpMajlUalJBZDhPdHQ4MUYyejhv?= =?utf-8?B?NFFWZnJ5YU95dUNyclRsL0ZXcnZjWURlMHVzYkZleXVVREhMUkNvcS96ZHd6?= =?utf-8?B?WUZXOWt6cDA5Nld3U1lqMFVHbHVxNnNGc2RWQVVIMFdxaERRcFR1V0M5ZGlX?= =?utf-8?B?V3JsVUZWWm81UFQyeUFxS0hRb0JpUzM3VDVIdkdKTENhTDhMUm5xYU44Tjhr?= =?utf-8?B?Z1ZTZllNaGovb2padm8xOGJHenJNNmRXYXVCUm5ZZUY2V2N0V3Zkdkl6bzgz?= =?utf-8?B?MXdpNnVUQzZ1ZldnVnBjQmlBUTBBRTZvSGpQd3V2WTVjYUVDMkVESmhRWWJo?= =?utf-8?B?U2oveVB3SDlSeTBoakRHYzVqeSs3bEJ0cDZOWGxVZWNWY20vTWZnSzlBMHAz?= =?utf-8?B?MjFhNkNxNjVQWUdubEdNUVF1M0dhNmU5dGxxaHJ6bzBQczVub3ltbXJpdmxo?= =?utf-8?B?WGNhaGRYUjFKZWtzclV6WlRFbVNaSWtIQVZRemQ2K3JFbkN6cEFXdTBrMHk3?= =?utf-8?B?alQ5bDRwdTg0WHVjUTc5OWx4U214eXExdGpMaTF2UTZyRkQ1UXc4VDFVeE5V?= =?utf-8?B?aFpQNDRyb3pkYlpYYWRWUDZlcitOZnJJN2ZHa2Q5ZEZzMEJvK1AzNHJNSmpV?= =?utf-8?B?NFByRU1GbDJUbXJ2MFJCaEhLbzRoQVZlb2Yrb3lXQWZlbU44OUFNZGYxdjNt?= =?utf-8?B?RjJrNXkxcGRpYmZNVFV0OVpXanRlSlExUFdYeTJxcjd6Y2J5YmI3Q0hWOTJa?= =?utf-8?B?K1U0TGtNZDBLbkFPU0laRGRCc2xyQ1I2YWo0TjI5SXZqajRXZHEzcnJFanFD?= =?utf-8?B?Tkt3UGNDVW9yRGVXOVRjSy9wSVZTTGlGQWJVZVU2UmF0Z3hETC9SMURWRHBo?= =?utf-8?B?V2orOHUrWTk5VzltamxGb2w2ODh3YUppeWJmR251amFwVGlXeTRvK09oQTJx?= =?utf-8?B?NUV4N2w2WkVkYVhBYnpabERmR3V1SFJmUmdSeTBUQ05vczI1YkZSRFFjalUy?= =?utf-8?B?ajNhMGxPMmQ4VTM4eXdYVFErYk5Mem9CN1VrL0hGRHhyN2RnVldwVEplZFNk?= =?utf-8?B?alNqLzFCWStCZ0JOckZiZE10ZXhXVzRwZ1VjbDhQaGtHY2tkV1oza0RDOFlW?= =?utf-8?B?UDJSanE1NHh4OG9HdzFWdzc2YjBBPT0=?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: nuq7GV43yE6btEwzconzlcvzH0PNDej7h9fT6kjMvuoiruwwTJAJbMg7/WGRYe2RwAgxNS3swnfww6ZvSmIWrnfc553qMYvploXIF0MsfpuFdAb3alaPUt+jAM4T9BRdF/ITpv8kSo5GsXlUVz9ZY9SHFYmn4errunjQloLQHzO2Ei14Kq2ROfszEl5dRzc6+/XTFfjNO4XzSA1hYHYi8edsuPQyws8dTvHqCsS9yajKDH9fUwc3W7EN5ziprTbusGcdaYI360NtunpYo7JMRs4q0oF2UNnsJO7hXdgrHPqMhOBGBEFd8dyBhQqB5j70oetCWrZQerKdwzzrOKMmNXh4TvDC2H3FeY+zFDTkKj/nKL45/gOsJMi6YXfttVVut3Zs+yMP/yV89twRddZhZoaV3N/C4VVwNiD7wnD0pbp2sYPRfNh3e4gqOJqcRXPQLtRFjpwIrmYwn1dZE3jF/kh6i5tvTTa+BXIsggBRAg6OfdMGbwAgU6RD41sbtHaEUwPAdTWf5A/Ti0TVENt/GlbJ7Rls+P9Z9GXZPpUP+oA08RWsntLJK2abxvYCkuRloPfc2PibGQVHnVcXanneeCF0q7CSnJ3SoNycy1vO4aXHSf7cfl/CB83Ie9mMfptsBgJd7lXbKJ0smjkyvsTij3HEjSJfHb37IhKP7q8YxrydHDNC/bN7o3rJh3lS0aSIPalqdnLuaKo3/8EE6thJDqZG2JEaWbSoT2M9pttJW6DOmceA1PSaDHBG3gO4RQ31daVQbFqsatR2jbd5uOGztfuTNCyH5jMzofy5VqbKyPRWYpAxwbkBEOHh0eTtw+MWqQfcVbEQ0eTQkPjd1T+F5kIru6Aft/n1JFtzF7h9gYZw4NK0Yx53OV+IwFufZKbDxH12zwQ3JEXvcgEL4CSjcQ== X-OriginatorOrg: wdc.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR04MB7416.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 59bf311d-3e17-410e-885d-08db61d2f2e7 X-MS-Exchange-CrossTenant-originalarrivaltime: 31 May 2023 12:31:24.9338 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: ldrMSHS98T1JV/Kp4r9vu57CynYm3sZP7bWfeD8FjQtfHqkQ1OPDUm69UJkIFaVAFaJ/ltmHF09v+RjS1bQNo+t6AQEcypte8JW1JWbe9w0= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM8PR04MB7846 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org T24gMzEuMDUuMjMgMTA6NDksIFF1IFdlbnJ1byB3cm90ZToNCj4gDQo+IA0KPiBPbiAyMDIzLzUv MzEgMTI6MTcsIENocmlzdG9waCBIZWxsd2lnIHdyb3RlOg0KPj4gUGFzcyBhIHNtYXAgaW50byBf X2J0cmZzX21hcF9ibG9jayBzbyB0aGF0IHRoZSB1c3VhbCBjYXNlIG9mIGEgcmVhZCB0aGF0DQo+ PiBkb2Vzbid0IHJlcXVpcmUgcGFyaXR5IHJhaWQgcmVjb3ZlcnkgZG9lc24ndCBuZWVkIGFuIGV4 dHJhIG1lbW9yeQ0KPj4gYWxsb2NhdGlvbiBmb3IgdGhlIGJ0cmZzX2lvX2NvbnRleHQuDQo+Pg0K Pj4gU2lnbmVkLW9mZi1ieTogQ2hyaXN0b3BoIEhlbGx3aWcgPGhjaEBsc3QuZGU+DQo+IA0KPiBS ZXZpZXdlZC1ieTogUXUgV2VucnVvIDx3cXVAc3VzZS5jb20+DQo+IA0KPiBJJ20gbW9yZSBjdXJp b3VzIG9uIHdoZXRoZXIgdGhlIGNoZWNrLWludGVncml0eSBmZWF0dXJlIGlzIHN0aWxsIHVuZGVy DQo+IGhlYXZ5IHVzYWdlLg0KPiANCj4gSXQncyBmcm9tIG9sZCB0aW1lIHdoZXJlIHdlIGRvbid0 IGhhdmUgYSBsb3Qgb2Ygc2FuaXR5IGNoZWNrcywgYnV0DQo+IG5vd2FkYXlzIGl0IGxvb2tzIGxl c3Mgd29ydGh5IGFuZCBjYW4gY2F1c2UgZXh0cmEgYnVyZGVuIHRvIG1haW50YWluLg0KDQpJIHdh cyBnb2luZyB0byBhc2sgdGhlIHNhbWUgcXVlc3Rpb24uIEkgd291bGRuJ3QgbWluZCByZW1vdmlu ZyBpdCANCmF0IGFsbC4NCg0K