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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 8FD68C5519F for ; Mon, 30 Nov 2020 07:36:40 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D68C220643 for ; Mon, 30 Nov 2020 07:36:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D68C220643 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-480-SWvcfk0aP8SwsInr0olLOQ-1; Mon, 30 Nov 2020 02:36:36 -0500 X-MC-Unique: SWvcfk0aP8SwsInr0olLOQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0DC0E8797D6; Mon, 30 Nov 2020 07:36:32 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BA13E5C1C5; Mon, 30 Nov 2020 07:36:31 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 2FB804A7C6; Mon, 30 Nov 2020 07:36:31 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 0AU7aT9H025386 for ; Mon, 30 Nov 2020 02:36:29 -0500 Received: by smtp.corp.redhat.com (Postfix) id 3D0A4112C07C; Mon, 30 Nov 2020 07:36:29 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast03.extmail.prod.ext.rdu2.redhat.com [10.11.55.19]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 38E65112C078 for ; Mon, 30 Nov 2020 07:36:27 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E70D8811E76 for ; Mon, 30 Nov 2020 07:36:26 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-314-Mp4vFMBnMx2dIW64ErefhA-1; Mon, 30 Nov 2020 02:36:22 -0500 X-MC-Unique: Mp4vFMBnMx2dIW64ErefhA-1 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 09E40AC6A; Mon, 30 Nov 2020 07:36:21 +0000 (UTC) To: Christoph Hellwig , Jens Axboe References: <20201128161510.347752-1-hch@lst.de> <20201128161510.347752-26-hch@lst.de> From: Hannes Reinecke Message-ID: Date: Mon, 30 Nov 2020 08:36:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <20201128161510.347752-26-hch@lst.de> X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 0AU7aT9H025386 X-loop: dm-devel@redhat.com Cc: linux-bcache@vger.kernel.org, Jan Kara , Mike Snitzer , linux-mm@kvack.org, Greg Kroah-Hartman , Jan Kara , Josef Bacik , Coly Li , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, Johannes Thumshirn , Tejun Heo Subject: Re: [dm-devel] [PATCH 25/45] block: simplify bdev/disk lookup in blkdev_get X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" T24gMTEvMjgvMjAgNToxNCBQTSwgQ2hyaXN0b3BoIEhlbGx3aWcgd3JvdGU6Cj4gVG8gc2ltcGxp ZnkgYmxvY2sgZGV2aWNlIGxvb2t1cCBhbmQgYSBmZXcgb3RoZXIgdXBjb21pbmcgYXJlYXMsIG1h a2Ugc3VyZQo+IHRoYXQgd2UgYWx3YXlzIGhhdmUgYSBzdHJ1Y3QgYmxvY2tfZGV2aWNlIGF2YWls YWJsZSBmb3IgZWFjaCBkaXNrIGFuZAo+IGVhY2ggcGFydGl0aW9uLCBhbmQgb25seSBmaW5kIGV4 aXN0aW5nIGJsb2NrIGRldmljZXMgaW4gYmRnZXQuICBUaGUgb25seQo+IGRvd25zaWRlIG9mIHRo aXMgaXMgdGhhdCBlYWNoIGRldmljZSBhbmQgcGFydGl0aW9uIHVzZXMgYSBsaXR0bGUgbW9yZQo+ IG1lbW9yeS4gIFRoZSB1cHNpZGUgd2lsbCBiZSB0aGF0IGEgbG90IG9mIGNvZGUgY2FuIGJlIHNp bXBsaWZpZWQuCj4gCj4gV2l0aCB0aGF0IGFsbCB3ZSBuZWVkIHRvIGxvb2sgdXAgdGhlIGJsb2Nr IGRldmljZSBpcyB0byBsb29rdXAgdGhlIGlub2RlCj4gYW5kIGRvIGEgZmV3IHNhbml0eSBjaGVj a3Mgb24gdGhlIGdlbmRpc2ssIGluc3RlYWQgb2YgdGhlIHNlcGFyYXRlIGxvb2t1cAo+IGZvciB0 aGUgZ2VuZGlzay4gIEZvciBibGstY2dyb3VwIHdoaWNoIHdhbnRzIHRvIGFjY2VzcyBhIGdlbmRp c2sgd2l0aG91dAo+IG9wZW5pbmcgaXQsIGEgbmV3IGJsa2Rldl97Z2V0LHB1dH1fbm9fb3BlbiBs b3ctbGV2ZWwgaW50ZXJmYWNlIGlzIGFkZGVkCj4gdG8gcmVwbGFjZSB0aGUgcHJldmlvdXMgZ2V0 X2dlbmRpc2sgdXNlLgo+IAo+IE5vdGUgdGhhdCB0aGUgY2hhbmdlIHRvIGxvb2sgdXAgYmxvY2sg ZGV2aWNlIGRpcmVjdGx5IGluc3RlYWQgb2YgdGhlIHR3bwo+IHN0ZXAgbG9va3VwIHVzaW5nIHN0 cnVjdCBnZW5kaXNrIGNhdXNlcyBhIHN1YnRpbGUgY2hhbmdlIGluIGJlaGF2aW9yOgo+IGFjY2Vz c2luZyBhIG5vbi1leGlzdGluZyBwYXJ0aXRpb24gb24gYW4gZXhpc3RpbmcgYmxvY2sgZGV2aWNl IGNhbiBub3cKPiBjYXVzZSBhIGNhbGwgdG8gcmVxdWVzdF9tb2R1bGUuICBUaGF0IGNhbGwgaXMg aGFybWxlc3MsIGFuZCBpbiBwcmFjdGljZQo+IG5vIHJlY2VudCBzeXN0ZW0gd2lsbCBhY2Nlc3Mg dGhlc2Ugbm9kZXMgYXMgdGhleSBhcmVuJ3QgY3JlYXRlZCBieSB1ZGV2Cj4gYW5kIHN0YXRpYyAv ZGV2LyBzZXR1cHMgYXJlIHVudXN1YWwuCj4gCj4gU2lnbmVkLW9mZi1ieTogQ2hyaXN0b3BoIEhl bGx3aWcgPGhjaEBsc3QuZGU+Cj4gLS0tCj4gICBibG9jay9ibGstY2dyb3VwLmMgICAgICAgICB8 ICA0MiArKysrLS0tLQo+ICAgYmxvY2svYmxrLWlvY29zdC5jICAgICAgICAgfCAgMzYgKysrLS0t LQo+ICAgYmxvY2svYmxrLmggICAgICAgICAgICAgICAgfCAgIDIgKy0KPiAgIGJsb2NrL2dlbmhk LmMgICAgICAgICAgICAgIHwgMjEwICsrKysrLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0KPiAgIGJsb2NrL3BhcnRpdGlvbnMvY29yZS5jICAgIHwgIDI5ICsrLS0tCj4gICBmcy9ibG9j a19kZXYuYyAgICAgICAgICAgICB8IDE3NyArKysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0t Cj4gICBpbmNsdWRlL2xpbnV4L2Jsay1jZ3JvdXAuaCB8ICAgNCArLQo+ICAgaW5jbHVkZS9saW51 eC9ibGtkZXYuaCAgICAgfCAgIDYgKysKPiAgIGluY2x1ZGUvbGludXgvZ2VuaGQuaCAgICAgIHwg ICA3ICstCj4gICA5IGZpbGVzIGNoYW5nZWQsIDE5NCBpbnNlcnRpb25zKCspLCAzMTkgZGVsZXRp b25zKC0pCj4gClJldmlld2VkLWJ5OiBIYW5uZXMgUmVpbmVja2UgPGhhcmVAc3VzZS5kZT4KCkNo ZWVycywKCkhhbm5lcwotLSAKRHIuIEhhbm5lcyBSZWluZWNrZSAgICAgICAgICAgICAgICBLZXJu ZWwgU3RvcmFnZSBBcmNoaXRlY3QKaGFyZUBzdXNlLmRlICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgKzQ5IDkxMSA3NDA1MyA2ODgKU1VTRSBTb2Z0d2FyZSBTb2x1dGlvbnMgR21iSCwgTWF4 ZmVsZHN0ci4gNSwgOTA0MDkgTsO8cm5iZXJnCkhSQiAzNjgwOSAoQUcgTsO8cm5iZXJnKSwgR2Vz Y2jDpGZ0c2bDvGhyZXI6IEZlbGl4IEltZW5kw7ZyZmZlcgoKCi0tCmRtLWRldmVsIG1haWxpbmcg bGlzdApkbS1kZXZlbEByZWRoYXQuY29tCmh0dHBzOi8vd3d3LnJlZGhhdC5jb20vbWFpbG1hbi9s aXN0aW5mby9kbS1kZXZlbA==