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=unavailable 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 9C990C5519F for ; Fri, 20 Nov 2020 07:26:45 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DD3CE2158C for ; Fri, 20 Nov 2020 07:26:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD3CE2158C 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-3-4t83Z208O8OdlUdidUYhAQ-1; Fri, 20 Nov 2020 02:26:41 -0500 X-MC-Unique: 4t83Z208O8OdlUdidUYhAQ-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 9323B107AD26; Fri, 20 Nov 2020 07:26:36 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 731855C1D5; Fri, 20 Nov 2020 07:26:36 +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 45899180954D; Fri, 20 Nov 2020 07:26:36 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 0AK7QYsf004148 for ; Fri, 20 Nov 2020 02:26:34 -0500 Received: by smtp.corp.redhat.com (Postfix) id 351A02166B28; Fri, 20 Nov 2020 07:26:34 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast01.extmail.prod.ext.rdu2.redhat.com [10.11.55.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 2FB8D2166B2C for ; Fri, 20 Nov 2020 07:26:31 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) (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 6A881858EEC for ; Fri, 20 Nov 2020 07:26:31 +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-324-tJSo42FYOqWl1MHSVLeFww-1; Fri, 20 Nov 2020 02:26:25 -0500 X-MC-Unique: tJSo42FYOqWl1MHSVLeFww-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 2A51FAB3D; Fri, 20 Nov 2020 07:26:23 +0000 (UTC) To: Christoph Hellwig , Jens Axboe References: <20201116145809.410558-1-hch@lst.de> <20201116145809.410558-56-hch@lst.de> From: Hannes Reinecke Message-ID: <75f4c397-ac03-2c5f-d620-0e619ad78fe8@suse.de> Date: Fri, 20 Nov 2020 08:26:22 +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: <20201116145809.410558-56-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 10.11.54.6 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 0AK7QYsf004148 X-loop: dm-devel@redhat.com Cc: Justin Sanders , Mike Snitzer , "Michael S. Tsirkin" , Jason Wang , linux-nvme@lists.infradead.org, Song Liu , dm-devel@redhat.com, linux-scsi@vger.kernel.org, xen-devel@lists.xenproject.org, Ilya Dryomov , Jack Wang , Konrad Rzeszutek Wilk , Josef Bacik , nbd@other.debian.org, linux-raid@vger.kernel.org, Stefan Hajnoczi , drbd-dev@tron.linbit.com, ceph-devel@vger.kernel.org, linux-block@vger.kernel.org, "Martin K. Petersen" , Minchan Kim , linux-fsdevel@vger.kernel.org, Paolo Bonzini , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Subject: Re: [dm-devel] [PATCH 55/78] block: change the hash used for looking up block devices 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" T24gMTEvMTYvMjAgMzo1NyBQTSwgQ2hyaXN0b3BoIEhlbGx3aWcgd3JvdGU6Cj4gQWRkaW5nIHRo ZSBtaW5vciB0byB0aGUgbWFqb3IgY3JlYXRlcyB0b25zIG9mIHBvaW50bGVzcyBjb25mbGljdHMu IEp1c3QKPiB1c2UgdGhlIGRldl90IGl0c2VsZiwgd2hpY2ggaXMgMzItYml0cyBhbmQgdGh1cyBp cyBndWFyYW50ZWVkIHRvIGZpdAo+IGludG8gaW5vX3QuCj4gCj4gU2lnbmVkLW9mZi1ieTogQ2hy aXN0b3BoIEhlbGx3aWcgPGhjaEBsc3QuZGU+Cj4gLS0tCj4gICBmcy9ibG9ja19kZXYuYyB8IDI2 ICsrLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tCj4gICAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRp b25zKCspLCAyNCBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZnMvYmxvY2tfZGV2LmMg Yi9mcy9ibG9ja19kZXYuYwo+IGluZGV4IGQ4NjY0ZjVjMWZmNjY5Li4yOWRiMTJjM2JiNTAxYyAx MDA2NDQKPiAtLS0gYS9mcy9ibG9ja19kZXYuYwo+ICsrKyBiL2ZzL2Jsb2NrX2Rldi5jCj4gQEAg LTg3MCwzNSArODcwLDEyIEBAIHZvaWQgX19pbml0IGJkZXZfY2FjaGVfaW5pdCh2b2lkKQo+ICAg CWJsb2NrZGV2X3N1cGVyYmxvY2sgPSBiZF9tbnQtPm1udF9zYjsgICAvKiBGb3Igd3JpdGViYWNr ICovCj4gICB9Cj4gICAKPiAtLyoKPiAtICogTW9zdCBsaWtlbHkgX3ZlcnlfIGJhZCBvbmUgLSBi dXQgdGhlbiBpdCdzIGhhcmRseSBjcml0aWNhbCBmb3Igc21hbGwKPiAtICogL2RldiBhbmQgY2Fu IGJlIGZpeGVkIHdoZW4gc29tZWJvZHkgd2lsbCBuZWVkIHJlYWxseSBsYXJnZSBvbmUuCj4gLSAq IEtlZXAgaW4gbWluZCB0aGF0IGl0IHdpbGwgYmUgZmVkIHRocm91Z2ggaWNhY2hlIGhhc2ggZnVu Y3Rpb24gdG9vLgo+IC0gKi8KPiAtc3RhdGljIGlubGluZSB1bnNpZ25lZCBsb25nIGhhc2goZGV2 X3QgZGV2KQo+IC17Cj4gLQlyZXR1cm4gTUFKT1IoZGV2KStNSU5PUihkZXYpOwo+IC19Cj4gLQo+ IC1zdGF0aWMgaW50IGJkZXZfdGVzdChzdHJ1Y3QgaW5vZGUgKmlub2RlLCB2b2lkICpkYXRhKQo+ IC17Cj4gLQlyZXR1cm4gQkRFVl9JKGlub2RlKS0+YmRldi5iZF9kZXYgPT0gKihkZXZfdCAqKWRh dGE7Cj4gLX0KPiAtCj4gLXN0YXRpYyBpbnQgYmRldl9zZXQoc3RydWN0IGlub2RlICppbm9kZSwg dm9pZCAqZGF0YSkKPiAtewo+IC0JQkRFVl9JKGlub2RlKS0+YmRldi5iZF9kZXYgPSAqKGRldl90 ICopZGF0YTsKPiAtCXJldHVybiAwOwo+IC19Cj4gLQo+ICAgc3RhdGljIHN0cnVjdCBibG9ja19k ZXZpY2UgKmJkZ2V0KGRldl90IGRldikKPiAgIHsKPiAgIAlzdHJ1Y3QgYmxvY2tfZGV2aWNlICpi ZGV2Owo+ICAgCXN0cnVjdCBpbm9kZSAqaW5vZGU7Cj4gICAKPiAtCWlub2RlID0gaWdldDVfbG9j a2VkKGJsb2NrZGV2X3N1cGVyYmxvY2ssIGhhc2goZGV2KSwKPiAtCQkJYmRldl90ZXN0LCBiZGV2 X3NldCwgJmRldik7Cj4gLQo+ICsJaW5vZGUgPSBpZ2V0X2xvY2tlZChibG9ja2Rldl9zdXBlcmJs b2NrLCBkZXYpOwo+ICAgCWlmICghaW5vZGUpCj4gICAJCXJldHVybiBOVUxMOwo+ICAgCj4gQEAg LTkxMCw2ICs4ODcsNyBAQCBzdGF0aWMgc3RydWN0IGJsb2NrX2RldmljZSAqYmRnZXQoZGV2X3Qg ZGV2KQo+ICAgCQliZGV2LT5iZF9zdXBlciA9IE5VTEw7Cj4gICAJCWJkZXYtPmJkX2lub2RlID0g aW5vZGU7Cj4gICAJCWJkZXYtPmJkX3BhcnRfY291bnQgPSAwOwo+ICsJCWJkZXYtPmJkX2RldiA9 IGRldjsKPiAgIAkJaW5vZGUtPmlfbW9kZSA9IFNfSUZCTEs7Cj4gICAJCWlub2RlLT5pX3JkZXYg PSBkZXY7Cj4gICAJCWlub2RlLT5pX2JkZXYgPSBiZGV2Owo+IApSZXZpZXdlZC1ieTogSGFubmVz IFJlaW5lY2tlIDxoYXJlQHN1c2UuZGU+CgpDaGVlcnMsCgpIYW5uZXMKLS0gCkRyLiBIYW5uZXMg UmVpbmVja2UgICAgICAgICAgICAgICAgS2VybmVsIFN0b3JhZ2UgQXJjaGl0ZWN0CmhhcmVAc3Vz ZS5kZSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICs0OSA5MTEgNzQwNTMgNjg4ClNVU0Ug U29mdHdhcmUgU29sdXRpb25zIEdtYkgsIE1heGZlbGRzdHIuIDUsIDkwNDA5IE7DvHJuYmVyZwpI UkIgMzY4MDkgKEFHIE7DvHJuYmVyZyksIEdlc2Now6RmdHNmw7xocmVyOiBGZWxpeCBJbWVuZMO2 cmZmZXIKCgotLQpkbS1kZXZlbCBtYWlsaW5nIGxpc3QKZG0tZGV2ZWxAcmVkaGF0LmNvbQpodHRw czovL3d3dy5yZWRoYXQuY29tL21haWxtYW4vbGlzdGluZm8vZG0tZGV2ZWw=