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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 5B85FC4363D for ; Tue, 6 Oct 2020 13:30:28 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 A580C207EA for ; Tue, 6 Oct 2020 13:30:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Bt1arcPj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A580C207EA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=KeC1V4mdz698wi6LA5z515w2oUMmdF05B1+PRB+/1x0=; b=Bt1arcPjDI0nnDm4I7KkkXvsC EjMhGhaL6k0GB0xjmJiec3J7CaoF+gGILt4HwK0fUY7gHnWMXtOmF3b2mBCNxLO6R9xJcVNMbSrWd p9ORCqYfBQs5U5T7mcTae7FuQHQA25EW3ir5ZUc6Hi3xeQSTsY9sxYd0u/9WKIm14BKzbygK7o7d4 N5SkvB42j7mU/mBMqN2fZAFiKzqBg7i69cUa7aQK7Fr91PIQ7u+J5FNqzDz/yDtLy4J/YuYxt58Km Fa9CEZ3+T/Ko4IWfbYrknfSdBj3EYHQMYosPrWjqK28KbtzqB4EkP7D6tZGYxg5EFLVVk8vowu4r1 b1obCk2QA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kPn2r-0000ZR-7C; Tue, 06 Oct 2020 13:30:21 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kPn2p-0000Z1-2K for linux-nvme@lists.infradead.org; Tue, 06 Oct 2020 13:30:20 +0000 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 D4331AB54; Tue, 6 Oct 2020 13:30:15 +0000 (UTC) Subject: Re: [PATCH 2/2] nvme: add 'queue_if_no_path' semantics To: Christoph Hellwig References: <20201005124500.6015-1-hare@suse.de> <20201005124500.6015-3-hare@suse.de> <20201005125201.GB1125@lst.de> <8d7d4803-5808-0839-ee4f-e36a12756497@suse.de> <20201006075153.GA10041@lst.de> <20201006082727.GC10243@lst.de> <20201006083926.GA13568@lst.de> From: Hannes Reinecke Message-ID: <00e75643-d422-ca12-1648-02ca89044182@suse.de> Date: Tue, 6 Oct 2020 15:30:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201006083926.GA13568@lst.de> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201006_093019_338166_02F9651E X-CRM114-Status: GOOD ( 26.10 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-nvme@lists.infradead.org, Sagi Grimberg , Keith Busch Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org T24gMTAvNi8yMCAxMDozOSBBTSwgQ2hyaXN0b3BoIEhlbGx3aWcgd3JvdGU6Cj4gT24gVHVlLCBP Y3QgMDYsIDIwMjAgYXQgMTA6Mjk6NDlBTSArMDIwMCwgSGFubmVzIFJlaW5lY2tlIHdyb3RlOgo+ Pj4gQWxsIG11bHRpcGF0aCBkZXZpY2VzIHNob3VsZCBiZWhhdmUgdGhlIHNhbWUuICBObyBzcGVj aWFsIGNhc2luZyBmb3IKPj4+IFBDSWUsIHBsZWFzZS4KPj4+Cj4+IEV2ZW4gaWYgdGhlIGRlZmF1 bHQgYmVoYXZpb3VyIGJyZWFrcyBQQ0kgaG90cGx1Zz8KPiAKPiBXaHkgd291bGQgaXQgImJyZWFr IiBQQ0kgaG90cGx1Zz8KPiAKV2hlbiBydW5uaW5nIHVuZGVyIE1EIFJBSUQ6CkJlZm9yZSBob3Rw bHVnOgojIG52bWUgbGlzdApOb2RlICAgICAgICAgICAgIFNOICAgICAgICAgICAgICAgICAgIE1v ZGVsIAogICAgICAgTmFtZXNwYWNlIFVzYWdlICAgICAgICAgICAgICAgICAgICAgIEZvcm1hdCAg ICAgICAgICAgRlcgUmV2Ci0tLS0tLS0tLS0tLS0tLS0gLS0tLS0tLS0tLS0tLS0tLS0tLS0gCi0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0gLS0tLS0tLS0tIAotLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLSAtLS0tLS0tLS0tLS0tLS0tIC0tLS0tLS0tCi9kZXYvbnZtZTBu MSAgICAgU0xFU05WTUUxICAgICAgICAgICAgUUVNVSBOVk1lIEN0cmwgCiAgICAgICAxICAgICAg ICAgIDE3LjE4ICBHQiAvICAxNy4xOCAgR0IgICAgNTEyICAgQiArICAwIEIgICAxLjAKL2Rldi9u dm1lMW4xICAgICBTTEVTTlZNRTIgICAgICAgICAgICBRRU1VIE5WTWUgQ3RybCAKICAgICAgIDEg ICAgICAgICAgIDQuMjkgIEdCIC8gICA0LjI5ICBHQiAgICA1MTIgICBCICsgIDAgQiAgIDEuMAov ZGV2L252bWUybjEgICAgIFNMRVNOVk1FMyAgICAgICAgICAgIFFFTVUgTlZNZSBDdHJsIAogICAg ICAgMSAgICAgICAgICAgNC4yOSAgR0IgLyAgIDQuMjkgIEdCICAgIDUxMiAgIEIgKyAgMCBCICAg MS4wCkFmdGVyIGhvdHBsdWc6CgojIG52bWUgbGlzdApOb2RlICAgICAgICAgICAgIFNOICAgICAg ICAgICAgICAgICAgIE1vZGVsIAogICAgICAgTmFtZXNwYWNlIFVzYWdlICAgICAgICAgICAgICAg ICAgICAgIEZvcm1hdCAgICAgICAgICAgRlcgUmV2Ci0tLS0tLS0tLS0tLS0tLS0gLS0tLS0tLS0t LS0tLS0tLS0tLS0gCi0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0gLS0t LS0tLS0tIAotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLSAtLS0tLS0tLS0tLS0tLS0tIC0tLS0t LS0tCi9kZXYvbnZtZTBuMSAgICAgU0xFU05WTUUxICAgICAgICAgICAgUUVNVSBOVk1lIEN0cmwg CiAgICAgICAxICAgICAgICAgIDE3LjE4ICBHQiAvICAxNy4xOCAgR0IgICAgNTEyICAgQiArICAw IEIgICAxLjAKL2Rldi9udm1lMW4xICAgICBTTEVTTlZNRTIgICAgICAgICAgICBRRU1VIE5WTWUg Q3RybCAKICAgICAgIC0xICAgICAgICAgIDAuMDAgICBCIC8gICAwLjAwICAgQiAgICAgIDEgICBC ICsgIDAgQiAgIDEuMAovZGV2L252bWUxbjIgICAgIFNMRVNOVk1FMiAgICAgICAgICAgIFFFTVUg TlZNZSBDdHJsIAogICAgICAgMSAgICAgICAgICAgNC4yOSAgR0IgLyAgIDQuMjkgIEdCICAgIDUx MiAgIEIgKyAgMCBCICAgMS4wCi9kZXYvbnZtZTJuMSAgICAgU0xFU05WTUUzICAgICAgICAgICAg UUVNVSBOVk1lIEN0cmwgCiAgICAgICAxICAgICAgICAgICA0LjI5ICBHQiAvICAgNC4yOSAgR0Ig ICAgNTEyICAgQiArICAwIEIgICAxLjAKCkFuZCBNRCBoYXNuJ3QgYmVlbiBub3RpZmllZCB0aGF0 IHRoZSBkZXZpY2UgaXMgZ29uZToKIyBjYXQgL3Byb2MvbWRzdGF0ClBlcnNvbmFsaXRpZXMgOiBb cmFpZDEwXQptZDAgOiBhY3RpdmUgcmFpZDEwIG52bWUybjFbMV0gbnZtZTFuMVswXQogICAgICAg NDE4OTE4NCBibG9ja3Mgc3VwZXIgMS4yIDIgbmVhci1jb3BpZXMgWzIvMl0gW1VVXQogICAgICAg Yml0bWFwOiAwLzEgcGFnZXMgWzBLQl0sIDY1NTM2S0IgY2h1bmsKCnVudXNlZCBkZXZpY2VzOiA8 bm9uZT4KCk9uY2UgSSBkbyBzb21lIEkvTyB0byBpdCBNRCByZWNvZ25pemVkIGEgZmF1bHR5IGRl dmljZToKCiMgY2F0IC9wcm9jL21kc3RhdApQZXJzb25hbGl0aWVzIDogW3JhaWQxMF0KbWQwIDog YWN0aXZlIHJhaWQxMCBudm1lMm4xWzFdIG52bWUxbjFbMF0oRikKICAgICAgIDQxODkxODQgYmxv Y2tzIHN1cGVyIDEuMiAyIG5lYXItY29waWVzIFsyLzFdIFtfVV0KICAgICAgIGJpdG1hcDogMC8x IHBhZ2VzIFswS0JdLCA2NTUzNktCIGNodW5rCgp1bnVzZWQgZGV2aWNlczogPG5vbmU+CgpidXQg dGhlIHJlLWFkZGVkIGRldmljZSBpc24ndCBhZGRlZCB0byB0aGUgTUQgUkFJRC4KSW4gZmFjdCwg aXQgaGFzIGJlZW4gYXNzaWduZWQgYSBfZGlmZmVyZW50XyBuYW1lc3BhY2UgSUQ6CgpbICA5MDQu Mjk5MDY1XSBwY2llcG9ydCAwMDAwOjAwOjA4LjA6IHBjaWVocDogU2xvdCgwLTEpOiBDYXJkIHBy ZXNlbnQKWyAgOTA0LjI5OTA2N10gcGNpZXBvcnQgMDAwMDowMDowOC4wOiBwY2llaHA6IFNsb3Qo MC0xKTogTGluayBVcApbICA5MDQuNDM1MzE0XSBwY2kgMDAwMDowMjowMC4wOiBbODA4Njo1ODQ1 XSB0eXBlIDAwIGNsYXNzIDB4MDEwODAyClsgIDkwNC40MzU1MjNdIHBjaSAwMDAwOjAyOjAwLjA6 IHJlZyAweDEwOiBbbWVtIDB4MDAwMDAwMDAtMHgwMDAwMWZmZiA2NGJpdF0KWyAgOTA0LjQzNTY3 Nl0gcGNpIDAwMDA6MDI6MDAuMDogcmVnIDB4MjA6IFttZW0gMHgwMDAwMDAwMC0weDAwMDAwZmZm XQpbICA5MDQuNDM2OTgyXSBwY2kgMDAwMDowMjowMC4wOiBCQVIgMDogYXNzaWduZWQgW21lbSAK MHhjMTIwMDAwMC0weGMxMjAxZmZmIDY0Yml0XQpbICA5MDQuNDM3MDg2XSBwY2kgMDAwMDowMjow MC4wOiBCQVIgNDogYXNzaWduZWQgW21lbSAweGMxMjAyMDAwLTB4YzEyMDJmZmZdClsgIDkwNC40 MzcxMThdIHBjaWVwb3J0IDAwMDA6MDA6MDguMDogUENJIGJyaWRnZSB0byBbYnVzIDAyXQpbICA5 MDQuNDM3MTM3XSBwY2llcG9ydCAwMDAwOjAwOjA4LjA6ICAgYnJpZGdlIHdpbmRvdyBbaW8gIDB4 NzAwMC0weDdmZmZdClsgIDkwNC40MzkwMjRdIHBjaWVwb3J0IDAwMDA6MDA6MDguMDogICBicmlk Z2Ugd2luZG93IFttZW0gCjB4YzEyMDAwMDAtMHhjMTNmZmZmZl0KWyAgOTA0LjQ0MDIyOV0gcGNp ZXBvcnQgMDAwMDowMDowOC4wOiAgIGJyaWRnZSB3aW5kb3cgW21lbSAKMHg4MDIwMDAwMDAtMHg4 MDNmZmZmZmYgNjRiaXQgcHJlZl0KWyAgOTA0LjQ0NzE1MF0gbnZtZSBudm1lMzogcGNpIGZ1bmN0 aW9uIDAwMDA6MDI6MDAuMApbICA5MDQuNDQ3NDg3XSBudm1lIDAwMDA6MDI6MDAuMDogZW5hYmxp bmcgZGV2aWNlICgwMDAwIC0+IDAwMDIpClsgIDkwNC40NTg4ODBdIG52bWUgbnZtZTM6IDEvMC8w IGRlZmF1bHQvcmVhZC9wb2xsIHF1ZXVlcwpbICA5MDQuNDYxMjk2XSBudm1lMW4yOiBkZXRlY3Rl ZCBjYXBhY2l0eSBjaGFuZ2UgZnJvbSAwIHRvIDQyOTQ5NjcyOTYKCmFuZCB0aGUgJ29sZCcsIHBy ZS1ob3RwbHVnIGRldmljZSBzdGlsbCBsaW5nZXJzIG9uIGluIHRoZSAnbnZtZSBsaXN0JyAKb3V0 cHV0LgoKQ2hlZXJzLAoKSGFubmVzCi0tIApEci4gSGFubmVzIFJlaW5lY2tlICAgICAgICAgICAg ICAgIEtlcm5lbCBTdG9yYWdlIEFyY2hpdGVjdApoYXJlQHN1c2UuZGUgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICArNDkgOTExIDc0MDUzIDY4OApTVVNFIFNvZnR3YXJlIFNvbHV0aW9ucyBH bWJILCBNYXhmZWxkc3RyLiA1LCA5MDQwOSBOw7xybmJlcmcKSFJCIDM2ODA5IChBRyBOw7xybmJl cmcpLCBHZXNjaMOkZnRzZsO8aHJlcjogRmVsaXggSW1lbmTDtnJmZmVyCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1udm1lIG1haWxpbmcgbGlz dApMaW51eC1udm1lQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5v cmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1udm1lCg==