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=-5.3 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 2BB08C4742C for ; Mon, 16 Nov 2020 09:54:18 +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 8F44020797 for ; Mon, 16 Nov 2020 09:54:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="mxCY1uok" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F44020797 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=QEVX1z00Opa0aOEuOlj/3b5k3rKFjYo9l1BmoGb3bgY=; b=mxCY1uokA9IvXY5P0Dl6G4OdC oTS5xOMQZmuoP4r4XblH/LZ1B7dLYhGoIioDCn0+6TGov/Q6wIn/SEFypBI9K2W9LCOYepl0KHPbM 6BqcLfuZdt6+yUOUvAuLyKKTVVrspGKzh7liWTs+soewfUu7OiHPzPvM99yCP+khr8/bOIuIXvB7G yq7doLNa6jXV4xXyJIAOmKT7suLH6r0vAiWkIHJ+XJTLZ3RDwma64Ifk4hs7zfvqmBNLun298t2zl XoKqElpt5OJLjLqm+B8Q5jPtrR3UDbPgDz/VBmbLVxyKuD7UKC1eJxhLCN2D3SPhUxjxfPvNLBnG5 kswr4JnMw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kebD8-0006PO-CZ; Mon, 16 Nov 2020 09:54:10 +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 1kebD6-0006Oy-2k for linux-nvme@lists.infradead.org; Mon, 16 Nov 2020 09:54:09 +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 C3B42ACE0; Mon, 16 Nov 2020 09:54:06 +0000 (UTC) Subject: Re: [PATCH v9] nvme-fabrics: reject I/O to offline device To: Victor Gladkov , "linux-nvme@lists.infradead.org" References: <319b8b1869f34a48b26fbd902883ed71@kioxia.com> From: Hannes Reinecke Message-ID: <08f1048d-0726-983c-c783-2e04d24b5221@suse.de> Date: Mon, 16 Nov 2020 10:54:05 +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: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201116_045408_366767_D220CFB8 X-CRM114-Status: GOOD ( 24.44 ) 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: Keith Busch , Christoph Hellwig , Sagi Grimberg , "Ewan D. Milne" , James Smart 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 T24gMTEvMTUvMjAgNDo0NSBQTSwgVmljdG9yIEdsYWRrb3Ygd3JvdGU6Cj4+IC0tLS0tT3JpZ2lu YWwgTWVzc2FnZS0tLS0tCj4+IEZyb206IEhhbm5lcyBSZWluZWNrZSBbbWFpbHRvOmhhcmVAc3Vz ZS5kZV0KPj4gU2VudDogVGh1cnNkYXksIDAxIE9jdG9iZXIsIDIwMjAgMTE6NTUKPiAKPj4+IC0t LQo+Pj4gICAgZHJpdmVycy9udm1lL2hvc3QvY29yZS5jICAgICAgfCA0OQo+Pj4gKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrLQo+Pj4gICAgZHJpdmVycy9udm1lL2hv c3QvZmFicmljcy5jICAgfCAyNSArKysrKysrKysrKysrKysrKysrLS0tCj4+PiAgICBkcml2ZXJz L252bWUvaG9zdC9mYWJyaWNzLmggICB8ICA1ICsrKysrCj4+PiAgICBkcml2ZXJzL252bWUvaG9z dC9tdWx0aXBhdGguYyB8ICA1ICsrKystCj4+PiAgICBkcml2ZXJzL252bWUvaG9zdC9udm1lLmgg ICAgICB8ICAzICsrKwo+Pj4gICAgNSBmaWxlcyBjaGFuZ2VkLCA4MiBpbnNlcnRpb25zKCspLCA1 IGRlbGV0aW9ucygtKQo+Pj4KPj4gSSBkaWQgc29tZSBtb3JlIGV4cGVyaW1lbnRzIHdpdGggdGhp cywgYW5kIGZvdW5kIHRoYXQgdGhlcmUgYXJlIHNvbWUgaXNzdWVzCj4+IHdpdGggQU5BIGhhbmRs aW5nLgo+PiBJZiByZWNvbm5lY3Qgd29ya3MsIGJ1dCB0aGUgQU5BIHN0YXRlIGluZGljYXRlcyB0 aGF0IHdlIHN0aWxsIGNhbid0IHNlbnQgSS9PIChlZwo+PiBieSBzdGlsbCBiZWluZyBpbiB0cmFu c2l0aW9uaW5nKSwgd2UgaGl0IHRoZSAncmVxdWV1ZWluZyBJL08nCj4+IHN0YXRlIGRlc3BpdGUg ZmFzdF9pb19mYWlsX3RtbyBiZWluZyBzZXQuIE5vdCBzdXJlIGlmIHRoYXQncyB0aGUgZXhwZWN0 ZWQKPj4gb3V0Y29tZS4KPj4gRm9yIHRoYXQgaXQgbWlnaHQgYmUgYmV0dGVyIHRvIG1vdmUgdGhl IEZBSUxGQVNUX0VYUElSRUQgYml0IGludG8gdGhlCj4+IG5hbWVzcGFjZSwgYXMgdGhlbiB3ZSBj b3VsZCBzZWxlY3RpdmVseSBjbGVhciB0aGUgYml0IGluCj4+IG52bWVfZmFpbGZhc3Rfd29yaygp Ogo+Pgo+PiBAQCAtMTUxLDEyICsxNTEsMTYgQEAgRVhQT1JUX1NZTUJPTF9HUEwobnZtZV90cnlf c2NoZWRfcmVzZXQpOwo+PiAgICBzdGF0aWMgdm9pZCBudm1lX2ZhaWxmYXN0X3dvcmsoc3RydWN0 IHdvcmtfc3RydWN0ICp3b3JrKSB7Cj4+ICAgICAgICAgICBzdHJ1Y3QgbnZtZV9jdHJsICpjdHJs ID0gY29udGFpbmVyX29mKHRvX2RlbGF5ZWRfd29yayh3b3JrKSwKPj4gICAgICAgICAgICAgICAg ICAgICAgICAgICBzdHJ1Y3QgbnZtZV9jdHJsLCBmYWlsZmFzdF93b3JrKTsKPj4gKyAgICAgICBz dHJ1Y3QgbnZtZV9ucyAqbnM7Cj4+Cj4+IC0gICAgICAgaWYgKGN0cmwtPnN0YXRlICE9IE5WTUVf Q1RSTF9DT05ORUNUSU5HKQo+PiAtICAgICAgICAgICAgICAgcmV0dXJuOwo+PiAtCj4+IC0KPj4g LSAgICAgICBzZXRfYml0KE5WTUVfQ1RSTF9GQUlMRkFTVF9FWFBJUkVELCAmY3RybC0+ZmxhZ3Mp Owo+PiArICAgICAgIGRvd25fcmVhZCgmY3RybC0+bmFtZXNwYWNlc19yd3NlbSk7Cj4+ICsgICAg ICAgbGlzdF9mb3JfZWFjaF9lbnRyeShucywgJmN0cmwtPm5hbWVzcGFjZXMsIGxpc3QpIHsKPj4g KyAgICAgICAgICAgICAgIGlmIChjdHJsLT5zdGF0ZSAhPSBOVk1FX0NUUkxfTElWRSB8fAo+PiAr ICAgICAgICAgICAgICAgICAgIChucy0+YW5hX3N0YXRlICE9IE5WTUVfQU5BX09QVElNSVpFRCAm Jgo+PiArICAgICAgICAgICAgICAgICAgICBucy0+YW5hX3N0YXRlICE9IE5WTUVfQU5BX05PTk9Q VElNSVpFRCkpCj4+ICsgICAgICAgICAgICAgICAgICAgICAgIHNldF9iaXQoTlZNRV9OU19GQUlM RkFTVF9FWFBJUkVELCAmbnMtPmZsYWdzKTsKPj4gKyAgICAgICB9Cj4+ICsgICAgICAgdXBfcmVh ZCgmY3RybC0+bmFtZXNwYWNlc19yd3NlbSk7Cj4+ICAgICAgICAgICBkZXZfaW5mbyhjdHJsLT5k ZXZpY2UsICJmYWlsZmFzdCBleHBpcmVkXG4iKTsKPj4KPj4gLi4uYW5kIHdlIGNvdWxkIGxlYXZl IHRoZSBmYWlsZmFzdCB3b3JrZXIgcnVubmluZyBldmVuIGFmdGVyIHRoZSBjb250cm9sbGVyCj4+ IHRyYW5zaXRpb25lZCB0byBMSVZFLgo+PiBDZiB0aGUgYXR0YWNoZWQgcGF0Y2ggZm9yIGRldGFp bHMuCj4+Cj4+IENoZWVycywKPj4KPj4gSGFubmVzCj4+IC0tCj4gCj4gSSdtIG5vdCBzdXJlIHdo YXQgbWFrZXMgc2Vuc2UgdG8gbW92ZSB0aGUgRkFJTEZBU1RfRVhQSVJFRCBiaXQgaW50byB0aGUg bmFtZXNwYWNlLAo+IEJlY2F1c2UgdGhlIGZhaWxmYXN0IG1lY2hhbmlzbSBjaGFyYWN0ZXJpemVz IHRoZSBjb250cm9sbGVyIGFzIGEgd2hvbGUuCj4gCk9oLCB5ZXMsIEknbSBhd2FyZSBvZiB0aGF0 LiBCdXQgdGhlIHByb2JsZW0gaGVyZSBpcyB3aXRoIG11bHRpcGF0aDsgaG93IApkbyB3ZSBoYW5k bGUgdGhlIHNpdHVhdGlvbiB3aGVyZSBhbGwgY29udHJvbGxlcnMgaGF2ZSB0aGUgCidmYWlsZmFz dF9leHBpcmVkJyBiaXQgc2V0PwpTaG91bGQgSS9PIGJlIHRlcm1pbmF0ZWQgKHdoaWNoIEkgdGhp bmsgaXQgc2hvdWxkLCBnaXZlbiB0aGF0IGZhaWxmYXN0IAppcyBzdXBwb3NlZCB0byB0ZXJtaW5h dGUgdGhlIEkvTyk/Ck9yIHNob3VsZCBJL08gY29udGludWUgdG8gcnVuIChhcyBpdCBkb2VzIHdp dGggeW91ciBvcmlnaW5hbCBwYXRjaCk/CgpDaGVlcnMsCgpIYW5uZXMKLS0gCkRyLiBIYW5uZXMg UmVpbmVja2UgICAgICAgICAgICAgICAgS2VybmVsIFN0b3JhZ2UgQXJjaGl0ZWN0CmhhcmVAc3Vz ZS5kZSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICs0OSA5MTEgNzQwNTMgNjg4ClNVU0Ug U29mdHdhcmUgU29sdXRpb25zIEdtYkgsIE1heGZlbGRzdHIuIDUsIDkwNDA5IE7DvHJuYmVyZwpI UkIgMzY4MDkgKEFHIE7DvHJuYmVyZyksIEdlc2Now6RmdHNmw7xocmVyOiBGZWxpeCBJbWVuZMO2 cmZmZXIKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkxp bnV4LW52bWUgbWFpbGluZyBsaXN0CkxpbnV4LW52bWVAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52bWUK