Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp4072065iob; Tue, 17 May 2022 13:17:02 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwh+T/rzVF7sP3apPkoZUUsjQgc8+GUlrQM2+4AGRoAE6s0jvyHN/nk+Dnbu6HHRXPUBE0t X-Received: by 2002:a17:907:1693:b0:6f4:ee60:16e8 with SMTP id hc19-20020a170907169300b006f4ee6016e8mr20607081ejc.312.1652818622761; Tue, 17 May 2022 13:17:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652818622; cv=none; d=google.com; s=arc-20160816; b=y2XIn9JFst4b2V8vqfFG/IGv6OzBLrvw12HFcRTXkpM8rMxxu1P47rsgksxnWEX+SL 68w6J0mpJtLhmIeDNKoaOgfgrQFFOuYs+jqtSUlf3etjBuESw8zSId5bn9MJxlQ6JGly p8GXMgFwjhqz2a1UiBtg7gHrMh9qLcnVEaLJUv3MaX91Hsid5KEGymnYK94rRYRkqgSw D3Pwwl2NKKsd7dnW7RLMWwTHvvoxrLvJYeaoExRJh9gOIX8rOAbRjwpQADwnPFO8f+/0 bcv/VkqtvGQlkRaI1/lUeaJyCiH4rXx5ALBmPslCotEyZT6NY3zAlSidULDlU2RynC1k eipw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=w1JSWBmF6HMyPNCFvDVNzCLM/k7mgBtNuUI93sLEX5g=; b=u97/E0WnvUEcURVesqrw0G3gBHh5O2yDGpKZfijv9rTAOHdygywgiykpVNx6SImov9 2J2E9tyLvZ+atUPSaQS9lU6Zj6UgLFjf53E3VTmgysLuUSvqPK89po1XFV5tIq0uRp4i M+UlhFC4Ezh+/IBEg6sjf6JIoOTFZ5jLNofy6n4LgH6EEtQ1hKsOMLjngtTFAZa+fWJM IPtsLoczeHbPzbHjrhCl7hxs1+HfsuVlQf5QmnKLRCXBlYA5Nzmho01qsVwz9aJvl18A 4IXePWyiUFWZT4A6Cycxlm2d8t9nHCZeiS0c/gpE+mbbDxOF7YIX2VcCxBNSGgRU1nVO cS+g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b10-20020a056402350a00b004283c794eddsi223471edd.285.2022.05.17.13.16.36; Tue, 17 May 2022 13:17:02 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242117AbiEQIMQ (ORCPT + 99 others); Tue, 17 May 2022 04:12:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34518 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242566AbiEQIK4 (ORCPT ); Tue, 17 May 2022 04:10:56 -0400 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C4E72BF2; Tue, 17 May 2022 01:10:52 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id B1EFE67373; Tue, 17 May 2022 10:10:48 +0200 (CEST) Date: Tue, 17 May 2022 10:10:48 +0200 From: Christoph Hellwig To: Pankaj Raghav Cc: axboe@kernel.dk, damien.lemoal@opensource.wdc.com, pankydev8@gmail.com, dsterba@suse.com, hch@lst.de, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, jiangbo.365@bytedance.com, linux-block@vger.kernel.org, gost.dev@samsung.com, linux-kernel@vger.kernel.org, dm-devel@redhat.com Subject: Re: [PATCH v4 00/13] support non power of 2 zoned devices Message-ID: <20220517081048.GA13947@lst.de> References: <20220516165416.171196-1-p.raghav@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220516165416.171196-1-p.raghav@samsung.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm a little surprised about all this activity. I though the conclusion at LSF/MM was that for Linux itself there is very little benefit in supporting this scheme. It will massively fragment the supported based of devices and applications, while only having the benefit of supporting some Samsung legacy devices. So my impression was that this work, while technically feasible, is rather useless. So unless I missed something important I have no interest in supporting this in NVMe.