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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B63C9CF9C6C for ; Sun, 22 Sep 2024 15:29:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=UR+IeCjJEZwHlkYBtGkoMCOZPiyBgfCOh5KTAUCXMFc=; b=txqEFaPdSyO2nY8nWCG3cRROkQ sDuQUzSQW+LV9qx440D/S+46rzBop+GAGlkCbU3NSds9MnMfXowvQOIblxE1DO/Pd+p5gFIq8t/wb XIQNfzVAlmDCgj1SHEnLFam7vobsE9gCnvNSaFj2/TxTTiTJXKGX9b/eyUqexAxOltL9ZCqHtgDQ5 cvq/eTTUcEWwHT14oS9660AYUIa9mSWnzyRvrsPK+75tJpZ/RNoxnmCP0q7g5LgP5+6/PGqQIB1bM 1Rn/NmgIb0A11Vgp4f460YryXsxX6EQJTp0DUda2qHaGFeH8YkwaRj6jKVjU0P0xXL0+Ews6HeFDB wghbVapg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1ssOWO-0000000FMJw-3xJn; Sun, 22 Sep 2024 15:29:12 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1ssOWM-0000000FMJM-2HyU for linux-nvme@lists.infradead.org; Sun, 22 Sep 2024 15:29:11 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id CCE775C4029; Sun, 22 Sep 2024 15:29:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92D6CC4CEC3; Sun, 22 Sep 2024 15:29:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727018949; bh=UR+IeCjJEZwHlkYBtGkoMCOZPiyBgfCOh5KTAUCXMFc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FDuGVUOKmCvyfTeEFt69MpyxdWeRZ1iolKhAPUaE+jHeE9TwijnOSvrvEqeg+0ydt P56QrhsBdOYE7g4GNPSH24xik6O38MxPMcRWONL1lrg4lULZEAFVoeKvrX4QN1lAi0 kukMwLXJaS0cX5ObXL7IwkzycnoRFSzW3RDrBLK/+zfJxWe9IpcZiMw4wZ3TZJYemg 5t1sH4DYtkI4I7zj9IRtqZ1de7/ppqG8jpWMQCGKAFJrzAmn5MqWoCjf9/uYgRWjvD KKl3mXgP5SfL1x3htUdVsHvTzg4Vpk5xKDVoJqDy/+42dA/40xNxyhylIGQF3fdQML AZv73hqR7ECJQ== Date: Sun, 22 Sep 2024 17:29:05 +0200 From: Keith Busch To: Tokunori Ikegami Cc: linux-nvme@lists.infradead.org Subject: Re: [PATCH] nvme-sysfs: add 'lbaf_index' ns attribute Message-ID: References: <20240922053850.5494-1-ikegami.t@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240922053850.5494-1-ikegami.t@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240922_082910_692284_6D525ECC X-CRM114-Status: UNSURE ( 8.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Sun, Sep 22, 2024 at 02:38:18PM +0900, Tokunori Ikegami wrote: > The lbaf_index attriute is needed for the format NVM command. > This is to reduce the identify commands to get the information. I'm not sure how knowing this is particularly useful. You'd have to run the identify namespace command anyway to understand the significance of what the index tells you.