Received: by 2002:a05:7412:e794:b0:fa:551:50a7 with SMTP id o20csp2431768rdd; Fri, 12 Jan 2024 09:10:29 -0800 (PST) X-Google-Smtp-Source: AGHT+IF/IAGui/DiJByaVIp53pLl640n92B/hrD/cpGfax7zfYgFhuH7gDGRQNphYe2uyrmHsfy3 X-Received: by 2002:a17:902:6509:b0:1d4:cfbe:fb1d with SMTP id b9-20020a170902650900b001d4cfbefb1dmr1011552plk.126.1705079429044; Fri, 12 Jan 2024 09:10:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1705079429; cv=none; d=google.com; s=arc-20160816; b=D0Ecyopft3739/8TjTjUaS2/q8fPnjg92FymCu/6meh8vU1pNAAqwwC5FSNOaf+Vu7 g92MAcXgwTR35oyqLO5worV6l7ogRxlg8ylPPMN9dL58awnxgk7I5sZN9ZUAqbAOpdA7 IA8AS1PSM5sGHDSRqkimDLS3tD4ox41mAlvCR5Eri22HQ67v7wYHg5mgx8GcdbdljqqM O4uRMEm2zZvUywpI7RkOmXaXe8mLD2KJ54k31aA5vTtfZfCOYCD0E9fFfAK1Wp5JDwtM 69UugF3rASeVe5PsnIWIlqO27/yMXQ4MlrtulymJRPORRnE3S9toi7tbaMUV3UaNaS5c 99Dw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:references :message-id:subject:cc:to:from:date; bh=TlTZKHCe9BkUd0XlQxHKsIiAoM5ctgWONMF9jU0u1KE=; fh=1CdpoXer6vShx+2+gyVYjOskSLiQJfGKifjffxQ0jEs=; b=ahqF9DmelTFrj72/HuR9LGr/5bM3/hxTOgKiCrKYBFhjTIGvJSdYs4M9GmUrHqSeL8 hsX/kvRo0lz96DSv+W9qS608vlpjhCMloFdWnAhPsDETd+SWuKFBHLHSge/xj9QDdffM E9asJZkZ6xvLvzuU2SGpMrTEfRTwCNXvp34XFCv988IkndxRSboq7MMpFLqEVOo0QP/z wDWD05CS5v9VBWflz7VsesssFIG0X8fmL8oCl6FqJhTz5WphVT438iE7UPyzcZmtBsIP hhAOVyCeTTFQ41InbYF1ovO2aH+40AIVIN74a8o98wiR4HAtm0uZCz57CdZfZ0rhEn/S +Xrg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-24893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-24893-linux.lists.archive=gmail.com@vger.kernel.org" Return-Path: Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id z7-20020a170903018700b001d54e74db4fsi3974785plg.224.2024.01.12.09.10.28 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 09:10:29 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-24893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-24893-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-24893-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 8878D284E43 for ; Fri, 12 Jan 2024 17:10:28 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 343AE175B7; Fri, 12 Jan 2024 17:10:18 +0000 (UTC) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B1151B595; Fri, 12 Jan 2024 17:10:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lst.de Received: by verein.lst.de (Postfix, from userid 2407) id 7130268CFE; Fri, 12 Jan 2024 18:10:10 +0100 (CET) Date: Fri, 12 Jan 2024 18:10:10 +0100 From: Christoph Hellwig To: Song Liu Cc: Geert Uytterhoeven , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, Christoph Hellwig , Jens Axboe , Neil Brown , Guoqing Jiang , Mateusz Grzonka , Jes Sorensen Subject: Re: [PATCH 1/3] md: Remove deprecated CONFIG_MD_LINEAR Message-ID: <20240112171010.GA18360@lst.de> References: <20231214222107.2016042-1-song@kernel.org> <20231214222107.2016042-2-song@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) On Fri, Jan 12, 2024 at 09:08:04AM -0800, Song Liu wrote: > Thanks for the heads-up. I honestly don't know about this use case. > Where can I find/get more information about it? What NAS uses md linear? Either way you can always set up a dm-linear table to get at the data.