Received: by 2002:a05:6500:1b45:b0:1f5:f2ab:c469 with SMTP id cz5csp753484lqb; Wed, 17 Apr 2024 09:40:58 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCUMViKY4UVVzuv3qCqD/XPXY/vu1tDXRv61DOYpkQ1MHTZGdO1BZz6xJuesycZ8ZrAFkB7EHnAbMr8/7vS/jqogeGSHpriy9LmeJVtnAg== X-Google-Smtp-Source: AGHT+IEP3Z0fKtW6yeQrXanXILc9mPVVcp0LD5A+I7nwk7W1CuxPsyl3GyZ1+Yl/y+X8Ti4tblst X-Received: by 2002:a17:90a:38c3:b0:2a5:37cc:cc4e with SMTP id x61-20020a17090a38c300b002a537cccc4emr15134496pjb.32.1713372058040; Wed, 17 Apr 2024 09:40:58 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1713372058; cv=pass; d=google.com; s=arc-20160816; b=krmhdZoOt30QZv3m5tjfNorpvv+Ne92CoDnQgDBFHVNfnVl/nITSa8jHwGwsQy8cIx TknfSI8Q49LJWIUO29tuJoJ/hfYAgotvHAT5HzXGE7bCP0W6Jp8ON+KBvdYmYJcGWv3O SAyo0K6ouj7TFhckkH4sTw9Ddi2CoqAxC2h6k7iUdAENspCwymyXDw2/X+CfL/7uL+9l ET5xZE6QuaMGpFQURY1MAiGCWEjk68w+xNWT/PFdSbbMj564BQDdI2IDrgz+te+j8b+Q cpwLpVkUaeUsXpeNaOJTgsKEixrsZy7Je/RQZ8RMHbcvdRHyfQiYyE/KfKDncyVcqI3W Dd8g== ARC-Message-Signature: i=2; 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=eWzNFXlB6SAhxW1Q6aLn4menaY+NZsNyD6DtIcmAKN8=; fh=JuLDFRaIZ5qT1ofDZduWqTVlumgTZvHS8unClDo7AH4=; b=xnELWHzC9Ddraudp6bxAgQ5ewG5RnOtrmyVOfO+KQHj2SVzmqsbq+BqlbqPCugwVQE km6H3yv2dBUTvzBJlgXyfySrRlNG4cRLSqBeiyxAnya1QojBleN/pDxqcpNQ1gY9kzcB YGlOYPyySzmt85k2dA+QGNL8in1iGI3BjVnCECV7QlY1l7imS6KjvUg7o0+S9dOQxcXe eZcorJPhAykcIJcNO+wbj6/pqdnsKlRdNGgGvwllQjw5x/ZssftrDZ9w0XGoogAUPcDv xoVf/ckBc941gh8R3081iuDCVjlqzUelTdDvyuLO/v/wRquLt9JZEJ5HvbtIXTISSIp2 jugQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=lst.de); spf=pass (google.com: domain of linux-kernel+bounces-148902-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-148902-linux.lists.archive=gmail.com@vger.kernel.org" Return-Path: Received: from sy.mirrors.kernel.org (sy.mirrors.kernel.org. [2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id z5-20020a170903018500b001dc6699f553si11801284plg.360.2024.04.17.09.40.57 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Apr 2024 09:40:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-148902-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=lst.de); spf=pass (google.com: domain of linux-kernel+bounces-148902-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-148902-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 sy.mirrors.kernel.org (Postfix) with ESMTPS id 8BFE4B26461 for ; Wed, 17 Apr 2024 16:23:13 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1DB5F14884C; Wed, 17 Apr 2024 16:23:04 +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 528DE1487ED; Wed, 17 Apr 2024 16:23:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.95.11.211 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713370983; cv=none; b=a+IB9ezKbBBYIsLAQ9M4zuhFaLlAY0MGjO7QdvFJMXAdRRHIMK+vZG/ZlsG3YPy/1j7s0yYU7ZRm67LQ5+tBjLwBiKMWlHvQQNK4xVX9B6uOpjfGvgUhYoa12Gm1516dlY6no/Ex6ZtNHhRx7gaA0KFD41mBq6fw/mCcCjBKcfY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713370983; c=relaxed/simple; bh=pNpAR6fUyvIyqKi57y6ZYwGyUeQlHqA/Ixs/InAdn10=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=a7ildxWrvJfTlz0MsJIhLbrvmaxI5fE0/TryQ9vsrJoGmASJoww5JPQW1A8dt8thMNn8PfstzYA+QHhgwWeoymP7IKIP50rLJvnOuzsAAigaBFFe/5XdBvYyWsBX4KH/0CKxoqzLtP4O9hBIzgR7aHbo7h9TpWqVfPm3cyQs+Ww= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=pass smtp.mailfrom=lst.de; arc=none smtp.client-ip=213.95.11.211 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 513CD227A88; Wed, 17 Apr 2024 18:22:57 +0200 (CEST) Date: Wed, 17 Apr 2024 18:22:57 +0200 From: Christoph Hellwig To: Lennart Poettering Cc: Christoph Hellwig , Keith Busch , Linux regressions mailing list , linux-block@vger.kernel.org, LKML , Jens Axboe Subject: Re: API break, sysfs "capability" file Message-ID: <20240417162257.GA8098@lst.de> References: <20240409141531.GB21514@lst.de> <20240417151350.GB2167@lst.de> <20240417155913.GA6447@lst.de> 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 Wed, Apr 17, 2024 at 06:10:21PM +0200, Lennart Poettering wrote: > Well, there are plenty of other block devices with part scanning off, > such as DM, including dm-crypt, dm-integrity and so on. And that's > certainly stuff we want to cover for this. But there is no good reason to prohibit scanning for them. We can't scan by default as that would probably break a few expectations in userspace, but we can trivially allow manual scanning.