Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp1136946ybe; Fri, 6 Sep 2019 12:25:12 -0700 (PDT) X-Google-Smtp-Source: APXvYqyWBwSzjBAXzoFW9BIdDTbQ8fdRWtQlX3QOvioOcEOVvnrY9TqLqfRzlFZ1sN+1WlhdT+Jg X-Received: by 2002:a17:90a:c386:: with SMTP id h6mr11337891pjt.122.1567797912203; Fri, 06 Sep 2019 12:25:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1567797912; cv=none; d=google.com; s=arc-20160816; b=qHJd/d15m+pFT/BD2sMlSNrfkWE0E8k6lCRPhD45iWFh8PUx/Q433pDeJlEjMXpVOp ZyICcSDHVl4F2FYImAs6vZ8wFvj3yXywi3KfCpWfKrETcWJhAODchRu90QjRARS3r/Dm FZm6g55qimtCGMT/0ld9/Z27I9K07VtyVC4VfC84WyKuLvZDXnqVtkZrp6AHeqGg2OAJ XOt+l/O4Fgdusacvl6KLrFcJ0nfmbUKuAqaLOEgVI6ToFipatKv21qPOzXkYKVApO5Uh ML9fJXfeb4MPGvkO96gnSErT4RGtgSs/gQ4U3j/8YgU1zr5ER8/ua8QNrI+VT7ify9fY 8N8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :organization:references:in-reply-to:message-id:subject:cc:to:from :date; bh=XijpIeINKHFbFPKwdZ/xfKarkeNYec+pTbeu+sGrinI=; b=v0jxdymPt4rBYsF+jZ7Ngn0A0BKtq7CQMhowaoCU0vRHgUcVCqti1ib2qauffHm+pm zeUVMqIEtx0arF+Y10dWGNRFUMjuL7z+UUWescLiCPMZr4qWkstY9MOHqtTGIsZuCZQA tzcLKcqaTuJlxudvhPW76wo/RXQAQR/ZO1W1IPTmaCQma3f+qEIKTyAwYeptrG8ZMcVf vl8RVB2Xn4h+Lc6a79wiWRcBTc5nwKU6lKRfmGRzus7S9fxZ8+NB6+0VoBhNQpJ6jh8G I7d6jG2IMqR2H5JGaclU/h5hUHFv78ha4WHyS3m/brFSI27yrWrxmlFGITG3oaKY0C62 oH6g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g7si6982401pfr.4.2019.09.06.12.24.57; Fri, 06 Sep 2019 12:25:12 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2393055AbfIFOna (ORCPT + 99 others); Fri, 6 Sep 2019 10:43:30 -0400 Received: from ms.lwn.net ([45.79.88.28]:36586 "EHLO ms.lwn.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732020AbfIFOna (ORCPT ); Fri, 6 Sep 2019 10:43:30 -0400 Received: from lwn.net (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 436F997D; Fri, 6 Sep 2019 14:43:29 +0000 (UTC) Date: Fri, 6 Sep 2019 08:43:28 -0600 From: Jonathan Corbet To: Adam Borowski Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Documentation: sysrq: don't recommend 'S' 'U' before 'B' Message-ID: <20190906084328.6c052d25@lwn.net> In-Reply-To: <20190903160840.56652-1-kilobyte@angband.pl> References: <20190903160840.56652-1-kilobyte@angband.pl> Organization: LWN.net MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 3 Sep 2019 18:08:40 +0200 Adam Borowski wrote: > This advice is obsolete and slightly harmful for filesystems from this > millenium: any modern filesystem can handle unexpected crashes without > requiring fsck -- and on the other hand, trying to write to the disk when > the kernel is in a bad state risks introducing corruption. > > For ext2, any unsafe shutdown meant widespread breakage, but it's no longer > a reasonable filesystem for any non-special use. > > Signed-off-by: Adam Borowski Makes sense to me. Applied, thanks. jon