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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 50776C433E0 for ; Sat, 4 Jul 2020 00:18:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3AAF420739 for ; Sat, 4 Jul 2020 00:18:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726844AbgGDASv (ORCPT ); Fri, 3 Jul 2020 20:18:51 -0400 Received: from smtp.hosts.co.uk ([85.233.160.19]:59867 "EHLO smtp.hosts.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726474AbgGDASv (ORCPT ); Fri, 3 Jul 2020 20:18:51 -0400 Received: from host86-157-102-29.range86-157.btcentralplus.com ([86.157.102.29] helo=[192.168.1.65]) by smtp.hosts.co.uk with esmtpa (Exim) (envelope-from ) id 1jrVtJ-0009yP-AV; Sat, 04 Jul 2020 01:18:49 +0100 Subject: Re: [PATCH 09/16] initrd: remove the BLKFLSBUF call in handle_initrd To: "H. Peter Anvin" , Christoph Hellwig , linux-kernel@vger.kernel.org Cc: Song Liu , Al Viro , Linus Torvalds , linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org References: <20200615125323.930983-1-hch@lst.de> <20200615125323.930983-10-hch@lst.de> <514b0176-d235-f640-b278-9a7d49af356f@zytor.com> From: antlists Message-ID: Date: Sat, 4 Jul 2020 01:18:48 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <514b0176-d235-f640-b278-9a7d49af356f@zytor.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On 03/07/2020 04:40, H. Peter Anvin wrote: > On 2020-06-15 05:53, Christoph Hellwig wrote: >> BLKFLSBUF used to be overloaded for the ramdisk driver to free the whole >> ramdisk, which was completely different behavior compared to all other >> drivers. But this magic overload got removed in commit ff26956875c2 >> ("brd: remove support for BLKFLSBUF"), so this call is entirely >> pointless now. >> >> Signed-off-by: Christoph Hellwig > > Does *anyone* use initrd as opposed to initramfs anymore? It would seem > like a good candidate for deprecation/removal. > Reading the gentoo mailing list, it seems there's a fair few people who don't use initramfs. I get the impression they don't use initrd either, though. I don't know too much about booting without an initramfs - I switched ages ago - so what is possible and what they're actually doing, I don't know. Cheers, Wol