Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp2718337ybt; Fri, 3 Jul 2020 17:19:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzqKsOGBxmzD99eAu9izfJjrxiTeSx3ygnWKnNK79ive4P83nJWA2H2b4sccArSjPF1maJT X-Received: by 2002:a05:6402:1ca8:: with SMTP id cz8mr26420458edb.55.1593821972866; Fri, 03 Jul 2020 17:19:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1593821972; cv=none; d=google.com; s=arc-20160816; b=qAuRmSWdIUtjT6Ee4rdyumJVqwZDObWMhkbf4alcqAtBpHqvVIsPnwxP+fKlacYSO1 Wk4J01e8Sb5qlxSQBhRPXAnRrlyo3gARupe9dp2+nPEV2AzTvQOxc6cBBhk0fhxaTCUd icKtiPol0FBZC+DvwRFqLl8bUeRD8EataAjeZHtDB0QaC1ijch0cBSjVVsimfAKgYI05 mSGPUOUAYlPb30hIDbelQAJ4gaf1sHPpi7D4dQjAE8cvjwlnM0HPKX7TSsh4uAz8mMrO 59DELK6sddC4AgRR44AIQqmd9iW8qWPvBJbOYh6oq1tyJhu2OfJfTEVM9mAkVzxTVsWX uyXg== 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 :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=RjoqvG8iXtTNs0XiTTiRgaZYaJN7U0MYTxbwcRDY+Fg=; b=weydfudttskqrvYKSiExSdUTWT0rNl9+SUYqKrjbVQSaHENByh/pkwj4Z8sYfSf1YG v4BZb6GdJLsZ2LBtHkFOT8CxoR6242o7l2FRufesGJEuZWoc2wETup6e/IDwKim0RXTI C8O+U1fraPYU62f7RsoIKGyxdfmvN5c7OCFMAfAyhiSF8V5DilV+KrbBBkQXwS9S4h8D LiWFfbze+iKJUJKmuFEWa/bxvGCOCVBQW2ymiwEV/xkYsCkKv+RigZUOt9tALIXebBqp S0L1YTzyY4lRBRnG88g+0hYn16AYmdLFptBGGFEbj96apc+q3OtKWXJwfgyOghOTIobX zliQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id n19si8824627ejb.704.2020.07.03.17.19.10; Fri, 03 Jul 2020 17:19:32 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726877AbgGDASw (ORCPT + 99 others); Fri, 3 Jul 2020 20:18:52 -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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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