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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 42A04C433FF for ; Wed, 31 Jul 2019 13:06:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F0B9206B8 for ; Wed, 31 Jul 2019 13:06:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387862AbfGaNGP (ORCPT ); Wed, 31 Jul 2019 09:06:15 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:40454 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387730AbfGaNGO (ORCPT ); Wed, 31 Jul 2019 09:06:14 -0400 Received: from mail-pf1-f198.google.com ([209.85.210.198]) by youngberry.canonical.com with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1hsoHU-0004Zr-PW for linux-block@vger.kernel.org; Wed, 31 Jul 2019 13:04:37 +0000 Received: by mail-pf1-f198.google.com with SMTP id u21so43187340pfn.15 for ; Wed, 31 Jul 2019 06:04:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:autocrypt :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=ZVJqYCt6y7kDQk5e4VajzmV5IXeiBUBYB5EIHeYIrC0=; b=YDYJI368HlCDT3Ujo4zizQ6lmyco9fQrLtpWLVwgremT/LTNykwOSyZF7Se2xP5wh0 O4C1vupHNxAPk+vb984CCuHBRmuiskSoJucFexX709+Z1GdGwf9yndQ9QcFJx+Ln+3Vz S2fu8f8/JjMsnxhvlqv+iOXxYD4/1073uXVbWUwWW0xfI+q0E06r93axtrJz7eVFk31d NbDECH4Gw1VscY06jcHV8z+EOszjEPhxVv8ZdT0el7J+q6NNBuPPY1quOJhYS7srB5d1 jLByGkVM/V5aFXfqak5WqJ2tVGJEqL50KlU26++RZ/14V55BWhhUQDTe6MWlMShfwXVs sRUA== X-Gm-Message-State: APjAAAUVaLdH3jXyOuYiXkx7OKirxbTFD1xSKkuvj+W+mO8XcVYRL5nV 5Kuy6qWPgrNfmRL/uqltsRNWyuhwwVcT9FfAtZw8Q/qNtUTx4Ag2canUc/M5KerIcfZoqJ9YcNr GZNTNOfISayosDNudIsK/zkood5/X6v/IuXscKNVD X-Received: by 2002:a17:902:b591:: with SMTP id a17mr39314901pls.96.1564578275201; Wed, 31 Jul 2019 06:04:35 -0700 (PDT) X-Google-Smtp-Source: APXvYqwR1CH6m9mU2cXXtekQvrfWE11ZuQqjWDIftLSWs2cw2Yuy7o81N8NFr/tfEfOAEV580sOfRw== X-Received: by 2002:a17:902:b591:: with SMTP id a17mr39314886pls.96.1564578275053; Wed, 31 Jul 2019 06:04:35 -0700 (PDT) Received: from [192.168.1.202] ([152.254.214.186]) by smtp.gmail.com with ESMTPSA id b126sm103400673pfa.126.2019.07.31.06.04.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 31 Jul 2019 06:04:34 -0700 (PDT) Subject: Re: [PATCH 1/2] md/raid0: Introduce new array state 'broken' for raid0 To: NeilBrown , Bob Liu , linux-raid@vger.kernel.org Cc: jay.vosburgh@canonical.com, songliubraving@fb.com, dm-devel@redhat.com, Neil F Brown , linux-block@vger.kernel.org References: <20190729203135.12934-1-gpiccoli@canonical.com> <20190729203135.12934-2-gpiccoli@canonical.com> <87ftmnkpxi.fsf@notabene.neil.brown.name> From: "Guilherme G. Piccoli" Openpgp: preference=signencrypt Autocrypt: addr=gpiccoli@canonical.com; prefer-encrypt=mutual; keydata= mQENBFpVBxcBCADPNKmu2iNKLepiv8+Ssx7+fVR8lrL7cvakMNFPXsXk+f0Bgq9NazNKWJIn Qxpa1iEWTZcLS8ikjatHMECJJqWlt2YcjU5MGbH1mZh+bT3RxrJRhxONz5e5YILyNp7jX+Vh 30rhj3J0vdrlIhPS8/bAt5tvTb3ceWEic9mWZMsosPavsKVcLIO6iZFlzXVu2WJ9cov8eQM/ irIgzvmFEcRyiQ4K+XUhuA0ccGwgvoJv4/GWVPJFHfMX9+dat0Ev8HQEbN/mko/bUS4Wprdv 7HR5tP9efSLucnsVzay0O6niZ61e5c97oUa9bdqHyApkCnGgKCpg7OZqLMM9Y3EcdMIJABEB AAG0LUd1aWxoZXJtZSBHLiBQaWNjb2xpIDxncGljY29saUBjYW5vbmljYWwuY29tPokBNwQT AQgAIQUCWmClvQIbAwULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRDOR5EF9K/7Gza3B/9d 5yczvEwvlh6ksYq+juyuElLvNwMFuyMPsvMfP38UslU8S3lf+ETukN1S8XVdeq9yscwtsRW/ 4YoUwHinJGRovqy8gFlm3SAtjfdqysgJqUJwBmOtcsHkmvFXJmPPGVoH9rMCUr9s6VDPox8f q2W5M7XE9YpsfchS/0fMn+DenhQpV3W6pbLtuDvH/81GKrhxO8whSEkByZbbc+mqRhUSTdN3 iMpRL0sULKPVYbVMbQEAnfJJ1LDkPqlTikAgt3peP7AaSpGs1e3pFzSEEW1VD2jIUmmDku0D LmTHRl4t9KpbU/H2/OPZkrm7809QovJGRAxjLLPcYOAP7DUeltveuQENBFpVBxcBCADbxD6J aNw/KgiSsbx5Sv8nNqO1ObTjhDR1wJw+02Bar9DGuFvx5/qs3ArSZkl8qX0X9Vhptk8rYnkn pfcrtPBYLoux8zmrGPA5vRgK2ItvSc0WN31YR/6nqnMfeC4CumFa/yLl26uzHJa5RYYQ47jg kZPehpc7IqEQ5IKy6cCKjgAkuvM1rDP1kWQ9noVhTUFr2SYVTT/WBHqUWorjhu57/OREo+Tl nxI1KrnmW0DbF52tYoHLt85dK10HQrV35OEFXuz0QPSNrYJT0CZHpUprkUxrupDgkM+2F5LI bIcaIQ4uDMWRyHpDbczQtmTke0x41AeIND3GUc+PQ4hWGp9XABEBAAGJAR8EGAEIAAkFAlpV BxcCGwwACgkQzkeRBfSv+xv1wwgAj39/45O3eHN5pK0XMyiRF4ihH9p1+8JVfBoSQw7AJ6oU 1Hoa+sZnlag/l2GTjC8dfEGNoZd3aRxqfkTrpu2TcfT6jIAsxGjnu+fUCoRNZzmjvRziw3T8 egSPz+GbNXrTXB8g/nc9mqHPPprOiVHDSK8aGoBqkQAPZDjUtRwVx112wtaQwArT2+bDbb/Y Yh6gTrYoRYHo6FuQl5YsHop/fmTahpTx11IMjuh6IJQ+lvdpdfYJ6hmAZ9kiVszDF6pGFVkY kHWtnE2Aa5qkxnA2HoFpqFifNWn5TyvJFpyqwVhVI8XYtXyVHub/WbXLWQwSJA4OHmqU8gDl X18zwLgdiQ== Message-ID: <9dd836f8-7358-834f-8d29-cd0db717d01b@canonical.com> Date: Wed, 31 Jul 2019 10:04:23 -0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <87ftmnkpxi.fsf@notabene.neil.brown.name> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 30/07/2019 21:28, NeilBrown wrote: > On Tue, Jul 30 2019, Bob Liu wrote: >> >> >> Curious why only raid0 has this issue? > > Actually, it isn't only raid0. 'linear' has the same issue. > Probably the fix for raid0 should be applied to linear too. > > NeilBrown > Thanks Neil, it makes sense! I didn't considered "linear" and indeed, after some testing, it reacts exactly as raid0/stripping. In case this patch gets good acceptance I can certainly include md/linear in that! Cheers, Guilherme