From mboxrd@z Thu Jan 1 00:00:00 1970 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 04FCE3AB282; Fri, 22 May 2026 08:52:22 +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=1779439955; cv=none; b=IviX1Ti542nbbq9B2wHAk7fyFh5tcBUFE7Ih0MwnKhQF/BA/ocfSW5znCP95VcvTmTUjg1bWGkvPPDUWM/Cn4FzmzqG2i4VgA+0OglGdwzoELs5JS1Nrw7FFuC+Z0X5/O7YgRfcgjlQlzRfAYR+Mqp7jjX6BZFfqJng+lEhu6p0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779439955; c=relaxed/simple; bh=2TQQl9UZw4gX7irz1cO1vHtyLtPiVjtLfhgexJXeWlU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=VRIqEiFIB9nX59GJ1/M1T2M73rh4ZN/X82IFXKY8lQv1bPF+6iQ4vsidtfp2sigB7exXzD6Ekg4wQzclJiY4AGAKUsiX/AbZmPCmzDdcseiSQRrfpM1D1iQSaFW8pDWRKX1Ax96tqpWnDxJ5x+dDR1gwbGQvVIwxWc1A5yWvD7Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (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=pass (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 602E468AFE; Fri, 22 May 2026 10:52:11 +0200 (CEST) Date: Fri, 22 May 2026 10:52:11 +0200 From: Christoph Hellwig To: Qu Wenruo Cc: linux-btrfs@vger.kernel.org, hch@lst.de, linux-raid@vger.kernel.org Subject: Re: [PATCH RFC] btrfs: disguise single-data-RAID56 as RAID1/RAID1C3 Message-ID: <20260522085211.GA6702@lst.de> References: Precedence: bulk X-Mailing-List: linux-raid@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) Hi Qu, this does looks sensible to me. Maybe add an xfstests case that exercises these using loop devices?