From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7097E48CD1; Mon, 5 Feb 2024 23:42:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707176530; cv=none; b=Jo3sA96ZiUpqzGNsweXeNwiVFUBUKUxToLA/cuQz/S/+OIFMKHsA5ZsNfWsSxvKlARQFZWDc5+Twtt2QWAxlTMU/zMm6BmPvvusMitP/kL09XTLz1DiOB5zkNePsvuYeZC44wXyjTXn7aDWra9ezlRGaeN85km8UxddOtHaTkP8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707176530; c=relaxed/simple; bh=eJCqmMQe44w1+a59VfdTY2VeKJVUxrMJNSwvOZcIw8Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=sNWlksifg7CyL0qnVhDqsxGP2Hhx2pVTHoeMO3ZWiIMFRrVGaFBvX6eE6WgTQGLUHPQu+AHCjPWWBMCljfRW+mWcT9flVKMVgUwQ+ACQdX/QicCStFqRs9MNhiz829QDNRap0YG5XIzK2jvtCoLT+/WchlrYBegdJ5WD/Jz90+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=h5/mt6RM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="h5/mt6RM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4C26C433F1; Mon, 5 Feb 2024 23:42:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1707176530; bh=eJCqmMQe44w1+a59VfdTY2VeKJVUxrMJNSwvOZcIw8Y=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=h5/mt6RM3fsosC/Ji6ghSwydcA7dcHuz0lp9pXuWnttr+FVLm8sO59x5R1EOhjWe5 b8LKmhTL5zj1hTVslzi5QAvfaFoIqq6+mqG2jHSCWvORzPQKLrdfNbDoANXau8HB1j DuiuOCFexLb/7drOf0sQg8kCMIYOZHvcc2Z4/8AhTZogzeUj5GLH1NP94/S3VXEBjW Ld+x18c2f5nGRwzoCj0rec+BpIU62YwYKlPGBVUUTx+6FQZvdszA1JmCa7Gb1LPCDG wuOx4kaRAJPbMf79P0jOOHpvV+AdC0oeYBo0+geSVDGHoxNPElB+iE7DUvaxE6RcOi hByVpQyVNMoAw== Message-ID: Date: Tue, 6 Feb 2024 08:42:08 +0900 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 00/26] Zone write plugging Content-Language: en-US To: Bart Van Assche , linux-block@vger.kernel.org, Jens Axboe , linux-scsi@vger.kernel.org, "Martin K . Petersen" , dm-devel@lists.linux.dev, Mike Snitzer Cc: Christoph Hellwig References: <20240202073104.2418230-1-dlemoal@kernel.org> <7c98aae0-46d1-473d-8d60-8252a96c414a@acm.org> From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <7c98aae0-46d1-473d-8d60-8252a96c414a@acm.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2/6/24 02:21, Bart Van Assche wrote: > On 2/1/24 23:30, Damien Le Moal wrote: >> The patch series introduces zone write plugging (ZWP) as the new >> mechanism to control the ordering of writes to zoned block devices. >> ZWP replaces zone write locking (ZWL) which is implemented only by >> mq-deadline today. ZWP also allows emulating zone append operations >> using regular writes for zoned devices that do not natively support this >> operation (e.g. SMR HDDs). This patch series removes the scsi disk >> driver and device mapper zone append emulation to use ZWP emulation. > > How are SCSI unit attention conditions handled? ???? How does that have anything to do with this series ? Whatever SCSI sd is doing with unit attention conditions remains the same. I did not touch that. -- Damien Le Moal Western Digital Research