From patchwork Wed May 27 06:22:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 11572013 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 865EB739 for ; Wed, 27 May 2020 06:23:08 +0000 (UTC) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 431F82078C for ; Wed, 27 May 2020 06:23:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="AIrAWR0L" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 431F82078C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dm-devel-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590560587; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=ubZymI8FVx7gEcqj2xwzdrUsUmdNDDRaZ7UHnOnCzVM=; b=AIrAWR0LXMrLJXxz1vBglxTLfxWeDUNrjdL+9n947/uI4z2bt5XWStdS/IOyRGMOnr6+cy rXKUi6EgFFvOCnKJoU1ngg5CqHYPrsu5xTRb2+IHoOL+LJzpqGShXuCa3spm+/p9r+Qm/G IHAbKFX4bP9KGMNhnLrHPjZgb5zT4AQ= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-506-eJqvKeNHPRecmmyey5lNiw-1; Wed, 27 May 2020 02:23:04 -0400 X-MC-Unique: eJqvKeNHPRecmmyey5lNiw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D9E1EA0BD7; Wed, 27 May 2020 06:22:59 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BF16C98A35; Wed, 27 May 2020 06:22:59 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 97D391809557; Wed, 27 May 2020 06:22:59 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 04R6Mlw2015702 for ; Wed, 27 May 2020 02:22:47 -0400 Received: by smtp.corp.redhat.com (Postfix) id B26D9AF9A0; Wed, 27 May 2020 06:22:47 +0000 (UTC) Delivered-To: dm-devel@redhat.com Received: from mimecast-mx02.redhat.com (mimecast06.extmail.prod.ext.rdu2.redhat.com [10.11.55.22]) by smtp.corp.redhat.com (Postfix) with ESMTPS id ADE2E951C1 for ; Wed, 27 May 2020 06:22:44 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-1.mimecast.com [205.139.110.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id CBFF218A6661 for ; Wed, 27 May 2020 06:22:44 +0000 (UTC) Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-474-dHcKj61IP1u_1JAvKVp7vg-1; Wed, 27 May 2020 02:22:42 -0400 X-MC-Unique: dHcKj61IP1u_1JAvKVp7vg-1 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 42C60B2A5; Wed, 27 May 2020 06:22:43 +0000 (UTC) From: Hannes Reinecke To: Mike Snitzer Date: Wed, 27 May 2020 08:22:10 +0200 Message-Id: <20200527062225.72849-1-hare@suse.de> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: dm-devel@redhat.com Cc: Damien LeMoal , dm-devel@redhat.com Subject: [dm-devel] [PATCHv2 00/15] dm-zoned: multi-device support X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Hi all, here's the second version of my patchset to support multiple zoned drives with dm-zoned. This patchset: - Converts the zone array to using xarray for better scalability - Separates out shared structures into per-device structure - Enforce drive-locality for allocating and reclaiming zones - Lifts the restriction of 2 devices to handle an arbitrary number of drives. This gives me a near-perfect scalability by increasing the write speed from 150MB/s (for a cache and one zoned drive) to 300MB/s (for a cache and two zoned drives). Changes to v1: - Include reviews from Damien - Reshuffle patches Hannes Reinecke (15): dm-zoned: add debugging message for reading superblocks dm-zoned: secondary superblock must reside on the same devices than primary superblock dm-zoned: improve logging messages for reclaim dm-zoned: add a 'reserved' zone flag dm-zoned: convert to xarray dm-zoned: temporary superblock for tertiary devices dm-zoned: add device pointer to struct dm_zone dm-zoned: add metadata pointer to struct dmz_dev dm-zoned: allocate dm devices dynamically dm-zoned: per-device reclaim dm-zoned: move random and sequential zones into struct dmz_dev dm-zoned: support arbitrary number of devices dm-zoned: allocate zone by device index dm-zoned: select reclaim zone based on device index dm-zoned: prefer full zones for reclaim drivers/md/dm-zoned-metadata.c | 448 ++++++++++++++++++++++++----------------- drivers/md/dm-zoned-reclaim.c | 95 +++++---- drivers/md/dm-zoned-target.c | 169 ++++++++++------ drivers/md/dm-zoned.h | 77 ++++--- 4 files changed, 481 insertions(+), 308 deletions(-)