From patchwork Fri Oct 9 21:55:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 271662 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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 E8ADCC433E7 for ; Fri, 9 Oct 2020 21:57:32 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 58AB72087D for ; Fri, 9 Oct 2020 21:57:32 +0000 (UTC) Authentication-Results: mail.kernel.org; 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Fri, 9 Oct 2020 21:55:37 +0000 (UTC) Received: from blue.redhat.com (ovpn-113-14.phx2.redhat.com [10.3.113.14]) by smtp.corp.redhat.com (Postfix) with ESMTP id EF6B910013C4; Fri, 9 Oct 2020 21:55:33 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Subject: [PATCH v4 0/7] Exposing backing-chain allocation over NBD Date: Fri, 9 Oct 2020 16:55:26 -0500 Message-Id: <20201009215533.1194742-1-eblake@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eblake@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=eblake@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/09 02:34:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-block@nongnu.org, vsementsov@virtuozzo.com, rjones@redhat.com, stefanha@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" v3 was here: https://lists.gnu.org/archive/html/qemu-devel/2020-10/msg02305.html Since then: rebase to master - patch 1 is new, fixing a theoretical bug in QAPI interaction and simplifying later patches - patch 2, 4, and 6 are renamed to favor the term 'metadata context' [Markus], sadly 'git backport-diff' can't see through renames Based-on: <20201009200720.1169904-1-eblake@redhat.com> ([PULL v3 0/8] NBD patches through 2020-10-08) Also available at: https://repo.or.cz/qemu/ericb.git/shortlog/refs/tags/nbd-alloc-depth-v4 001/7:[down] 'nbd: Utilize QAPI_CLONE for type conversion' 002/7:[down] 'nbd: Add new qemu:allocation-depth metadata context' 003/7:[0042] [FC] 'nbd: Add 'qemu-nbd -A' to expose allocation depth' 004/7:[down] 'nbd: Update qapi to support exporting multiple bitmaps' 005/7:[----] [-C] 'nbd: Simplify qemu bitmap context name' 006/7:[down] 'nbd: Refactor counting of metadata contexts' 007/7:[----] [-C] 'nbd: Allow export of multiple bitmaps for one device' Eric Blake (7): nbd: Utilize QAPI_CLONE for type conversion nbd: Add new qemu:allocation-depth metadata context nbd: Add 'qemu-nbd -A' to expose allocation depth nbd: Update qapi to support exporting multiple bitmaps nbd: Simplify qemu bitmap context name nbd: Refactor counting of metadata contexts nbd: Allow export of multiple bitmaps for one device docs/interop/nbd.txt | 27 ++++- docs/tools/qemu-nbd.rst | 8 +- qapi/block-core.json | 7 +- qapi/block-export.json | 22 +++- include/block/nbd.h | 12 ++- blockdev-nbd.c | 29 +++-- nbd/server.c | 210 +++++++++++++++++++++++++++++-------- qemu-nbd.c | 33 ++++-- tests/qemu-iotests/291 | 6 +- tests/qemu-iotests/309 | 73 +++++++++++++ tests/qemu-iotests/309.out | 22 ++++ tests/qemu-iotests/group | 1 + 12 files changed, 364 insertions(+), 86 deletions(-) create mode 100755 tests/qemu-iotests/309 create mode 100644 tests/qemu-iotests/309.out Reviewed-by: Vladimir Sementsov-Ogievskiy