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([185.215.60.153]) by smtp.gmail.com with ESMTPSA id z26-20020ac2419a000000b004484bf6d1e6sm30539lfh.233.2022.03.31.12.57.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Mar 2022 12:57:12 -0700 (PDT) From: Vladimir Sementsov-Ogievskiy X-Google-Original-From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [PATCH 0/3] backup: discard-source parameter Date: Thu, 31 Mar 2022 22:56:58 +0300 Message-Id: <20220331195701.220690-1-vsementsov@openvz.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::12a (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::12a; envelope-from=vladimir.sementsov-ogievskiy@openvz.org; helo=mail-lf1-x12a.google.com X-Spam_score_int: -4 X-Spam_score: -0.5 X-Spam_bar: / X-Spam_report: (-0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, v.sementsov-og@mail.ru, wencongyang2@huawei.com, xiechanglong.d@gmail.com, qemu-devel@nongnu.org, armbru@redhat.com, jsnow@redhat.com, hreitz@redhat.com, Vladimir Sementsov-Ogievskiy , eblake@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all! Here is a new option for backup, that brings two things into push-backup-with-fleecing scheme: - discard copied region in temporary image to save disk space - avoid extra copy-before-write operation in the region that is already copied This is based on "[PATCH v5 00/45] Transactional block-graph modifying API" Based-on: <20220330212902.590099-1-vsementsov@openvz.org> Vladimir Sementsov-Ogievskiy (3): block/copy-before-write: create block_copy bitmap in filter node qapi: blockdev-backup: add discard-source parameter iotests: add backup-discard-source block/backup.c | 5 +- block/block-copy.c | 13 +- block/copy-before-write.c | 4 +- block/replication.c | 4 +- blockdev.c | 2 +- include/block/block-copy.h | 3 +- include/block/block_int-global-state.h | 2 +- qapi/block-core.json | 4 + tests/qemu-iotests/257.out | 112 ++++++------- .../qemu-iotests/tests/backup-discard-source | 154 ++++++++++++++++++ .../tests/backup-discard-source.out | 5 + 11 files changed, 240 insertions(+), 68 deletions(-) create mode 100755 tests/qemu-iotests/tests/backup-discard-source create mode 100644 tests/qemu-iotests/tests/backup-discard-source.out -- 2.35.1