From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51918) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebQlR-0002oa-Nz for qemu-devel@nongnu.org; Tue, 16 Jan 2018 07:54:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ebQlM-00077H-07 for qemu-devel@nongnu.org; Tue, 16 Jan 2018 07:54:53 -0500 Received: from mailhub.sw.ru ([195.214.232.25]:26698 helo=relay.sw.ru) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ebQlL-00076V-LF for qemu-devel@nongnu.org; Tue, 16 Jan 2018 07:54:47 -0500 From: Vladimir Sementsov-Ogievskiy Date: Tue, 16 Jan 2018 15:54:21 +0300 Message-Id: <20180116125427.18540-1-vsementsov@virtuozzo.com> Subject: [Qemu-devel] [PATCH v2 0/6] qmp dirty bitmap API List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-block@nongnu.org Cc: eblake@redhat.com, armbru@redhat.com, mreitz@redhat.com, kwolf@redhat.com, jsnow@redhat.com, famz@redhat.com, vsementsov@virtuozzo.com, den@openvz.org, nshirokovskiy@virtuozzo.com, mnestratov@virtuozzo.com Hi all. There are three qmp commands, needed to implement external backup API. Using these three commands, client may do all needed bitmap management by hand: on backup start we need to do a transaction: {disable old bitmap, create new bitmap} on backup success: drop old bitmap on backup fail: enable old bitmap merge new bitmap to old bitmap drop new bitmap v2: fix merge command deadlock add new patches: 1 and 6 Vladimir Sementsov-Ogievskiy (6): block: maintain persistent disabled bitmaps block/dirty-bitmap: add lock to bdrv_enable/disable_dirty_bitmap qapi: add block-dirty-bitmap-enable/disable qmp: transaction support for block-dirty-bitmap-enable/disable qapi: add block-dirty-bitmap-merge qapi: add disabled parameter to block-dirty-bitmap-add qapi/block-core.json | 92 ++++++++++++++++++++++- qapi/transaction.json | 4 + block/qcow2.h | 2 +- include/block/dirty-bitmap.h | 3 +- block/dirty-bitmap.c | 42 ++++++----- block/qcow2-bitmap.c | 12 +-- block/qcow2.c | 2 +- blockdev.c | 169 +++++++++++++++++++++++++++++++++++++++++-- 8 files changed, 287 insertions(+), 39 deletions(-) -- 2.11.1