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 Question: it may be better to make one command instead of two: block-dirty-bitmap-set-enabled(bool enabled) Vladimir Sementsov-Ogievskiy (4): 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/block-core.json | 80 +++++++++++++++++++++++ qapi/transaction.json | 4 ++ include/block/dirty-bitmap.h | 2 + block/dirty-bitmap.c | 21 ++++++ blockdev.c | 151 +++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 258 insertions(+) -- 2.11.1