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On reopen with existing bitmaps, instead of loading bitmaps, lets reopen them if needed. This also fixes bitmaps migration through shared storage. Consider the case. Persistent bitmaps are stored on bdrv_inactivate. Then, on destination process_incoming_migration_bh() calls bdrv_invalidate_cache_all() which leads to qcow2_load_autoloading_dirty_bitmaps() which fails if bitmaps are already loaded on destination start. Signed-off-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20180320170521.32152-3-vsementsov@virtuozzo.com Signed-off-by: NMax Reitz <mreitz@redhat.com>
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