We need to lock qcow2 mutex on accessing in-image metadata, especially on updating this metadata. Let's implement it.
Vladimir Sementsov-Ogievskiy (3): block: move bdrv_can_store_new_dirty_bitmap to block/dirty-bitmap.c block/dirty-bitmap: return int from bdrv_remove_persistent_dirty_bitmap block/qcow2: proper locking on bitmap add/remove paths block/qcow2.h | 14 ++--- include/block/block_int.h | 14 ++--- include/block/dirty-bitmap.h | 5 +- block.c | 22 ------- block/dirty-bitmap.c | 119 +++++++++++++++++++++++++++++++++-- block/qcow2-bitmap.c | 36 +++++++---- block/qcow2.c | 5 +- blockdev.c | 28 +++------ 8 files changed, 163 insertions(+), 80 deletions(-) -- 2.18.0