Yet another tiny bit extracted from block mirroring, looks like it should be useful for block commit too.
Paolo Bonzini (2): block: copy over job and dirty bitmap fields in bdrv_append block: introduce bdrv_swap, implement bdrv_append on top of it block.c | 175 +++++++++++++++++++++++++++++++++++++-------------------------- block.h | 1 + 2 files changed, 103 insertions(+), 73 deletions(-) -- 1.7.10.2
