v6: Address Paolo's comments in mirror_iteration:
    - break if we've already got a chunk to work on;
    - fix a typo in comment.

Patch 1 rewrites mirror_iteration. Patch 2 is a small DRY cleaning up.


Fam Zheng (2):
  mirror: Rewrite mirror_iteration
  mirror: Add mirror_wait_for_io

 block/mirror.c | 325 ++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 196 insertions(+), 129 deletions(-)

-- 
2.4.3


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