[Qemu-block] [PATCH v7 0/2] mirror: Improve zero write and discard

[Fam Zheng]

v7: Add Max's rev-by in patch 2.
    Address Max's comments in patch 1:
    - Fix tail calculation (-1)
    - Don't shadow variable.
    - Fix return value of mirror_cow_align.
    - Reorder a few lines to be clean.
    - "> 0" => ">= 0" for the return value of bdrv_get_block_status_above.

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 | 326 ++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 197 insertions(+), 129 deletions(-)

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2.4.3