On 05.01.2016 09:46, Fam Zheng wrote: > The "pnum < nb_sectors" condition in deciding whether to actually copy > data is unnecessarily strict, and the qiov initialization is > unnecessarily for bdrv_aio_write_zeroes and bdrv_aio_discard. > > Rewrite mirror_iteration to fix both flaws. > > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > block/mirror.c | 347 > +++++++++++++++++++++++++++++++++++---------------------- > trace-events | 1 - > 2 files changed, 216 insertions(+), 132 deletions(-)
Side note: This breaks the output of iotest 109, probably due to different alignment of the mirroring operations (doesn't look serious, though). Max
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