Re: [Qemu-devel] [PATCH 16/19] qcow2: Use byte granularity in qcow2_alloc_cluster_offset()

[Kevin Wolf]

Am 25.03.2013 um 18:30 hat Kevin Wolf geschrieben:
> This gets rid of the nb_clusters and keep_clusters and the associated
> complicated calculations. Just advance the number of bytes that have
> been processed and everything is fine.
> 
> This patch advances the variables even after the last operation even
> though they aren't used any more afterwards to make things look more
> uniform. A later patch will turn the whole thing into a loop and then
> it actually starts making sense.
> 
> Signed-off-by: Kevin Wolf <address@hidden>

For the record: This is the one that causes the performance regression.
I'll look into it in more detail tomorrow.

Kevin