[sheepdog] [Qemu-devel] [PATCH v2 2/2] sheepdog: implement .bdrv_co_is_allocated()

[Liu Yuan]

On 04/23/2013 04:46 AM, Stefan Hajnoczi wrote:
> The first sector is included in nb_sectors.  Mathematically the range
> is defined as [sector_num, sector_num + nb_sectors).  Notice the
> half-open interval, sector_num + nb_sectors is excluded.  The last
> included sector is sector_num + nb_sectors - 1.
> 
> You can look at qcow2's implementation, especially
> count_contiguous_clusters() to double-check.

Okay, thanks for you explanation. I'll update it in v4.

Yuan