From: Liu Yuan <namei.unix@gmail.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>,
sheepdog@lists.wpkg.org, qemu-devel <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 2/2] sheepdog: implement .bdrv_co_is_allocated()
Date: Tue, 23 Apr 2013 13:55:23 +0800 [thread overview]
Message-ID: <5176224B.9090405@gmail.com> (raw)
In-Reply-To: <CAJSP0QVa0fe83j2YhOq2S+23Aj+zqRWxhFjBpaO5fjQt8-2xDw@mail.gmail.com>
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
prev parent reply other threads:[~2013-04-23 5:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-22 6:59 [Qemu-devel] [PATCH v2 0/2] implement .bdrv_co_is_allocated Liu Yuan
2013-04-22 6:59 ` [Qemu-devel] [PATCH v2 1/2] sheepdog: use BDRV_SECTOR_SIZE Liu Yuan
2013-04-22 6:59 ` [Qemu-devel] [PATCH v2 2/2] sheepdog: implement .bdrv_co_is_allocated() Liu Yuan
2013-04-22 12:00 ` Stefan Hajnoczi
2013-04-22 12:10 ` Liu Yuan
2013-04-22 15:03 ` Stefan Hajnoczi
2013-04-22 15:18 ` Liu Yuan
2013-04-22 20:46 ` Stefan Hajnoczi
2013-04-23 5:55 ` Liu Yuan [this message]
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