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Re: [Qemu-devel] [RFC PATCH 0/2] Migration: support working on file:url


From: Hailiang Zhang
Subject: Re: [Qemu-devel] [RFC PATCH 0/2] Migration: support working on file:url
Date: Fri, 22 Jul 2016 14:28:47 +0800
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1

On 2016/7/21 20:19, Daniel P. Berrange wrote:
On Thu, Jul 21, 2016 at 01:05:58PM +0800, zhanghailiang wrote:
It is more simple to use file:url to migrate VM into file.
Besides, it will be used in memory snapshot.

NB, you can already migrate into a file

    "exec:/bin/cat > /path/to/file"

and likewise

   qemu -incoming "exec:/bin/cat /path/to/file"

This avoids the problem with POSIX I/O on plain files not actually
supporting O_NONBLOCK in any sensible manner, which your file:
suggestion suffers from.


OK, got it, please ignore this series. Thanks.

Regards,
Daniel





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