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Date: Thu, 23 Aug 2012 09:34:40 +0200
From: =?iso-8859-1?Q?Beno=EEt?= Canet <benoit.canet@irqsave.net>
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	<5034E6A2.7060900@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH V4 1/2] qapi: Add SnapshotInfo and
	ImageInfo.
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To: Eric Blake <eblake@redhat.com>
Cc: aliguori@us.ibm.com, =?iso-8859-1?Q?Beno=EEt?= Canet <benoit.canet@gmail.com>, stefanha@linux.vnet.ibm.com, qemu-devel@nongnu.org, pbonzini@redhat.com, xiawenc@linux.vnet.ibm.com

> > +##
> > +# @ImageInfo:
> > +#
> > +# Information about a QEMU image file
> > +#
> > +# @filename: name of the image file
> > +#
> > +# @format: format of the image file
> > +#
> > +# @virtual-size: maximum capacity in bytes of the image
> > +#
> > +# @actual-size: #optional actual size on disk in bytes of the image
>=20
> That seems backwards - with a raw file, don't you know the actual size,
> but have no idea what it can further grow to?
Try the current qemy-img info on a raw file you will be surprised of the =
results.
This field also can have an "unavailable" value.

example result with unpatched qemu-img:

benoit@Laure:~/qemu$ qemu-img info truc1.raw=20
image: truc1.raw
file format: raw
virtual size: 1.0G (1073741824 bytes)
disk size: 776M

disk size is actual-size.

Beno=EEt