RE: [Qemu-devel] Sparse file support under windows

[ZIGLIO, Frediano, VF-IT]

Attached updated patch (this time against CVS HEAD)

bye
  Frediano Ziglio

PS: Thanks for apply my patches

> 
> At least the default should be sparse files if the filesystem 
> supports them.
> 
> Fabrice.
> 
> ZIGLIO, Frediano, VF-IT wrote:
> > Good question. As you like... I can remove option if you 
> prefer. I don't
> > know how performs sparse file on windows so perhaps someone 
> can still
> > prefer normal file for performance.
> > 
> > freddy77
> > 
> > 
> > 
> >>OK for the idea, but why is a new option needed ? Sparse file usage 
> >>should be automatic if the filesystem supports it.
> >>
> >>Regards,
> >>
> >>Fabrice.
> >>
> >>ZIGLIO, Frediano, VF-IT wrote:
> >>
> >>>Hi,
> >>>  this patch add sparse file support under Windows 
> >>
> >>(supported on NTFS).
> >>
> >>>It add a -s flag to qemu create and qemu convert. It 
> >>
> >>contain also a new
> >>
> >>>implementation for ftruncate witch not fill manually space 
> >>
> >>but only use
> >>
> >>>SetEndOfFile (so to handle correctly sparse file)
> >>>
> >>>freddy77
> >>>
> >>>
> >>>
> >>>
> >>
> >>--------------------------------------------------------------
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> >>
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> >>
> >>
> >>
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> >>
> > 
> > 
> > 
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> > 
> 
> 
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sparse.diff
Description: sparse.diff