On Thu, 04/07 16:40, Paolo Bonzini wrote: > > > On 29/03/2016 17:08, Kevin Wolf wrote: > > From: Max Reitz <mre...@redhat.com> > > > > Passing -S 0 to qemu-img convert should result in all source data being > > copied to the output, even if that source data is known to be 0. The > > output image should therefore have exactly the same size on disk as an > > image which we explicitly filled with data. > > > > Signed-off-by: Max Reitz <mre...@redhat.com> > > Reviewed-by: Fam Zheng <f...@redhat.com> > > Signed-off-by: Kevin Wolf <kw...@redhat.com> > > This fails with XFS and raw format, which preallocates an extra cluster > at the end of the file created with qemu-io (so that the on-disk size is > 2056 512-byte blocks).
Maybe squash in http://patchwork.ozlabs.org/patch/603047/ ? Fam
