On Thu, Jun 18, 2009 at 03:13:06PM -0400, Cole Robinson wrote:
> Cole Robinson wrote:
> > CreateXMLFrom changes accidentally caused all raw volume creation to be
> > fully allocated (as though allocation == capacity). Fix this.
> >
> > Also force CreateXMLFrom to maintain the previous behavior: sparseness
> > should still be maintained since we search for holes when copying, and the
> > clone behavior hasn't been tested with anything but the broken behavior.
> >
> > Signed-off-by: Cole Robinson <crobinso@xxxxxxxxxx>
> > ---
> > src/storage_backend_fs.c | 2 +-
> > src/storage_driver.c | 5 +++++
> > 2 files changed, 6 insertions(+), 1 deletions(-)
> >
> > diff --git a/src/storage_backend_fs.c b/src/storage_backend_fs.c
> > index 0e93e54..c3d66b5 100644
> > --- a/src/storage_backend_fs.c
> > +++ b/src/storage_backend_fs.c
> > @@ -1047,7 +1047,7 @@ static int createRaw(virConnectPtr conn,
> > goto cleanup;
> > }
> >
> > - remain = vol->capacity;
> > + remain = vol->allocation;
> >
> > if (inputfd != -1) {
> > int amtread = -1;
> > diff --git a/src/storage_driver.c b/src/storage_driver.c
> > index 71e64a4..57a93c1 100644
> > --- a/src/storage_driver.c
> > +++ b/src/storage_driver.c
> > @@ -1377,6 +1377,11 @@ storageVolumeCreateXMLFrom(virStoragePoolPtr obj,
> > if (newvol->capacity < origvol->capacity)
> > newvol->capacity = origvol->capacity;
> >
> > + /* Make sure allocation is at least as large as the destination cap,
> > + * to make absolutely sure we copy all possible contents */
> > + if (newvol->allocation < origvol->capacity;
> > + newvol->allocation = origvol->capacity;
> > +
>
> Of course the tweak I make at the last second is completely invalid
> syntax :(. Besides needing the obvious fix above, the patch does work as
> expected.
ACK
Daniel
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