[libvirt] [PATCH 1/2] resize: add virStorageVolResize() API
Daniel P. Berrange
berrange at redhat.com
Mon Jan 30 11:08:39 UTC 2012
On Fri, Jan 27, 2012 at 05:28:15PM -0700, Eric Blake wrote:
> From: "Zeeshan Ali (Khattak)" <zeeshanak at gnome.org>
>
> Add a new function to allow changing of capacity of storage volumes.
> Plan out several flags, even if not all of them will be implemented
> up front.
>
> Expose the new command via 'virsh vol-resize'.
>
> Signed-off-by: Eric Blake <eblake at redhat.com>
> ---
> include/libvirt/libvirt.h.in | 11 ++++++
> python/generator.py | 1 +
> src/driver.h | 5 +++
> src/libvirt.c | 76 ++++++++++++++++++++++++++++++++++++++
> src/libvirt_public.syms | 1 +
> tools/virsh.c | 82 ++++++++++++++++++++++++++++++++++++++++++
> tools/virsh.pod | 11 ++++++
> 7 files changed, 187 insertions(+), 0 deletions(-)
>
> diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
> index e99cd00..d26cbbd 100644
> --- a/include/libvirt/libvirt.h.in
> +++ b/include/libvirt/libvirt.h.in
> @@ -2386,6 +2386,17 @@ char * virStorageVolGetXMLDesc (virStorageVolPtr pool,
>
> char * virStorageVolGetPath (virStorageVolPtr vol);
>
> +typedef enum {
> + VIR_STORAGE_VOL_RESIZE_ALLOCATE = 1 << 0, /* force allocation of new size */
> + VIR_STORAGE_VOL_RESIZE_DELTA = 1 << 1, /* size is relative to current */
> + VIR_STORAGE_VOL_RESIZE_SHRINK = 1 << 2, /* allow decrease in capacity */
> +} virStorageVolResizeFlags;
> +
> +int virStorageVolResize (virStorageVolPtr vol,
> + long long capacity,
> + unsigned int flags);
Why has this changed from 'unsigned long long' to just 'long long'.
In virStorageVolInfo we use 'unsigned long long', and you can't ever
have a negative capacity, so I don't see why this should be signed.
Daniel
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