[libvirt] [PATCH] rbd: Use rbd_create3 to create RBD format 2 images by default
Daniel P. Berrange
berrange at redhat.com
Tue Feb 11 12:13:18 UTC 2014
On Thu, Jan 30, 2014 at 03:19:11PM +0100, Wido den Hollander wrote:
> This new RBD format supports snapshotting and cloning. By having
> libvirt create images in format 2 end-users of the created images
> can benefit from the new RBD format.
>
> Older versions of libvirt can work with this new RBD format as long
> as librbd supports format 2. RBD format is supported by librbd since
> version 0.56 (Ceph Bobtail).
>
> Signed-off-by: Wido den Hollander <wido at widodh.nl>
> ---
> src/storage/storage_backend_rbd.c | 22 ++++++++++++++++++++--
> 1 file changed, 20 insertions(+), 2 deletions(-)
>
> diff --git a/src/storage/storage_backend_rbd.c b/src/storage/storage_backend_rbd.c
> index c5f0bc5..91c07ac 100644
> --- a/src/storage/storage_backend_rbd.c
> +++ b/src/storage/storage_backend_rbd.c
> @@ -458,6 +458,25 @@ virStorageBackendRBDCreateVol(virConnectPtr conn ATTRIBUTE_UNUSED,
> return 0;
> }
>
> +static int virStorageBackendRBDCreateImage(rados_ioctx_t io,
> + char *name, long capacity)
> +{
> + int order = 0;
> + #if LIBRBD_VERSION_CODE > 260
> + uint64_t features = 3;
> + uint64_t stripe_count = 1;
> + uint64_t stripe_unit = 4194304;
> +
> + if (rbd_create3(io, name, capacity, features, &order,
> + stripe_count, stripe_unit) < 0) {
> + #else
> + if (rbd_create(io, name, capacity, &order) < 0) {
> + #endif
The '#if' indentation violates style rules - please remember
to run 'make syntax-check' before submitting.
ACK and I've pushed with the indentation fix
Daniel
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