Re: [libvirt] [PATCH V2 4/4] libxl: add support for rbd qdisk

On Wed, Feb 17, 2016 at 05:33:45PM -0700, Jim Fehlig wrote: > xl/libxl already supports qemu's network-based block backends > such as nbd and rbd. libvirt has supported configuring such > <disk>s for long time too. This patch adds support for rbd > disks in the libxl driver by generating a rbd device URL from > the virDomainDiskDef object. The URL is passed to libxl via the > pdev_path field of libxl_device_disk struct. libxl then passes > the URL to qemu for cosumption by the rbd backend. > > Signed-off-by: Jim Fehlig <jfehlig(a)suse.com&gt; > --- > src/libxl/libxl_conf.c | 192 ++++++++++++++++++++++++++++++++++++++++++++++++- > 1 file changed, 191 insertions(+), 1 deletion(-) > ACK with the whitespace fix. > + > +static int > +libxlMakeNetworkDiskSrc(virStorageSourcePtr src, char **srcstr) > +{ > + virConnectPtr conn = NULL; > + char *secret = NULL; > + char *username = NULL; > + int ret = -1; > + > + *srcstr = NULL; > + if (src->auth && src->protocol == VIR_STORAGE_NET_PROTOCOL_RBD) { > + const char *protocol = virStorageNetProtocolTypeToString(src->protocol); > + > + username = src->auth->username; > + if (!(conn = virConnectOpen("xen:///system"))) > + goto cleanup; > + Opening a connection feels out of place in this function, but I see it's already done for NICs. It would be nice to reuse it as is done in the qemu driver.