On 10/30/2013 05:30 PM, Eric Blake wrote:
> Actually put gfapi to use, by allowing the creation of a gluster
> pool. Right now, all volumes are treated as raw; further patches
> will allow peering into files to allow for qcow2 files and backing
> chains, and reporting proper volume allocation.
>
Needs a v2 for several reasons:
> +
> +static void
> +virStorageBackendGlusterClose(virStorageBackendGlusterStatePtr state)
> +{
> + if (!state || !state->vol)
> + return;
> + /* Yuck - glusterfs-api-3.4.1 appears to always return -1 for
> + * glfs_fini, with errno containing random data, so there's no way
> + * to tell if it succeeded. 3.4.2 is supposed to fix this.*/
> + if (glfs_fini(state->vol) < 0)
> + VIR_DEBUG("shutdown of gluster failed with errno %d", errno);
> +}
Leaks state.
> +
> +static virStorageBackendGlusterStatePtr
> +virStorageBackendGlusterOpen(virStoragePoolObjPtr pool)
> +{
> + virStorageBackendGlusterStatePtr ret = NULL;
> +
> + if (VIR_ALLOC(ret) < 0)
> + return NULL;
> +
> + if (!(ret->vol = glfs_new(pool->def->source.name))) {
Fails for subdirectory access (qemu allows gluster://host/vol/dir/file,
so we should allow vol/dir as a pool name in the XML, but glfs requires
us to open vol then chdir to dir, rather than opening vol/dir in one go).
> + virReportOOMError();
> + goto error;
> + }
> +
> + /* FIXME: allow alternate transport in the pool xml */
> + if (glfs_set_volfile_server(ret->vol, "tcp",
> + pool->def->source.hosts[0].name,
> + pool->def->source.hosts[0].port) < 0 ||
> + glfs_init(ret->vol) < 0) {
> + virReportSystemError(errno, _("failed to connect to gluster %s/%s"),
> + pool->def->source.hosts[0].name,
> + pool->def->name);
Reports the wrong name (should be pool->def->source.name).
And I'm still working on the followup patches for qcow2 metadata parsing...
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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