[libvirt] [PATCHv2 2/9] storage: gluster: Introduce dummy functions for creating a volume

Eric Blake eblake at redhat.com
Mon Jan 27 17:49:40 UTC 2014


On 01/16/2014 06:14 AM, Peter Krempa wrote:
> The temporary pool code will need to initialize some fields for the
> temporary gluster volumes. This is done by the createVol function of
> the storage backend. This patch implements only the metadata setting.
> Attempts to create a regular volume yield an error.

It will be nice to allow creation of volumes, but I agree that it can
come later.

> 
> +
> +static int
> +virStorageBackendGlusterSetMetadata(virStorageBackendGlusterStatePtr state,
> +                                    virStorageVolDefPtr vol,
> +                                    const char *name)

Thanks for the refactor; this looks better than v1.

> +static int
> +virStorageBackendGlusterVolCreate(virConnectPtr conn ATTRIBUTE_UNUSED,
> +                                  virStoragePoolObjPtr pool,
> +                                  virStorageVolDefPtr vol,
> +                                  bool internal)
> +{
> +    virStorageBackendGlusterStatePtr state = NULL;
> +    struct stat st;
> +    int ret = -1;
> +
> +    if (!internal) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> +                       _("gluster pool backend doesn't "
> +                         "yet support volume creation"));
> +        goto cleanup;
> +    }
...
> +
> +    if (glfs_stat(state->vol, vol->name, &st) == 0 &&
> +        S_ISDIR(st.st_mode)) {
> +        vol->type = VIR_STORAGE_VOL_NETDIR;
> +        vol->target.format = VIR_STORAGE_FILE_DIR;
> +    }

Shouldn't we error out if S_ISDIR and internal?  That is, the only time
we should be using this function internally is for a regular file, not a
directory.

ACK with that addressed.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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