Adding a missing comment
diff --git a/openstack/blockstorage/v1/volumes/util.go b/openstack/blockstorage/v1/volumes/util.go
index 0e2f16e..1dda695 100644
--- a/openstack/blockstorage/v1/volumes/util.go
+++ b/openstack/blockstorage/v1/volumes/util.go
@@ -4,6 +4,8 @@
 	"github.com/rackspace/gophercloud"
 )
 
+// WaitForStatus will continually poll the resource, checking for a particular
+// status. It will do this for the amount of seconds defined.
 func WaitForStatus(c *gophercloud.ServiceClient, id, status string, secs int) error {
 	return gophercloud.WaitFor(secs, func() (bool, error) {
 		current, err := Get(c, id).Extract()