updated loopback, xfs, and mount to support non-loopback devices

manifests/storage/loopback.pp

@@ -39,6 +39,7 @@ define swift::storage::loopback(
     mnt_base_dir => $mnt_base_dir,
     byte_size    => $byte_size,
     subscribe    => Exec["create_partition-${name}"],
+    loopback	 => true,
   }
 
 }

manifests/storage/mount.pp

@@ -5,9 +5,14 @@
 #
 define swift::storage::mount(
   $device,
-  $mnt_base_dir = '/srv/node'
+  $mnt_base_dir = '/srv/node',
+  $loopback = false,
 ) {
-
+  if($loopback){
+    $options = 'noatime,nodiratime,nobarrier,logbufs=8,loop'
+  } else {
+    $options = 'noatime,nodiratime,nobarrier,logbufs=8'
+  }
   # the directory that represents the mount point
   # needs to exist
   file { "${mnt_base_dir}/${name}":
@@ -20,7 +25,7 @@ define swift::storage::mount(
     ensure  => present,
     device  => $device,
     fstype  => 'xfs',
-    options => 'loop,noatime,nodiratime,nobarrier,logbufs=8',
+    options => $options,
     require => File["${mnt_base_dir}/${name}"]
   }
 

manifests/storage/xfs.pp

@@ -13,7 +13,8 @@
 define swift::storage::xfs(
   $device,
   $byte_size = '1024',
-  $mnt_base_dir = '/srv/node'
+  $mnt_base_dir = '/srv/node',
+  $loopback = false,
 ) {
 
   include swift::xfs
@@ -29,7 +30,8 @@ define swift::storage::xfs(
   swift::storage::mount { $name:
     device         => $device,
     mnt_base_dir   => $mnt_base_dir,
-    subscribe      => Exec["mkfs-${name}"]
+    subscribe      => Exec["mkfs-${name}"],
+    loopback       => $loopback,
   }
 
 }