volume_id: add support for btrfs

function                                             old     new   delta
volume_id_probe_btrfs                                  -      96     +96
fs2                                                   48      52      +4
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/0 up/down: 100/0)             Total: 100 bytes

Signed-off-by: Vladimir Dronnikov <dronnikov@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/util-linux/Config.in b/util-linux/Config.in
index 578d059c1..36664de50 100644
--- a/util-linux/Config.in
+++ b/util-linux/Config.in
@@ -451,6 +451,13 @@ config FEATURE_VOLUMEID_EXT
         help
           TODO
 
+config FEATURE_VOLUMEID_BTRFS
+        bool "btrfs filesystem"
+        default n
+        depends on VOLUMEID
+        help
+          TODO
+
 config FEATURE_VOLUMEID_REISERFS
         bool "Reiser filesystem"
         default n