1 files changed, 21 insertions, 0 deletions

diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index f5abd1306638..27e772cefb6a 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -35,6 +35,27 @@ enum fid_type {
         FILEID_INO32_GEN_PARENT = 2,
 
         /*
+         * 64 bit object ID, 64 bit root object ID,
+         * 32 bit generation number.
+         */
+        FILEID_BTRFS_WITHOUT_PARENT = 0x4d,
+
+        /*
+         * 64 bit object ID, 64 bit root object ID,
+         * 32 bit generation number,
+         * 64 bit parent object ID, 32 bit parent generation.
+         */
+        FILEID_BTRFS_WITH_PARENT = 0x4e,
+
+        /*
+         * 64 bit object ID, 64 bit root object ID,
+         * 32 bit generation number,
+         * 64 bit parent object ID, 32 bit parent generation,
+         * 64 bit parent root object ID.
+         */
+        FILEID_BTRFS_WITH_PARENT_ROOT = 0x4f,
+
+        /*
          * 32 bit block number, 16 bit partition reference,
          * 16 bit unused, 32 bit generation number.
          */