1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 12291a7ee275..5b9b5b317180 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -83,6 +83,11 @@ enum fid_type {
          * 64 bit parent inode number.
          */
         FILEID_NILFS_WITH_PARENT = 0x62,
+
+        /*
+         * Filesystems must not use 0xff file ID.
+         */
+        FILEID_INVALID = 0xff,
 };
 
 struct fid {
@@ -177,6 +182,8 @@ struct export_operations {
         int (*commit_metadata)(struct inode *inode);
 };
 
+extern int exportfs_encode_inode_fh(struct inode *inode, struct fid *fid,
+                                    int *max_len, struct inode *parent);
 extern int exportfs_encode_fh(struct dentry *dentry, struct fid *fid,
         int *max_len, int connectable);
 extern struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,