nfsd4: implement new 4.1 open reclaim types

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index b875b03..32345c2 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -410,7 +410,10 @@
 	NFS4_OPEN_CLAIM_NULL = 0,
 	NFS4_OPEN_CLAIM_PREVIOUS = 1,
 	NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
-	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3
+	NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
+	NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
+	NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
+	NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
 };
 
 enum opentype4 {