[CIFS] DFS support: provide shrinkable mounts

Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 09898b8..6ba43fb 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -10,4 +10,4 @@
 
 cifs-$(CONFIG_CIFS_UPCALL) += cifs_spnego.o
 
-cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o
+cifs-$(CONFIG_CIFS_DFS_UPCALL) += dns_resolve.o cifs_dfs_ref.o