nfsd: add link to owner cache detail to svc_export structure

Without info about owner cache datail it won't be able to find out, which
per-net cache detail have to be.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index f85308e..6445529 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -103,6 +103,7 @@
 	struct nfsd4_fs_locations ex_fslocs;
 	int			ex_nflavors;
 	struct exp_flavor_info	ex_flavors[MAX_SECINFO_LIST];
+	struct cache_detail	*cd;
 };
 
 /* an "export key" (expkey) maps a filehandlefragement to an