nfs4.1: Add SP4_MACH_CRED cleanup support

CLOSE and LOCKU can use the machine credential.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 9f7b919..c0ba338 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -94,6 +94,7 @@
 	unsigned long		cl_sp4_flags;
 #define NFS_SP4_MACH_CRED_MINIMAL  1	/* Minimal sp4_mach_cred - state ops
 					 * must use machine cred */
+#define NFS_SP4_MACH_CRED_CLEANUP  2	/* CLOSE and LOCKU */
 #endif /* CONFIG_NFS_V4 */
 
 #ifdef CONFIG_NFS_FSCACHE