nfs41: remove server-only EXCHGID4_FLAG_CONFIRMED_R flag from exchange_id

Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e07f6c7..dfd1ea9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4349,6 +4349,9 @@
 	dprintk("--> %s\n", __func__);
 	BUG_ON(clp == NULL);
 
+	/* Remove server-only flags */
+	args.flags &= ~EXCHGID4_FLAG_CONFIRMED_R;
+
 	p = (u32 *)verifier.data;
 	*p++ = htonl((u32)clp->cl_boot_time.tv_sec);
 	*p = htonl((u32)clp->cl_boot_time.tv_nsec);