--- nlm/nlm_prot_impl.c.sav	2011-12-05 10:59:00.000000000 -0500
+++ nlm/nlm_prot_impl.c	2011-12-05 20:09:03.000000000 -0500
@@ -1774,7 +1774,7 @@ struct vfs_state {
 
 static int
 nlm_get_vfs_state(struct nlm_host *host, struct svc_req *rqstp,
-    fhandle_t *fhp, struct vfs_state *vs)
+    fhandle_t *fhp, struct vfs_state *vs, bool_t exclusive)
 {
 	int error, exflags;
 	struct ucred *cred = NULL, *credanon;
@@ -1816,6 +1816,8 @@ nlm_get_vfs_state(struct nlm_host *host,
 	 * Check cred.
 	 */
 	error = VOP_ACCESS(vs->vs_vp, VWRITE, cred, curthread);
+	if (error != 0 && !exclusive)
+		error = VOP_ACCESS(vs->vs_vp, VREAD, cred, curthread);
 	if (error)
 		goto out;
 
@@ -1896,7 +1898,7 @@ nlm_do_test(nlm4_testargs *argp, nlm4_te
 		goto out;
 	}
 
-	error = nlm_get_vfs_state(host, rqstp, &fh, &vs);
+	error = nlm_get_vfs_state(host, rqstp, &fh, &vs, argp->exclusive);
 	if (error) {
 		result->stat.stat = nlm_convert_error(error);
 		goto out;
@@ -2001,7 +2003,7 @@ nlm_do_lock(nlm4_lockargs *argp, nlm4_re
 		goto out;
 	}
 
-	error = nlm_get_vfs_state(host, rqstp, &fh, &vs);
+	error = nlm_get_vfs_state(host, rqstp, &fh, &vs, argp->exclusive);
 	if (error) {
 		result->stat.stat = nlm_convert_error(error);
 		goto out;
@@ -2180,7 +2182,7 @@ nlm_do_cancel(nlm4_cancargs *argp, nlm4_
 		goto out;
 	}
 
-	error = nlm_get_vfs_state(host, rqstp, &fh, &vs);
+	error = nlm_get_vfs_state(host, rqstp, &fh, &vs, argp->exclusive);
 	if (error) {
 		result->stat.stat = nlm_convert_error(error);
 		goto out;
@@ -2269,7 +2271,11 @@ nlm_do_unlock(nlm4_unlockargs *argp, nlm
 		goto out;
 	}
 
-	error = nlm_get_vfs_state(host, rqstp, &fh, &vs);
+	/*
+	 * Specify FALSE so that it will try the case where there is
+	 * VREAD access, when VWRITE access is denied.
+	 */
+	error = nlm_get_vfs_state(host, rqstp, &fh, &vs, FALSE);
 	if (error) {
 		result->stat.stat = nlm_convert_error(error);
 		goto out;