commit 3fc11ed07bad37dfefc866e24d92682d7ef1d819
Author: David Smith <dsmith@redhat.com>
Date:   Thu Aug 20 11:27:53 2015 -0500

    Fix PR18856 by making nfsd.close optional.
    
    * tapset/linux/nfsd.stp: Make nfsd.close optional in nfsd.entries (and add
      it optionally to nfsd.return), since the underlying probe point no
      longer exists in kernels 4.2+. Also add nfsd.proc.commit.return to
      nfsd.proc.return (to match nfsd.proc).
    * testsuite/buildok/nfsd-detailed.stp: Make nfsd.close tests optional.

diff --git a/tapset/linux/nfsd.stp b/tapset/linux/nfsd.stp
index 7aebb9c..71956a1 100644
--- a/tapset/linux/nfsd.stp
+++ b/tapset/linux/nfsd.stp
@@ -211,6 +211,7 @@ probe nfsd.proc.entries = nfsd.proc.lookup,
 probe nfsd.proc.return = nfsd.proc.lookup.return,
                          nfsd.proc.read.return,
                          nfsd.proc.write.return,
+                         nfsd.proc.commit.return,
                          nfsd.proc.remove.return,
                          nfsd.proc.rename.return,
                          nfsd.proc.create.return
@@ -1064,7 +1065,7 @@ probe nfsd.entries = nfsd.open,
                      nfsd.createv3,
                      nfsd.unlink,
                      nfsd.rename,
-                     nfsd.close
+                     nfsd.close ?
 {}
 
 probe nfsd.return = nfsd.open.return,
@@ -1075,7 +1076,8 @@ probe nfsd.return = nfsd.open.return,
                     nfsd.create.return,
                     nfsd.createv3.return,
                     nfsd.unlink.return,
-                    nfsd.rename.return
+                    nfsd.rename.return,
+		    nfsd.close.return ?
 {}
 
 /**
@@ -1113,6 +1115,8 @@ probe nfsd.open.return = kernel.function("nfsd_open").return !,
  * probe nfsd.close - NFS server closing a file for client
  *
  * @filename: file name
+ *
+ * This probe point does not exist in kernels starting with 4.2.
  */
 probe nfsd.close = __nfsd.call_close ?, __nfsd.inlined_close ?
 {
diff --git a/testsuite/buildok/nfsd-detailed.stp b/testsuite/buildok/nfsd-detailed.stp
index 627f3a2..f862079 100755
--- a/testsuite/buildok/nfsd-detailed.stp
+++ b/testsuite/buildok/nfsd-detailed.stp
@@ -229,12 +229,12 @@ probe nfsd.open.return
 # nfsd.close tests
 #
 
-probe nfsd.close
+probe nfsd.close ?
 {
 	printf("%s(%s)\n", name, argstr)
 	printf("%s\n", client_ip)
 }
-probe nfsd.close.return
+probe nfsd.close.return ?
 {
 	printf("%s(%s)\n", name, retstr)
 }