From: wcohen <wcohen>
Date: Tue, 24 Apr 2007 15:21:01 +0000 (+0000)
Subject: 	* tapset/memory.stp:	Add matching vm.pagefault.return
X-Git-Tag: release-0.5.14~129
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=d113ceaefa4dc24df10ffa1591e2315c1268b759;p=systemtap.git

	* tapset/memory.stp:	Add matching vm.pagefault.return
	* testsuite/buildok/memory.stp: Test vm.pagefault.return.
---

diff --git a/ChangeLog b/ChangeLog
index 3acc80678..e41c60a68 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-04-24  Will Cohen  <wcohen@redhat.com>
+
+	* tapset/memory.stp:	Add matching vm.pagefault.return
+	* testsuite/buildok/memory.stp: Test vm.pagefault.return.
+
 2007-04-24  Martin Hunt  <hunt@redhat.com>
 
 	* stp_check.in: More tweaking of mount statement.
diff --git a/tapset/memory.stp b/tapset/memory.stp
index a3ed628fb..61c77dff1 100644
--- a/tapset/memory.stp
+++ b/tapset/memory.stp
@@ -26,6 +26,23 @@ probe vm.pagefault = kernel.function(
 	address =  $address
 }
 
+/* probe vm.pagefault.return
+ *
+ *  Records type of fault that occurred.
+ *
+ * Context:
+ *  The process which triggered the fault.
+ *
+ * Arguments:
+ *  fault_type - type of fault
+ */
+probe vm.pagefault.return = kernel.function(
+        %( kernel_v >= "2.6.13" %? "__handle_mm_fault" %: "handle_mm_fault" %)
+        ).return
+{
+	fault_type = $return
+}
+
 /* Return which node the given address belongs to in a NUMA system */
 function addr_to_node:long(addr:long)  /* pure */ 
 %{
diff --git a/testsuite/buildok/memory.stp b/testsuite/buildok/memory.stp
index ce9f28cb6..12d4e4a78 100755
--- a/testsuite/buildok/memory.stp
+++ b/testsuite/buildok/memory.stp
@@ -3,3 +3,8 @@ probe vm.pagefault
 {
 	printf("ppname: %s, %d, %p\n", probefunc(), write_access, address)
 }
+
+probe vm.pagefault.return
+{
+	printf("ppname: %s, %d\n", probefunc(), fault_type)
+}