Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...

[linux.git] / samples / markers / probe-example.c

diff --git a/samples/markers/probe-example.c b/samples/markers/probe-example.c
index 238b2e384fc84187e7c7d63143c02a5cb42992ce..2dfb3b32937e03e7621c30212bdc12880f4c7467 100644 (file)
--- a/samples/markers/probe-example.c
+++ b/samples/markers/probe-example.c
@@ -20,31 +20,27 @@ struct probe_data {
        marker_probe_func *probe_func;
 };
 
-void probe_subsystem_event(const struct marker *mdata, void *private,
-       const char *format, ...)
+void probe_subsystem_event(void *probe_data, void *call_data,
+       const char *format, va_list *args)
 {
-       va_list ap;
        /* Declare args */
        unsigned int value;
        const char *mystr;
 
        /* Assign args */
-       va_start(ap, format);
-       value = va_arg(ap, typeof(value));
-       mystr = va_arg(ap, typeof(mystr));
+       value = va_arg(*args, typeof(value));
+       mystr = va_arg(*args, typeof(mystr));
 
        /* Call printk */
-       printk(KERN_DEBUG "Value %u, string %s\n", value, mystr);
+       printk(KERN_INFO "Value %u, string %s\n", value, mystr);
 
        /* or count, check rights, serialize data in a buffer */
-
-       va_end(ap);
 }
 
 atomic_t eventb_count = ATOMIC_INIT(0);
 
-void probe_subsystem_eventb(const struct marker *mdata, void *private,
-       const char *format, ...)
+void probe_subsystem_eventb(void *probe_data, void *call_data,
+       const char *format, va_list *args)
 {
        /* Increment counter */
        atomic_inc(&eventb_count);
@@ -53,7 +49,7 @@ void probe_subsystem_eventb(const struct marker *mdata, void *private,
 static struct probe_data probe_array[] =
 {
        {       .name = "subsystem_event",
-               .format = "%d %s",
+               .format = "integer %d string %s",
                .probe_func = probe_subsystem_event },
        {       .name = "subsystem_eventb",
                .format = MARK_NOARGS,
@@ -72,10 +68,6 @@ static int __init probe_init(void)
                if (result)
                        printk(KERN_INFO "Unable to register probe %s\n",
                                probe_array[i].name);
-               result = marker_arm(probe_array[i].name);
-               if (result)
-                       printk(KERN_INFO "Unable to arm probe %s\n",
-                               probe_array[i].name);
        }
        return 0;
 }
@@ -85,9 +77,11 @@ static void __exit probe_fini(void)
        int i;
 
        for (i = 0; i < ARRAY_SIZE(probe_array); i++)
-               marker_probe_unregister(probe_array[i].name);
+               marker_probe_unregister(probe_array[i].name,
+                       probe_array[i].probe_func, &probe_array[i]);
        printk(KERN_INFO "Number of event b : %u\n",
                        atomic_read(&eventb_count));
+       marker_synchronize_unregister();
 }
 
 module_init(probe_init);