tracing: Remove markers

Now that the last users of markers have migrated to the event
tracer we can kill off the (now orphan) support code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20090917173527.GA1699@lst.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

5 files changed, 1 insertions, 156 deletions

diff --git a/samples/Kconfig b/samples/Kconfig
index 428b065ba695..b92bde3c6a89 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -7,12 +7,6 @@ menuconfig SAMPLES
 
 if SAMPLES
 
-config SAMPLE_MARKERS
-        tristate "Build markers examples -- loadable modules only"
-        depends on MARKERS && m
-        help
-          This build markers example modules.
-
 config SAMPLE_TRACEPOINTS
         tristate "Build tracepoints examples -- loadable modules only"
         depends on TRACEPOINTS && m
diff --git a/samples/Makefile b/samples/Makefile
index 13e4b470b539..43343a03b1f4 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -1,3 +1,3 @@
 # Makefile for Linux samples code
 
-obj-$(CONFIG_SAMPLES)   += markers/ kobject/ kprobes/ tracepoints/ trace_events/
+obj-$(CONFIG_SAMPLES)   += kobject/ kprobes/ tracepoints/ trace_events/
diff --git a/samples/markers/Makefile b/samples/markers/Makefile
deleted file mode 100644
index 6d7231265f0f..000000000000
--- a/samples/markers/Makefile
+++ /dev/null
@@ -1,4 +0,0 @@
-# builds the kprobes example kernel modules;
-# then to use one (as root):  insmod <module_name.ko>
-
-obj-$(CONFIG_SAMPLE_MARKERS) += probe-example.o marker-example.o
diff --git a/samples/markers/marker-example.c b/samples/markers/marker-example.c
deleted file mode 100644
index e9cd9c0bc84f..000000000000
--- a/samples/markers/marker-example.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/* marker-example.c
- *
- * Executes a marker when /proc/marker-example is opened.
- *
- * (C) Copyright 2007 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * This file is released under the GPLv2.
- * See the file COPYING for more details.
- */
-
-#include <linux/module.h>
-#include <linux/marker.h>
-#include <linux/sched.h>
-#include <linux/proc_fs.h>
-
-struct proc_dir_entry *pentry_example;
-
-static int my_open(struct inode *inode, struct file *file)
-{
-        int i;
-
-        trace_mark(subsystem_event, "integer %d string %s", 123,
-                "example string");
-        for (i = 0; i < 10; i++)
-                trace_mark(subsystem_eventb, MARK_NOARGS);
-        return -EPERM;
-}
-
-static struct file_operations mark_ops = {
-        .open = my_open,
-};
-
-static int __init example_init(void)
-{
-        printk(KERN_ALERT "example init\n");
-        pentry_example = proc_create("marker-example", 0444, NULL, &mark_ops);
-        if (!pentry_example)
-                return -EPERM;
-        return 0;
-}
-
-static void __exit example_exit(void)
-{
-        printk(KERN_ALERT "example exit\n");
-        remove_proc_entry("marker-example", NULL);
-}
-
-module_init(example_init)
-module_exit(example_exit)
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("Marker example");
diff --git a/samples/markers/probe-example.c b/samples/markers/probe-example.c
deleted file mode 100644
index 2dfb3b32937e..000000000000
--- a/samples/markers/probe-example.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* probe-example.c
- *
- * Connects two functions to marker call sites.
- *
- * (C) Copyright 2007 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * This file is released under the GPLv2.
- * See the file COPYING for more details.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/marker.h>
-#include <asm/atomic.h>
-
-struct probe_data {
-        const char *name;
-        const char *format;
-        marker_probe_func *probe_func;
-};
-
-void probe_subsystem_event(void *probe_data, void *call_data,
-        const char *format, va_list *args)
-{
-        /* Declare args */
-        unsigned int value;
-        const char *mystr;
-
-        /* Assign args */
-        value = va_arg(*args, typeof(value));
-        mystr = va_arg(*args, typeof(mystr));
-
-        /* Call printk */
-        printk(KERN_INFO "Value %u, string %s\n", value, mystr);
-
-        /* or count, check rights, serialize data in a buffer */
-}
-
-atomic_t eventb_count = ATOMIC_INIT(0);
-
-void probe_subsystem_eventb(void *probe_data, void *call_data,
-        const char *format, va_list *args)
-{
-        /* Increment counter */
-        atomic_inc(&eventb_count);
-}
-
-static struct probe_data probe_array[] =
-{
-        {       .name = "subsystem_event",
-                .format = "integer %d string %s",
-                .probe_func = probe_subsystem_event },
-        {       .name = "subsystem_eventb",
-                .format = MARK_NOARGS,
-                .probe_func = probe_subsystem_eventb },
-};
-
-static int __init probe_init(void)
-{
-        int result;
-        int i;
-
-        for (i = 0; i < ARRAY_SIZE(probe_array); i++) {
-                result = marker_probe_register(probe_array[i].name,
-                                probe_array[i].format,
-                                probe_array[i].probe_func, &probe_array[i]);
-                if (result)
-                        printk(KERN_INFO "Unable to register probe %s\n",
-                                probe_array[i].name);
-        }
-        return 0;
-}
-
-static void __exit probe_fini(void)
-{
-        int i;
-
-        for (i = 0; i < ARRAY_SIZE(probe_array); i++)
-                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);
-module_exit(probe_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Mathieu Desnoyers");
-MODULE_DESCRIPTION("SUBSYSTEM Probe");