tracing/events: Move TRACE_SYSTEM outside of include guard
If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h>
will be included and compiled, otherwise it will be
<trace/events/TRACE_SYSTEM.h>
So TRACE_SYSTEM should be defined outside of #if proctection,
just like TRACE_INCLUDE_FILE.
Imaging this scenario:
#include <trace/events/foo.h>
-> TRACE_SYSTEM == foo
...
#include <trace/events/bar.h>
-> TRACE_SYSTEM == bar
...
#define CREATE_TRACE_POINTS
#include <trace/events/foo.h>
-> TRACE_SYSTEM == bar !!!
and then bar.h will be included and compiled.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index d6b05f4..9a74b46 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -1,3 +1,6 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM block
+
#if !defined(_TRACE_BLOCK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_BLOCK_H
@@ -5,9 +8,6 @@
#include <linux/blkdev.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM block
-
TRACE_EVENT(block_rq_abort,
TP_PROTO(struct request_queue *q, struct request *rq),
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index acf4cc9..8eb82cc 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1,9 +1,9 @@
-#if !defined(_TRACE_EXT4_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_EXT4_H
-
#undef TRACE_SYSTEM
#define TRACE_SYSTEM ext4
+#if !defined(_TRACE_EXT4_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_EXT4_H
+
#include <linux/writeback.h>
#include "../../../fs/ext4/ext4.h"
#include "../../../fs/ext4/mballoc.h"
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index b0c7ede..1cb0c3a 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM irq
+
#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_IRQ_H
#include <linux/tracepoint.h>
#include <linux/interrupt.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM irq
-
#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
#define show_softirq_name(val) \
__print_symbolic(val, \
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 845b0b4..10813fa 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM jbd2
+
#if !defined(_TRACE_JBD2_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_JBD2_H
#include <linux/jbd2.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM jbd2
-
TRACE_EVENT(jbd2_checkpoint,
TP_PROTO(journal_t *journal, int result),
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index 9baba50..1493c54 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kmem
+
#if !defined(_TRACE_KMEM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KMEM_H
#include <linux/types.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM kmem
-
/*
* The order of these masks is important. Matching masks will be seen
* first and the left over flags will end up showing by themselves.
diff --git a/include/trace/events/lockdep.h b/include/trace/events/lockdep.h
index 0e956c9..bcf1d20 100644
--- a/include/trace/events/lockdep.h
+++ b/include/trace/events/lockdep.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM lockdep
+
#if !defined(_TRACE_LOCKDEP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_LOCKDEP_H
#include <linux/lockdep.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM lockdep
-
#ifdef CONFIG_LOCKDEP
TRACE_EVENT(lock_acquire,
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 24ab5bc..8949bb7 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM sched
+
#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SCHED_H
#include <linux/sched.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM sched
-
/*
* Tracepoint for calling kthread_stop, performed to end a kthread:
*/
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 1e8fabb..e499863b 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -1,12 +1,12 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM skb
+
#if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SKB_H
#include <linux/skbuff.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM skb
-
/*
* Tracepoint for free an sk_buff:
*/
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 035f1bf..fcfd9a1 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -1,3 +1,6 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM workqueue
+
#if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_WORKQUEUE_H
@@ -5,9 +8,6 @@
#include <linux/sched.h>
#include <linux/tracepoint.h>
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM workqueue
-
TRACE_EVENT(workqueue_insertion,
TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),