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Date: Tue, 16 Sep 2008 21:56:41 +0300
From: Pekka Paalanen <pq@....fi>
To: Ingo Molnar <mingo@...e.hu>
Cc: Pekka Paalanen <pq@....fi>, Steven Rostedt <rostedt@...dmis.org>,
Frédéric Weisbecker <fweisbec@...il.com>,
Linux Kernel <linux-kernel@...r.kernel.org>,
"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
Pavel Roskin <proski@....org>
Subject: [PATCH 2/7] ftrace: move mmiotrace functions out of trace.c.
>From 743cab2763d3e8d9f4d3b82a02fcdc5ad8a13c04 Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@....fi>
Date: Sun, 14 Sep 2008 16:53:05 +0300
Subject: [PATCH] ftrace: move mmiotrace functions out of trace.c.
Moves the mmiotrace specific functions from trace.c to
trace_mmiotrace.c. Functions trace_wake_up(), tracing_get_trace_entry(),
and tracing_generic_entry_update() are therefore made available outside
trace.c.
Signed-off-by: Pekka Paalanen <pq@....fi>
---
kernel/trace/trace.c | 46 +--------------------------------------
kernel/trace/trace.h | 15 +++++-------
kernel/trace/trace_mmiotrace.c | 42 ++++++++++++++++++++++++++++++++++++
3 files changed, 50 insertions(+), 53 deletions(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 7e6cb4f..d372bc5 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -785,7 +785,7 @@ trace_next_page(struct trace_array_cpu *data, void *addr)
return page_address(page);
}
-static inline struct trace_entry *
+struct trace_entry *
tracing_get_trace_entry(struct trace_array *tr, struct trace_array_cpu *data)
{
unsigned long idx, idx_next;
@@ -821,7 +821,7 @@ tracing_get_trace_entry(struct trace_array *tr, struct trace_array_cpu *data)
return entry;
}
-static inline void
+void
tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags)
{
struct task_struct *tsk = current;
@@ -865,48 +865,6 @@ ftrace(struct trace_array *tr, struct trace_array_cpu *data,
trace_function(tr, data, ip, parent_ip, flags);
}
-#ifdef CONFIG_MMIOTRACE
-void __trace_mmiotrace_rw(struct trace_array *tr, struct trace_array_cpu *data,
- struct mmiotrace_rw *rw)
-{
- struct trace_entry *entry;
- unsigned long irq_flags;
-
- raw_local_irq_save(irq_flags);
- __raw_spin_lock(&data->lock);
-
- entry = tracing_get_trace_entry(tr, data);
- tracing_generic_entry_update(entry, 0);
- entry->type = TRACE_MMIO_RW;
- entry->field.mmiorw = *rw;
-
- __raw_spin_unlock(&data->lock);
- raw_local_irq_restore(irq_flags);
-
- trace_wake_up();
-}
-
-void __trace_mmiotrace_map(struct trace_array *tr, struct trace_array_cpu *data,
- struct mmiotrace_map *map)
-{
- struct trace_entry *entry;
- unsigned long irq_flags;
-
- raw_local_irq_save(irq_flags);
- __raw_spin_lock(&data->lock);
-
- entry = tracing_get_trace_entry(tr, data);
- tracing_generic_entry_update(entry, 0);
- entry->type = TRACE_MMIO_MAP;
- entry->field.mmiomap = *map;
-
- __raw_spin_unlock(&data->lock);
- raw_local_irq_restore(irq_flags);
-
- trace_wake_up();
-}
-#endif
-
void __trace_stack(struct trace_array *tr,
struct trace_array_cpu *data,
unsigned long flags,
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 77c265f..9d39aa0 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -213,11 +213,17 @@ struct trace_iterator {
long idx;
};
+void trace_wake_up(void);
void tracing_reset(struct trace_array_cpu *data);
int tracing_open_generic(struct inode *inode, struct file *filp);
struct dentry *tracing_init_dentry(void);
void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
+struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
+ struct trace_array_cpu *data);
+void tracing_generic_entry_update(struct trace_entry *entry,
+ unsigned long flags);
+
void ftrace(struct trace_array *tr,
struct trace_array_cpu *data,
unsigned long ip,
@@ -291,15 +297,6 @@ extern unsigned long ftrace_update_tot_cnt;
extern int DYN_FTRACE_TEST_NAME(void);
#endif
-#ifdef CONFIG_MMIOTRACE
-extern void __trace_mmiotrace_rw(struct trace_array *tr,
- struct trace_array_cpu *data,
- struct mmiotrace_rw *rw);
-extern void __trace_mmiotrace_map(struct trace_array *tr,
- struct trace_array_cpu *data,
- struct mmiotrace_map *map);
-#endif
-
#ifdef CONFIG_FTRACE_STARTUP_TEST
#ifdef CONFIG_FTRACE
extern int trace_selftest_startup_function(struct tracer *trace,
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index 9b7a936..ef02747 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -276,6 +276,27 @@ __init static int init_mmio_trace(void)
}
device_initcall(init_mmio_trace);
+static void __trace_mmiotrace_rw(struct trace_array *tr,
+ struct trace_array_cpu *data,
+ struct mmiotrace_rw *rw)
+{
+ struct trace_entry *entry;
+ unsigned long irq_flags;
+
+ raw_local_irq_save(irq_flags);
+ __raw_spin_lock(&data->lock);
+
+ entry = tracing_get_trace_entry(tr, data);
+ tracing_generic_entry_update(entry, 0);
+ entry->type = TRACE_MMIO_RW;
+ entry->field.mmiorw = *rw;
+
+ __raw_spin_unlock(&data->lock);
+ raw_local_irq_restore(irq_flags);
+
+ trace_wake_up();
+}
+
void mmio_trace_rw(struct mmiotrace_rw *rw)
{
struct trace_array *tr = mmio_trace_array;
@@ -283,6 +304,27 @@ void mmio_trace_rw(struct mmiotrace_rw *rw)
__trace_mmiotrace_rw(tr, data, rw);
}
+static void __trace_mmiotrace_map(struct trace_array *tr,
+ struct trace_array_cpu *data,
+ struct mmiotrace_map *map)
+{
+ struct trace_entry *entry;
+ unsigned long irq_flags;
+
+ raw_local_irq_save(irq_flags);
+ __raw_spin_lock(&data->lock);
+
+ entry = tracing_get_trace_entry(tr, data);
+ tracing_generic_entry_update(entry, 0);
+ entry->type = TRACE_MMIO_MAP;
+ entry->field.mmiomap = *map;
+
+ __raw_spin_unlock(&data->lock);
+ raw_local_irq_restore(irq_flags);
+
+ trace_wake_up();
+}
+
void mmio_trace_mapping(struct mmiotrace_map *map)
{
struct trace_array *tr = mmio_trace_array;
--
1.5.6.4
--
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