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authorIngo Molnar <mingo@elte.hu>2010-07-23 09:10:29 +0200
committerIngo Molnar <mingo@elte.hu>2010-07-23 09:10:29 +0200
commit3a01736e70a7d629140695ba46a901266b4460cc (patch)
tree49ff8ce1e7c6a267f0ce84b5daddbe6666bc4253 /include
parentx86 cpufreq, perf: Make trace_power_frequency cpufreq driver independent (diff)
parenttrace: strlen() return doesn't account for the NULL (diff)
downloadlinux-3a01736e70a7d629140695ba46a901266b4460cc.tar.xz
linux-3a01736e70a7d629140695ba46a901266b4460cc.zip
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
Diffstat (limited to 'include')
-rw-r--r--include/linux/ftrace.h5
-rw-r--r--include/linux/ftrace_event.h12
-rw-r--r--include/trace/ftrace.h12
3 files changed, 16 insertions, 13 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 41e46330d9be..dcd6a7c3a435 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -1,3 +1,8 @@
+/*
+ * Ftrace header. For implementation details beyond the random comments
+ * scattered below, see: Documentation/trace/ftrace-design.txt
+ */
+
#ifndef _LINUX_FTRACE_H
#define _LINUX_FTRACE_H
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 01df7ca4ead7..02b8b24f8f51 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -11,8 +11,6 @@ struct trace_array;
struct tracer;
struct dentry;
-DECLARE_PER_CPU(struct trace_seq, ftrace_event_seq);
-
struct trace_print_flags {
unsigned long mask;
const char *name;
@@ -58,6 +56,9 @@ struct trace_iterator {
struct ring_buffer_iter *buffer_iter[NR_CPUS];
unsigned long iter_flags;
+ /* trace_seq for __print_flags() and __print_symbolic() etc. */
+ struct trace_seq tmp_seq;
+
/* The below is zeroed out in pipe_read */
struct trace_seq seq;
struct trace_entry *ent;
@@ -152,11 +153,13 @@ extern int ftrace_event_reg(struct ftrace_event_call *event,
enum {
TRACE_EVENT_FL_ENABLED_BIT,
TRACE_EVENT_FL_FILTERED_BIT,
+ TRACE_EVENT_FL_RECORDED_CMD_BIT,
};
enum {
- TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
- TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
+ TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
+ TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
+ TRACE_EVENT_FL_RECORDED_CMD = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
};
struct ftrace_event_call {
@@ -174,6 +177,7 @@ struct ftrace_event_call {
* 32 bit flags:
* bit 1: enabled
* bit 2: filter_active
+ * bit 3: enabled cmd record
*
* Changes to flags must hold the event_mutex.
*
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 55c1fd1bbc3d..fb783d94fc54 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -145,7 +145,7 @@
* struct trace_seq *s = &iter->seq;
* struct ftrace_raw_<call> *field; <-- defined in stage 1
* struct trace_entry *entry;
- * struct trace_seq *p;
+ * struct trace_seq *p = &iter->tmp_seq;
* int ret;
*
* entry = iter->ent;
@@ -157,12 +157,10 @@
*
* field = (typeof(field))entry;
*
- * p = &get_cpu_var(ftrace_event_seq);
* trace_seq_init(p);
* ret = trace_seq_printf(s, "%s: ", <call>);
* if (ret)
* ret = trace_seq_printf(s, <TP_printk> "\n");
- * put_cpu();
* if (!ret)
* return TRACE_TYPE_PARTIAL_LINE;
*
@@ -216,7 +214,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##call *field; \
struct trace_entry *entry; \
- struct trace_seq *p; \
+ struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
event = container_of(trace_event, struct ftrace_event_call, \
@@ -231,12 +229,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
- p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", event->name); \
if (ret) \
ret = trace_seq_printf(s, print); \
- put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
@@ -255,7 +251,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##template *field; \
struct trace_entry *entry; \
- struct trace_seq *p; \
+ struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
entry = iter->ent; \
@@ -267,12 +263,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
- p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", #call); \
if (ret) \
ret = trace_seq_printf(s, print); \
- put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\