tracing: Pass the trace_array into ftrace_probe_ops functions
Pass the trace_array associated to a ftrace_probe_ops into the probe_ops
func(), init() and free() functions. The trace_array is the descriptor that
describes a tracing instance. This will help create the infrastructure that
will allow having function probes unique to tracing instances.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index 2c8961b..797f087 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -328,21 +328,24 @@
static void
ftrace_traceon_count(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
update_traceon_count(ops, ip, 1);
}
static void
ftrace_traceoff_count(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
update_traceon_count(ops, ip, 0);
}
static void
ftrace_traceon(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
if (tracing_is_on())
return;
@@ -352,7 +355,8 @@
static void
ftrace_traceoff(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
if (!tracing_is_on())
return;
@@ -371,14 +375,16 @@
static void
ftrace_stacktrace(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
trace_dump_stack(STACK_SKIP);
}
static void
ftrace_stacktrace_count(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
struct ftrace_func_mapper *mapper = ops->private_data;
long *count;
@@ -436,7 +442,8 @@
static void
ftrace_dump_probe(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
if (update_count(ops, ip))
ftrace_dump(DUMP_ALL);
@@ -445,7 +452,8 @@
/* Only dump the current CPU buffer. */
static void
ftrace_cpudump_probe(unsigned long ip, unsigned long parent_ip,
- struct ftrace_probe_ops *ops, void **data)
+ struct trace_array *tr, struct ftrace_probe_ops *ops,
+ void **data)
{
if (update_count(ops, ip))
ftrace_dump(DUMP_ORIG);
@@ -473,7 +481,8 @@
static int
ftrace_traceon_print(struct seq_file *m, unsigned long ip,
- struct ftrace_probe_ops *ops, void *data)
+ struct ftrace_probe_ops *ops,
+ void *data)
{
return ftrace_probe_print("traceon", m, ip, ops);
}
@@ -508,8 +517,8 @@
static int
-ftrace_count_init(struct ftrace_probe_ops *ops, unsigned long ip,
- void *data)
+ftrace_count_init(struct ftrace_probe_ops *ops, struct trace_array *tr,
+ unsigned long ip, void *data)
{
struct ftrace_func_mapper *mapper = ops->private_data;
@@ -517,8 +526,8 @@
}
static void
-ftrace_count_free(struct ftrace_probe_ops *ops, unsigned long ip,
- void **_data)
+ftrace_count_free(struct ftrace_probe_ops *ops, struct trace_array *tr,
+ unsigned long ip, void **_data)
{
struct ftrace_func_mapper *mapper = ops->private_data;