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tracing: Add trace options for tracer options to instances

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Add the tracer options to instances options directory as well. Only add the
options for tracers that are allowed to be enabled by an instance. But note,
that tracer options are global. That is, tracer options enabled in an
instance, also take affect at the top level and in other instances.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat)
2015-09-30 14:27:31 -04:00
committed by Steven Rostedt
parent 16270145ce
commit 37aea98b84
2 changed files with 67 additions and 22 deletions
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9
kernel/trace/trace.h
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@@ -159,6 +159,7 @@ struct trace_array_cpu {
};
struct tracer;
struct trace_option_dentry;
struct trace_buffer {
struct trace_array *tr;
@@ -170,6 +171,11 @@ struct trace_buffer {
#define TRACE_FLAGS_MAX_SIZE 32
struct trace_options {
struct tracer *tracer;
struct trace_option_dentry *topts;
};
/*
* The trace array - an array of per-CPU trace arrays. This is the
* highest level data structure that individual tracers deal with.
@@ -218,6 +224,7 @@ struct trace_array {
#endif
int stop_count;
int clock_id;
int nr_topts;
struct tracer *current_trace;
unsigned int trace_flags;
unsigned char trace_flags_index[TRACE_FLAGS_MAX_SIZE];
@@ -227,6 +234,7 @@ struct trace_array {
struct dentry *options;
struct dentry *percpu_dir;
struct dentry *event_dir;
struct trace_options *topts;
struct list_head systems;
struct list_head events;
cpumask_var_t tracing_cpumask; /* only trace on set CPUs */
@@ -398,7 +406,6 @@ struct tracer {
u32 mask, int set);
struct tracer *next;
struct tracer_flags *flags;
struct trace_option_dentry *topts;
int enabled;
int ref;
bool print_max;