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tracing: Remove TRACE_EVENT_FL_USE_CALL_FILTER logic
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Nothing sets TRACE_EVENT_FL_USE_CALL_FILTER anymore. Remove it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Steven Rostedt (Red Hat) committed May 3, 2016
1 parent 904d185 commit dcb0b55
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Showing 2 changed files with 10 additions and 64 deletions.
3 changes: 0 additions & 3 deletions include/linux/trace_events.h
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Original file line number Diff line number Diff line change
Expand Up @@ -214,7 +214,6 @@ enum {
TRACE_EVENT_FL_NO_SET_FILTER_BIT,
TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
TRACE_EVENT_FL_WAS_ENABLED_BIT,
TRACE_EVENT_FL_USE_CALL_FILTER_BIT,
TRACE_EVENT_FL_TRACEPOINT_BIT,
TRACE_EVENT_FL_KPROBE_BIT,
TRACE_EVENT_FL_UPROBE_BIT,
Expand All @@ -229,7 +228,6 @@ enum {
* WAS_ENABLED - Set and stays set when an event was ever enabled
* (used for module unloading, if a module event is enabled,
* it is best to clear the buffers that used it).
* USE_CALL_FILTER - For trace internal events, don't use file filter
* TRACEPOINT - Event is a tracepoint
* KPROBE - Event is a kprobe
* UPROBE - Event is a uprobe
Expand All @@ -240,7 +238,6 @@ enum {
TRACE_EVENT_FL_NO_SET_FILTER = (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
TRACE_EVENT_FL_IGNORE_ENABLE = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
TRACE_EVENT_FL_WAS_ENABLED = (1 << TRACE_EVENT_FL_WAS_ENABLED_BIT),
TRACE_EVENT_FL_USE_CALL_FILTER = (1 << TRACE_EVENT_FL_USE_CALL_FILTER_BIT),
TRACE_EVENT_FL_TRACEPOINT = (1 << TRACE_EVENT_FL_TRACEPOINT_BIT),
TRACE_EVENT_FL_KPROBE = (1 << TRACE_EVENT_FL_KPROBE_BIT),
TRACE_EVENT_FL_UPROBE = (1 << TRACE_EVENT_FL_UPROBE_BIT),
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71 changes: 10 additions & 61 deletions kernel/trace/trace_events_filter.c
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Original file line number Diff line number Diff line change
Expand Up @@ -689,10 +689,7 @@ static void append_filter_err(struct filter_parse_state *ps,

static inline struct event_filter *event_filter(struct trace_event_file *file)
{
if (file->event_call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
return file->event_call->filter;
else
return file->filter;
return file->filter;
}

/* caller must hold event_mutex */
Expand Down Expand Up @@ -826,12 +823,7 @@ static void __free_preds(struct event_filter *filter)

static void filter_disable(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags &= ~TRACE_EVENT_FL_FILTERED;
else
file->flags &= ~EVENT_FILE_FL_FILTERED;
file->flags &= ~EVENT_FILE_FL_FILTERED;
}

static void __free_filter(struct event_filter *filter)
Expand Down Expand Up @@ -883,13 +875,8 @@ static int __alloc_preds(struct event_filter *filter, int n_preds)

static inline void __remove_filter(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

filter_disable(file);
if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
remove_filter_string(call->filter);
else
remove_filter_string(file->filter);
remove_filter_string(file->filter);
}

static void filter_free_subsystem_preds(struct trace_subsystem_dir *dir,
Expand All @@ -906,15 +893,8 @@ static void filter_free_subsystem_preds(struct trace_subsystem_dir *dir,

static inline void __free_subsystem_filter(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) {
__free_filter(call->filter);
call->filter = NULL;
} else {
__free_filter(file->filter);
file->filter = NULL;
}
__free_filter(file->filter);
file->filter = NULL;
}

static void filter_free_subsystem_filters(struct trace_subsystem_dir *dir,
Expand Down Expand Up @@ -1718,69 +1698,38 @@ static int replace_preds(struct trace_event_call *call,

static inline void event_set_filtered_flag(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags |= TRACE_EVENT_FL_FILTERED;
else
file->flags |= EVENT_FILE_FL_FILTERED;
file->flags |= EVENT_FILE_FL_FILTERED;
}

static inline void event_set_filter(struct trace_event_file *file,
struct event_filter *filter)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
rcu_assign_pointer(call->filter, filter);
else
rcu_assign_pointer(file->filter, filter);
rcu_assign_pointer(file->filter, filter);
}

static inline void event_clear_filter(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
RCU_INIT_POINTER(call->filter, NULL);
else
RCU_INIT_POINTER(file->filter, NULL);
RCU_INIT_POINTER(file->filter, NULL);
}

static inline void
event_set_no_set_filter_flag(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
else
file->flags |= EVENT_FILE_FL_NO_SET_FILTER;
file->flags |= EVENT_FILE_FL_NO_SET_FILTER;
}

static inline void
event_clear_no_set_filter_flag(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
else
file->flags &= ~EVENT_FILE_FL_NO_SET_FILTER;
file->flags &= ~EVENT_FILE_FL_NO_SET_FILTER;
}

static inline bool
event_no_set_filter_flag(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;

if (file->flags & EVENT_FILE_FL_NO_SET_FILTER)
return true;

if ((call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) &&
(call->flags & TRACE_EVENT_FL_NO_SET_FILTER))
return true;

return false;
}

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