lkml.org 
[lkml]   [2016]   [May]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[for-next][PATCH 1/2] tracing: Remove TRACE_EVENT_FL_USE_CALL_FILTER logic
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>

Nothing sets TRACE_EVENT_FL_USE_CALL_FILTER anymore. Remove it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
include/linux/trace_events.h | 3 --
kernel/trace/trace_events_filter.c | 71 ++++++--------------------------------
2 files changed, 10 insertions(+), 64 deletions(-)

diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 3111a1efdad6..ba6456302e34 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -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,
@@ -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
@@ -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),
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index b3f5051cd4e9..d1d27bf37a19 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -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 */
@@ -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)
@@ -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,
@@ -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,
@@ -1718,69 +1698,38 @@ fail:

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;
}

--
2.8.0.rc3

\
 
 \ /
  Last update: 2016-05-04 16:21    [W:0.086 / U:10.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site