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tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_* 

The name "ftrace" really refers to the function hook infrastructure. It
is not about the trace_events. The FTRACE_EVENT_FL_* flags are flags to
do with the trace_event files in the tracefs directory. They are not related
to function tracing. Rename them to a more descriptive name.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2015-05-13 15:12:33 -04:00 committed by Steven Rostedt
parent 7967b3e0c4
commit 5d6ad960a7
6 changed files with 75 additions and 75 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
include/linux/trace_events.h
View File

@ -250,11 +250,11 @@ enum {
* FILTERED - The event has a filter attached
* CAP_ANY - Any user can enable for perf
* NO_SET_FILTER - Set when filter has error and is to be ignored
* IGNORE_ENABLE - For ftrace internal events, do not enable with debugfs file
* IGNORE_ENABLE - For trace internal events, do not enable with debugfs file
* 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 ftrace internal events, don't use file filter
* USE_CALL_FILTER - For trace internal events, don't use file filter
* TRACEPOINT - Event is a tracepoint
* KPROBE - Event is a kprobe
*/
@ -286,7 +286,7 @@ struct trace_event_call {
* bit 0: filter_active
* bit 1: allow trace by non root (cap any)
* bit 2: failed to apply filter
* bit 3: ftrace internal event (do not enable)
* bit 3: trace internal event (do not enable)
* bit 4: Event was enabled by module
* bit 5: use call filter rather than file filter
* bit 6: Event is a tracepoint
@ -316,18 +316,18 @@ struct trace_array;
struct trace_subsystem_dir;
enum {
FTRACE_EVENT_FL_ENABLED_BIT,
FTRACE_EVENT_FL_RECORDED_CMD_BIT,
FTRACE_EVENT_FL_FILTERED_BIT,
FTRACE_EVENT_FL_NO_SET_FILTER_BIT,
FTRACE_EVENT_FL_SOFT_MODE_BIT,
FTRACE_EVENT_FL_SOFT_DISABLED_BIT,
FTRACE_EVENT_FL_TRIGGER_MODE_BIT,
FTRACE_EVENT_FL_TRIGGER_COND_BIT,
EVENT_FILE_FL_ENABLED_BIT,
EVENT_FILE_FL_RECORDED_CMD_BIT,
EVENT_FILE_FL_FILTERED_BIT,
EVENT_FILE_FL_NO_SET_FILTER_BIT,
EVENT_FILE_FL_SOFT_MODE_BIT,
EVENT_FILE_FL_SOFT_DISABLED_BIT,
EVENT_FILE_FL_TRIGGER_MODE_BIT,
EVENT_FILE_FL_TRIGGER_COND_BIT,
};
/*
* Ftrace event file flags:
* Event file flags:
* ENABLED - The event is enabled
* RECORDED_CMD - The comms should be recorded at sched_switch
* FILTERED - The event has a filter attached
@ -339,14 +339,14 @@ enum {
* TRIGGER_COND - When set, one or more triggers has an associated filter
*/
enum {
FTRACE_EVENT_FL_ENABLED = (1 << FTRACE_EVENT_FL_ENABLED_BIT),
FTRACE_EVENT_FL_RECORDED_CMD = (1 << FTRACE_EVENT_FL_RECORDED_CMD_BIT),
FTRACE_EVENT_FL_FILTERED = (1 << FTRACE_EVENT_FL_FILTERED_BIT),
FTRACE_EVENT_FL_NO_SET_FILTER = (1 << FTRACE_EVENT_FL_NO_SET_FILTER_BIT),
FTRACE_EVENT_FL_SOFT_MODE = (1 << FTRACE_EVENT_FL_SOFT_MODE_BIT),
FTRACE_EVENT_FL_SOFT_DISABLED = (1 << FTRACE_EVENT_FL_SOFT_DISABLED_BIT),
FTRACE_EVENT_FL_TRIGGER_MODE = (1 << FTRACE_EVENT_FL_TRIGGER_MODE_BIT),
FTRACE_EVENT_FL_TRIGGER_COND = (1 << FTRACE_EVENT_FL_TRIGGER_COND_BIT),
EVENT_FILE_FL_ENABLED = (1 << EVENT_FILE_FL_ENABLED_BIT),
EVENT_FILE_FL_RECORDED_CMD = (1 << EVENT_FILE_FL_RECORDED_CMD_BIT),
EVENT_FILE_FL_FILTERED = (1 << EVENT_FILE_FL_FILTERED_BIT),
EVENT_FILE_FL_NO_SET_FILTER = (1 << EVENT_FILE_FL_NO_SET_FILTER_BIT),
EVENT_FILE_FL_SOFT_MODE = (1 << EVENT_FILE_FL_SOFT_MODE_BIT),
EVENT_FILE_FL_SOFT_DISABLED = (1 << EVENT_FILE_FL_SOFT_DISABLED_BIT),
EVENT_FILE_FL_TRIGGER_MODE = (1 << EVENT_FILE_FL_TRIGGER_MODE_BIT),
EVENT_FILE_FL_TRIGGER_COND = (1 << EVENT_FILE_FL_TRIGGER_COND_BIT),
};
struct trace_event_file {
@ -439,10 +439,10 @@ ftrace_trigger_soft_disabled(struct trace_event_file *file)
{
unsigned long eflags = file->flags;
if (!(eflags & FTRACE_EVENT_FL_TRIGGER_COND)) {
if (eflags & FTRACE_EVENT_FL_TRIGGER_MODE)
if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
event_triggers_call(file, NULL);
if (eflags & FTRACE_EVENT_FL_SOFT_DISABLED)
if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
return true;
}
return false;
@ -470,10 +470,10 @@ __event_trigger_test_discard(struct trace_event_file *file,
{
unsigned long eflags = file->flags;
if (eflags & FTRACE_EVENT_FL_TRIGGER_COND)
if (eflags & EVENT_FILE_FL_TRIGGER_COND)
*tt = event_triggers_call(file, entry);
if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &file->flags))
if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags))
ring_buffer_discard_commit(buffer, event);
else if (!filter_check_discard(file, entry, buffer, event))
return false;

10
include/trace/perf.h
View File

@ -21,10 +21,10 @@
* int __data_size;
* int pc;
*
* if (!(eflags & FTRACE_EVENT_FL_TRIGGER_COND)) {
* if (eflags & FTRACE_EVENT_FL_TRIGGER_MODE)
* if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
* if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
* event_triggers_call(trace_file, NULL);
* if (eflags & FTRACE_EVENT_FL_SOFT_DISABLED)
* if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
* return;
* }
*
@ -44,10 +44,10 @@
* { <assign>; } <-- Here we assign the entries by the __field and
* __array macros.
*
* if (eflags & FTRACE_EVENT_FL_TRIGGER_COND)
* if (eflags & EVENT_FILE_FL_TRIGGER_COND)
* __tt = event_triggers_call(trace_file, entry);
*
* if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT,
* if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT,
* &trace_file->flags))
* ring_buffer_discard_commit(buffer, event);
* else if (!filter_check_discard(trace_file, entry, buffer, event))

4
kernel/trace/trace.c
View File

@ -301,7 +301,7 @@ int filter_check_discard(struct trace_event_file *file, void *rec,
struct ring_buffer *buffer,
struct ring_buffer_event *event)
{
if (unlikely(file->flags & FTRACE_EVENT_FL_FILTERED) &&
if (unlikely(file->flags & EVENT_FILE_FL_FILTERED) &&
!filter_match_preds(file->filter, rec)) {
ring_buffer_discard_commit(buffer, event);
return 1;
@ -1709,7 +1709,7 @@ trace_event_buffer_lock_reserve(struct ring_buffer **current_rb,
* to store the trace event for the tigger to use. It's recusive
* safe and will not be recorded anywhere.
*/
if (!entry && trace_file->flags & FTRACE_EVENT_FL_TRIGGER_COND) {
if (!entry && trace_file->flags & EVENT_FILE_FL_TRIGGER_COND) {
*current_rb = temp_buffer;
entry = trace_buffer_lock_reserve(*current_rb,
type, len, flags, pc);

62
kernel/trace/trace_events.c
View File

@ -298,15 +298,15 @@ void trace_event_enable_cmd_record(bool enable)
mutex_lock(&event_mutex);
do_for_each_event_file(tr, file) {
if (!(file->flags & FTRACE_EVENT_FL_ENABLED))
if (!(file->flags & EVENT_FILE_FL_ENABLED))
continue;
if (enable) {
tracing_start_cmdline_record();
set_bit(FTRACE_EVENT_FL_RECORDED_CMD_BIT, &file->flags);
set_bit(EVENT_FILE_FL_RECORDED_CMD_BIT, &file->flags);
} else {
tracing_stop_cmdline_record();
clear_bit(FTRACE_EVENT_FL_RECORDED_CMD_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_RECORDED_CMD_BIT, &file->flags);
}
} while_for_each_event_file();
mutex_unlock(&event_mutex);
@ -337,24 +337,24 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
if (soft_disable) {
if (atomic_dec_return(&file->sm_ref) > 0)
break;
disable = file->flags & FTRACE_EVENT_FL_SOFT_DISABLED;
clear_bit(FTRACE_EVENT_FL_SOFT_MODE_BIT, &file->flags);
disable = file->flags & EVENT_FILE_FL_SOFT_DISABLED;
clear_bit(EVENT_FILE_FL_SOFT_MODE_BIT, &file->flags);
} else
disable = !(file->flags & FTRACE_EVENT_FL_SOFT_MODE);
disable = !(file->flags & EVENT_FILE_FL_SOFT_MODE);
if (disable && (file->flags & FTRACE_EVENT_FL_ENABLED)) {
clear_bit(FTRACE_EVENT_FL_ENABLED_BIT, &file->flags);
if (file->flags & FTRACE_EVENT_FL_RECORDED_CMD) {
if (disable && (file->flags & EVENT_FILE_FL_ENABLED)) {
clear_bit(EVENT_FILE_FL_ENABLED_BIT, &file->flags);
if (file->flags & EVENT_FILE_FL_RECORDED_CMD) {
tracing_stop_cmdline_record();
clear_bit(FTRACE_EVENT_FL_RECORDED_CMD_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_RECORDED_CMD_BIT, &file->flags);
}
call->class->reg(call, TRACE_REG_UNREGISTER, file);
}
/* If in SOFT_MODE, just set the SOFT_DISABLE_BIT, else clear it */
if (file->flags & FTRACE_EVENT_FL_SOFT_MODE)
set_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &file->flags);
if (file->flags & EVENT_FILE_FL_SOFT_MODE)
set_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags);
else
clear_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags);
break;
case 1:
/*
@ -366,22 +366,22 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
* it still seems to be disabled.
*/
if (!soft_disable)
clear_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags);
else {
if (atomic_inc_return(&file->sm_ref) > 1)
break;
set_bit(FTRACE_EVENT_FL_SOFT_MODE_BIT, &file->flags);
set_bit(EVENT_FILE_FL_SOFT_MODE_BIT, &file->flags);
}
if (!(file->flags & FTRACE_EVENT_FL_ENABLED)) {
if (!(file->flags & EVENT_FILE_FL_ENABLED)) {
/* Keep the event disabled, when going to SOFT_MODE. */
if (soft_disable)
set_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &file->flags);
set_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags);
if (trace_flags & TRACE_ITER_RECORD_CMD) {
tracing_start_cmdline_record();
set_bit(FTRACE_EVENT_FL_RECORDED_CMD_BIT, &file->flags);
set_bit(EVENT_FILE_FL_RECORDED_CMD_BIT, &file->flags);
}
ret = call->class->reg(call, TRACE_REG_REGISTER, file);
if (ret) {
@ -390,7 +390,7 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
"%s\n", trace_event_name(call));
break;
}
set_bit(FTRACE_EVENT_FL_ENABLED_BIT, &file->flags);
set_bit(EVENT_FILE_FL_ENABLED_BIT, &file->flags);
/* WAS_ENABLED gets set but never cleared. */
call->flags |= TRACE_EVENT_FL_WAS_ENABLED;
@ -716,7 +716,7 @@ s_next(struct seq_file *m, void *v, loff_t *pos)
(*pos)++;
list_for_each_entry_continue(file, &tr->events, list) {
if (file->flags & FTRACE_EVENT_FL_ENABLED)
if (file->flags & EVENT_FILE_FL_ENABLED)
return file;
}
@ -774,12 +774,12 @@ event_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
if (!file)
return -ENODEV;
if (flags & FTRACE_EVENT_FL_ENABLED &&
!(flags & FTRACE_EVENT_FL_SOFT_DISABLED))
if (flags & EVENT_FILE_FL_ENABLED &&
!(flags & EVENT_FILE_FL_SOFT_DISABLED))
strcpy(buf, "1");
if (flags & FTRACE_EVENT_FL_SOFT_DISABLED ||
flags & FTRACE_EVENT_FL_SOFT_MODE)
if (flags & EVENT_FILE_FL_SOFT_DISABLED ||
flags & EVENT_FILE_FL_SOFT_MODE)
strcat(buf, "*");
strcat(buf, "\n");
@ -851,7 +851,7 @@ system_enable_read(struct file *filp, char __user *ubuf, size_t cnt,
* or if all events or cleared, or if we have
* a mixture.
*/
set |= (1 << !!(file->flags & FTRACE_EVENT_FL_ENABLED));
set |= (1 << !!(file->flags & EVENT_FILE_FL_ENABLED));
/*
* If we have a mixture, no need to look further.
@ -1932,10 +1932,10 @@ static int probe_remove_event_call(struct trace_event_call *call)
continue;
/*
* We can't rely on ftrace_event_enable_disable(enable => 0)
* we are going to do, FTRACE_EVENT_FL_SOFT_MODE can suppress
* we are going to do, EVENT_FILE_FL_SOFT_MODE can suppress
* TRACE_REG_UNREGISTER.
*/
if (file->flags & FTRACE_EVENT_FL_ENABLED)
if (file->flags & EVENT_FILE_FL_ENABLED)
return -EBUSY;
/*
* The do_for_each_event_file_safe() is
@ -2114,9 +2114,9 @@ event_enable_probe(unsigned long ip, unsigned long parent_ip, void **_data)
return;
if (data->enable)
clear_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &data->file->flags);
clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &data->file->flags);
else
set_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &data->file->flags);
set_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &data->file->flags);
}
static void
@ -2132,7 +2132,7 @@ event_enable_count_probe(unsigned long ip, unsigned long parent_ip, void **_data
return;
/* Skip if the event is in a state we want to switch to */
if (data->enable == !(data->file->flags & FTRACE_EVENT_FL_SOFT_DISABLED))
if (data->enable == !(data->file->flags & EVENT_FILE_FL_SOFT_DISABLED))
return;
if (data->count != -1)
@ -2793,7 +2793,7 @@ static __init void event_trace_self_tests(void)
* If an event is already enabled, someone is using
* it and the self test should not be on.
*/
if (file->flags & FTRACE_EVENT_FL_ENABLED) {
if (file->flags & EVENT_FILE_FL_ENABLED) {
pr_warn("Enabled event during self test!\n");
WARN_ON_ONCE(1);
continue;

10
kernel/trace/trace_events_filter.c
View File

@ -787,7 +787,7 @@ static void filter_disable(struct trace_event_file *file)
if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags &= ~TRACE_EVENT_FL_FILTERED;
else
file->flags &= ~FTRACE_EVENT_FL_FILTERED;
file->flags &= ~EVENT_FILE_FL_FILTERED;
}
static void __free_filter(struct event_filter *filter)
@ -1669,7 +1669,7 @@ static inline void event_set_filtered_flag(struct trace_event_file *file)
if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags |= TRACE_EVENT_FL_FILTERED;
else
file->flags |= FTRACE_EVENT_FL_FILTERED;
file->flags |= EVENT_FILE_FL_FILTERED;
}
static inline void event_set_filter(struct trace_event_file *file,
@ -1701,7 +1701,7 @@ event_set_no_set_filter_flag(struct trace_event_file *file)
if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
else
file->flags |= FTRACE_EVENT_FL_NO_SET_FILTER;
file->flags |= EVENT_FILE_FL_NO_SET_FILTER;
}
static inline void
@ -1712,7 +1712,7 @@ event_clear_no_set_filter_flag(struct trace_event_file *file)
if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
else
file->flags &= ~FTRACE_EVENT_FL_NO_SET_FILTER;
file->flags &= ~EVENT_FILE_FL_NO_SET_FILTER;
}
static inline bool
@ -1720,7 +1720,7 @@ event_no_set_filter_flag(struct trace_event_file *file)
{
struct trace_event_call *call = file->event_call;
if (file->flags & FTRACE_EVENT_FL_NO_SET_FILTER)
if (file->flags & EVENT_FILE_FL_NO_SET_FILTER)
return true;
if ((call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) &&

14
kernel/trace/trace_events_trigger.c
View File

@ -438,12 +438,12 @@ static int trace_event_trigger_enable_disable(struct trace_event_file *file,
if (trigger_enable) {
if (atomic_inc_return(&file->tm_ref) > 1)
return ret;
set_bit(FTRACE_EVENT_FL_TRIGGER_MODE_BIT, &file->flags);
set_bit(EVENT_FILE_FL_TRIGGER_MODE_BIT, &file->flags);
ret = trace_event_enable_disable(file, 1, 1);
} else {
if (atomic_dec_return(&file->tm_ref) > 0)
return ret;
clear_bit(FTRACE_EVENT_FL_TRIGGER_MODE_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_TRIGGER_MODE_BIT, &file->flags);
ret = trace_event_enable_disable(file, 0, 1);
}
@ -501,9 +501,9 @@ static void update_cond_flag(struct trace_event_file *file)
}
if (set_cond)
set_bit(FTRACE_EVENT_FL_TRIGGER_COND_BIT, &file->flags);
set_bit(EVENT_FILE_FL_TRIGGER_COND_BIT, &file->flags);
else
clear_bit(FTRACE_EVENT_FL_TRIGGER_COND_BIT, &file->flags);
clear_bit(EVENT_FILE_FL_TRIGGER_COND_BIT, &file->flags);
}
/**
@ -1063,9 +1063,9 @@ event_enable_trigger(struct event_trigger_data *data)
struct enable_trigger_data *enable_data = data->private_data;
if (enable_data->enable)
clear_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
clear_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
else
set_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
set_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &enable_data->file->flags);
}
static void
@ -1077,7 +1077,7 @@ event_enable_count_trigger(struct event_trigger_data *data)
return;
/* Skip if the event is in a state we want to switch to */
if (enable_data->enable == !(enable_data->file->flags & FTRACE_EVENT_FL_SOFT_DISABLED))
if (enable_data->enable == !(enable_data->file->flags & EVENT_FILE_FL_SOFT_DISABLED))
return;
if (data->count != -1)