tracing: Make event trigger functions available
Make various event trigger utility functions available outside of trace_events_trigger.c so that new triggers can be defined outside of that file. Link: http://lkml.kernel.org/r/4a40c1695dd43cac6cd475d72e13ffe30ba84bff.1449767187.git.tom.zanussi@linux.intel.com Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com> Tested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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@ -1175,6 +1175,20 @@ struct event_trigger_data {
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struct list_head list;
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};
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extern void trigger_data_free(struct event_trigger_data *data);
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extern int event_trigger_init(struct event_trigger_ops *ops,
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struct event_trigger_data *data);
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extern int trace_event_trigger_enable_disable(struct trace_event_file *file,
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int trigger_enable);
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extern void update_cond_flag(struct trace_event_file *file);
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extern void unregister_trigger(char *glob, struct event_trigger_ops *ops,
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struct event_trigger_data *test,
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struct trace_event_file *file);
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extern int set_trigger_filter(char *filter_str,
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struct event_trigger_data *trigger_data,
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struct trace_event_file *file);
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extern int register_event_command(struct event_command *cmd);
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/**
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* struct event_trigger_ops - callbacks for trace event triggers
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*
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@ -28,8 +28,7 @@
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static LIST_HEAD(trigger_commands);
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static DEFINE_MUTEX(trigger_cmd_mutex);
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static void
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trigger_data_free(struct event_trigger_data *data)
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void trigger_data_free(struct event_trigger_data *data)
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{
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if (data->cmd_ops->set_filter)
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data->cmd_ops->set_filter(NULL, data, NULL);
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@ -306,7 +305,7 @@ const struct file_operations event_trigger_fops = {
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* Currently we only register event commands from __init, so mark this
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* __init too.
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*/
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static __init int register_event_command(struct event_command *cmd)
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__init int register_event_command(struct event_command *cmd)
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{
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struct event_command *p;
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int ret = 0;
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@ -395,9 +394,8 @@ event_trigger_print(const char *name, struct seq_file *m,
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*
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* Return: 0 on success, errno otherwise
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*/
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static int
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event_trigger_init(struct event_trigger_ops *ops,
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struct event_trigger_data *data)
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int event_trigger_init(struct event_trigger_ops *ops,
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struct event_trigger_data *data)
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{
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data->ref++;
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return 0;
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@ -425,8 +423,8 @@ event_trigger_free(struct event_trigger_ops *ops,
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trigger_data_free(data);
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}
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static int trace_event_trigger_enable_disable(struct trace_event_file *file,
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int trigger_enable)
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int trace_event_trigger_enable_disable(struct trace_event_file *file,
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int trigger_enable)
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{
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int ret = 0;
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@ -483,7 +481,7 @@ clear_event_triggers(struct trace_array *tr)
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* its TRIGGER_COND bit set, otherwise the TRIGGER_COND bit should be
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* cleared.
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*/
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static void update_cond_flag(struct trace_event_file *file)
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void update_cond_flag(struct trace_event_file *file)
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{
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struct event_trigger_data *data;
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bool set_cond = false;
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@ -560,9 +558,9 @@ out:
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* Usually used directly as the @unreg method in event command
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* implementations.
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*/
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static void unregister_trigger(char *glob, struct event_trigger_ops *ops,
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struct event_trigger_data *test,
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struct trace_event_file *file)
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void unregister_trigger(char *glob, struct event_trigger_ops *ops,
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struct event_trigger_data *test,
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struct trace_event_file *file)
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{
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struct event_trigger_data *data;
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bool unregistered = false;
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@ -696,9 +694,9 @@ event_trigger_callback(struct event_command *cmd_ops,
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*
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* Return: 0 on success, errno otherwise
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*/
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static int set_trigger_filter(char *filter_str,
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struct event_trigger_data *trigger_data,
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struct trace_event_file *file)
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int set_trigger_filter(char *filter_str,
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struct event_trigger_data *trigger_data,
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struct trace_event_file *file)
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{
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struct event_trigger_data *data = trigger_data;
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struct event_filter *filter = NULL, *tmp;
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