Messages in this thread Patch in this message | | | From | Tom Zanussi <> | Subject | [PATCH v6 6/6] tracing: Remove redundant trigger_ops params | Date | Sun, 9 Jan 2022 18:04:10 -0600 |
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Since event_trigger_data contains the .ops trigger_ops field, there's no reason to pass the trigger_ops separately. Remove it as a param from functions whenever event_trigger_data is passed.
Signed-off-by: Tom Zanussi <zanussi@kernel.org> --- kernel/trace/trace.h | 14 +++------ kernel/trace/trace_eprobe.c | 7 ++--- kernel/trace/trace_events_hist.c | 27 +++++++---------- kernel/trace/trace_events_trigger.c | 46 +++++++++++------------------ 4 files changed, 35 insertions(+), 59 deletions(-)
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index fd2334771bdc..8072f57331dc 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -1574,10 +1574,8 @@ struct enable_trigger_data { }; extern int event_enable_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, - struct event_trigger_data *data); -extern void event_enable_trigger_free(struct event_trigger_ops *ops, struct event_trigger_data *data); +extern void event_enable_trigger_free(struct event_trigger_data *data); extern int event_enable_trigger_parse(struct event_command *cmd_ops, struct trace_event_file *file, char *glob, char *cmd, @@ -1589,8 +1587,7 @@ extern void event_enable_unregister_trigger(char *glob, struct event_trigger_data *test, struct trace_event_file *file); extern void trigger_data_free(struct event_trigger_data *data); -extern int event_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data); +extern int event_trigger_init(struct event_trigger_data *data); extern int trace_event_trigger_enable_disable(struct trace_event_file *file, int trigger_enable); extern void update_cond_flag(struct trace_event_file *file); @@ -1688,12 +1685,9 @@ struct event_trigger_ops { struct trace_buffer *buffer, void *rec, struct ring_buffer_event *rbe); - int (*init)(struct event_trigger_ops *ops, - struct event_trigger_data *data); - void (*free)(struct event_trigger_ops *ops, - struct event_trigger_data *data); + int (*init)(struct event_trigger_data *data); + void (*free)(struct event_trigger_data *data); int (*print)(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data); }; diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c index f5c8dc1a5b5f..f8270214ee96 100644 --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -513,20 +513,17 @@ __eprobe_trace_func(struct eprobe_data *edata, void *rec) * functions are just stubs to fulfill what is needed to use the trigger * infrastructure. */ -static int eprobe_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int eprobe_trigger_init(struct event_trigger_data *data) { return 0; } -static void eprobe_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void eprobe_trigger_free(struct event_trigger_data *data) { } static int eprobe_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { /* Do not print eprobe event triggers */ diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index f9f7fd9ecc3d..98e6b579b39f 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -5230,7 +5230,7 @@ static void hist_trigger_show(struct seq_file *m, seq_puts(m, "\n\n"); seq_puts(m, "# event histogram\n#\n# trigger info: "); - data->ops->print(m, data->ops, data); + data->ops->print(m, data); seq_puts(m, "#\n\n"); hist_data = data->private_data; @@ -5599,7 +5599,6 @@ static void hist_field_print(struct seq_file *m, struct hist_field *hist_field) } static int event_hist_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5707,8 +5706,7 @@ static int event_hist_trigger_print(struct seq_file *m, return 0; } -static int event_hist_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int event_hist_trigger_init(struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5736,8 +5734,7 @@ static void unregister_field_var_hists(struct hist_trigger_data *hist_data) } } -static void event_hist_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void event_hist_trigger_free(struct event_trigger_data *data) { struct hist_trigger_data *hist_data = data->private_data; @@ -5766,25 +5763,23 @@ static struct event_trigger_ops event_hist_trigger_ops = { .free = event_hist_trigger_free, }; -static int event_hist_trigger_named_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static int event_hist_trigger_named_init(struct event_trigger_data *data) { data->ref++; save_named_trigger(data->named_data->name, data); - event_hist_trigger_init(ops, data->named_data); + event_hist_trigger_init(data->named_data); return 0; } -static void event_hist_trigger_named_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +static void event_hist_trigger_named_free(struct event_trigger_data *data) { if (WARN_ON_ONCE(data->ref <= 0)) return; - event_hist_trigger_free(ops, data->named_data); + event_hist_trigger_free(data->named_data); data->ref--; if (!data->ref) { @@ -5971,7 +5966,7 @@ static int hist_register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -6089,7 +6084,7 @@ static void hist_unregister_trigger(char *glob, } if (unregistered && test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); if (hist_data->enable_timestamps) { if (!hist_data->remove || unregistered) @@ -6142,7 +6137,7 @@ static void hist_unreg_all(struct trace_event_file *file) if (hist_data->enable_timestamps) tracing_set_filter_buffering(file->tr, false); if (test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); } } } @@ -6420,7 +6415,7 @@ static void hist_enable_unreg_all(struct trace_event_file *file) update_cond_flag(file); trace_event_trigger_enable_disable(file, 0); if (test->ops->free) - test->ops->free(test->ops, test); + test->ops->free(test); } } } diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c index 2ab5837bc141..2a51db416cee 100644 --- a/kernel/trace/trace_events_trigger.c +++ b/kernel/trace/trace_events_trigger.c @@ -174,7 +174,7 @@ static int trigger_show(struct seq_file *m, void *v) } data = list_entry(v, struct event_trigger_data, list); - data->ops->print(m, data->ops, data); + data->ops->print(m, data); return 0; } @@ -418,7 +418,6 @@ event_trigger_print(const char *name, struct seq_file *m, /** * event_trigger_init - Generic event_trigger_ops @init implementation - * @ops: The trigger ops associated with the trigger * @data: Trigger-specific data * * Common implementation of event trigger initialization. @@ -428,8 +427,7 @@ event_trigger_print(const char *name, struct seq_file *m, * * Return: 0 on success, errno otherwise */ -int event_trigger_init(struct event_trigger_ops *ops, - struct event_trigger_data *data) +int event_trigger_init(struct event_trigger_data *data) { data->ref++; return 0; @@ -437,7 +435,6 @@ int event_trigger_init(struct event_trigger_ops *ops, /** * event_trigger_free - Generic event_trigger_ops @free implementation - * @ops: The trigger ops associated with the trigger * @data: Trigger-specific data * * Common implementation of event trigger de-initialization. @@ -446,8 +443,7 @@ int event_trigger_init(struct event_trigger_ops *ops, * implementations. */ static void -event_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +event_trigger_free(struct event_trigger_data *data) { if (WARN_ON_ONCE(data->ref <= 0)) return; @@ -501,7 +497,7 @@ clear_event_triggers(struct trace_array *tr) trace_event_trigger_enable_disable(file, 0); list_del_rcu(&data->list); if (data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } } } @@ -567,7 +563,7 @@ static int register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -616,7 +612,7 @@ static void unregister_trigger(char *glob, } if (unregistered && data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } /* @@ -1014,14 +1010,14 @@ event_trigger_parse(struct event_command *cmd_ops, goto out_free; /* Up the trigger_data count to make sure reg doesn't free it on failure */ - event_trigger_init(trigger_data->ops, trigger_data); + event_trigger_init(trigger_data); ret = event_trigger_register(cmd_ops, file, glob, cmd, param, trigger_data, NULL); if (ret) goto out_free; /* Down the counter of trigger_data or free it if not used anymore */ - event_trigger_free(trigger_data->ops, trigger_data); + event_trigger_free(trigger_data); out: return ret; out_free: @@ -1305,16 +1301,14 @@ traceoff_count_trigger(struct event_trigger_data *data, } static int -traceon_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +traceon_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("traceon", m, (void *)data->count, data->filter_str); } static int -traceoff_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +traceoff_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("traceoff", m, (void *)data->count, data->filter_str); @@ -1425,8 +1419,7 @@ register_snapshot_trigger(char *glob, } static int -snapshot_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +snapshot_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("snapshot", m, (void *)data->count, data->filter_str); @@ -1516,8 +1509,7 @@ stacktrace_count_trigger(struct event_trigger_data *data, } static int -stacktrace_trigger_print(struct seq_file *m, struct event_trigger_ops *ops, - struct event_trigger_data *data) +stacktrace_trigger_print(struct seq_file *m, struct event_trigger_data *data) { return event_trigger_print("stacktrace", m, (void *)data->count, data->filter_str); @@ -1607,7 +1599,6 @@ event_enable_count_trigger(struct event_trigger_data *data, } int event_enable_trigger_print(struct seq_file *m, - struct event_trigger_ops *ops, struct event_trigger_data *data) { struct enable_trigger_data *enable_data = data->private_data; @@ -1632,8 +1623,7 @@ int event_enable_trigger_print(struct seq_file *m, return 0; } -void event_enable_trigger_free(struct event_trigger_ops *ops, - struct event_trigger_data *data) +void event_enable_trigger_free(struct event_trigger_data *data) { struct enable_trigger_data *enable_data = data->private_data; @@ -1746,7 +1736,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, } /* Up the trigger_data count to make sure nothing frees it on failure */ - event_trigger_init(trigger_data->ops, trigger_data); + event_trigger_init(trigger_data); ret = event_trigger_parse_num(param, trigger_data); if (ret) @@ -1771,7 +1761,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, if (ret) goto out_disable; - event_trigger_free(trigger_data->ops, trigger_data); + event_trigger_free(trigger_data); out: return ret; out_disable: @@ -1780,7 +1770,7 @@ int event_enable_trigger_parse(struct event_command *cmd_ops, trace_event_put_ref(event_enable_file->event_call); out_free: event_trigger_reset_filter(cmd_ops, trigger_data); - event_trigger_free(trigger_data->ops, trigger_data); + event_trigger_free(trigger_data); kfree(enable_data); goto out; } @@ -1808,7 +1798,7 @@ int event_enable_register_trigger(char *glob, } if (data->ops->init) { - ret = data->ops->init(data->ops, data); + ret = data->ops->init(data); if (ret < 0) goto out; } @@ -1852,7 +1842,7 @@ void event_enable_unregister_trigger(char *glob, } if (unregistered && data->ops->free) - data->ops->free(data->ops, data); + data->ops->free(data); } static struct event_trigger_ops * -- 2.17.1
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