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tracing: Pass trace_array to set_flag callback
As options (flags) may affect instances instead of being global the set_flag() callbacks need to receive the trace_array descriptor of the instance they will be modifying. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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6d0abeca32
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@ -1427,7 +1427,8 @@ static enum print_line_t blk_tracer_print_line(struct trace_iterator *iter)
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return print_one_line(iter, true);
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}
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static int blk_tracer_set_flag(u32 old_flags, u32 bit, int set)
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static int
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blk_tracer_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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/* don't output context-info for blk_classic output */
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if (bit == TRACE_BLK_OPT_CLASSIC) {
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@ -73,7 +73,8 @@ static struct tracer_flags dummy_tracer_flags = {
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.opts = dummy_tracer_opt
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};
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static int dummy_set_flag(u32 old_flags, u32 bit, int set)
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static int
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dummy_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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return 0;
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}
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@ -3339,13 +3340,14 @@ static int tracing_trace_options_show(struct seq_file *m, void *v)
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return 0;
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}
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static int __set_tracer_option(struct tracer *trace,
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static int __set_tracer_option(struct trace_array *tr,
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struct tracer_flags *tracer_flags,
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struct tracer_opt *opts, int neg)
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{
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struct tracer *trace = tr->current_trace;
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int ret;
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ret = trace->set_flag(tracer_flags->val, opts->bit, !neg);
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ret = trace->set_flag(tr, tracer_flags->val, opts->bit, !neg);
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if (ret)
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return ret;
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@ -3357,8 +3359,9 @@ static int __set_tracer_option(struct tracer *trace,
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}
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/* Try to assign a tracer specific option */
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static int set_tracer_option(struct tracer *trace, char *cmp, int neg)
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static int set_tracer_option(struct trace_array *tr, char *cmp, int neg)
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{
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struct tracer *trace = tr->current_trace;
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struct tracer_flags *tracer_flags = trace->flags;
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struct tracer_opt *opts = NULL;
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int i;
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@ -3367,8 +3370,7 @@ static int set_tracer_option(struct tracer *trace, char *cmp, int neg)
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opts = &tracer_flags->opts[i];
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if (strcmp(cmp, opts->name) == 0)
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return __set_tracer_option(trace, trace->flags,
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opts, neg);
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return __set_tracer_option(tr, trace->flags, opts, neg);
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}
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return -EINVAL;
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@ -3440,7 +3442,7 @@ static int trace_set_options(struct trace_array *tr, char *option)
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/* If no option could be set, test the specific tracer options */
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if (!trace_options[i])
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ret = set_tracer_option(tr->current_trace, cmp, neg);
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ret = set_tracer_option(tr, cmp, neg);
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mutex_unlock(&trace_types_lock);
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@ -5689,7 +5691,7 @@ trace_options_write(struct file *filp, const char __user *ubuf, size_t cnt,
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if (!!(topt->flags->val & topt->opt->bit) != val) {
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mutex_lock(&trace_types_lock);
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ret = __set_tracer_option(topt->tr->current_trace, topt->flags,
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ret = __set_tracer_option(topt->tr, topt->flags,
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topt->opt, !val);
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mutex_unlock(&trace_types_lock);
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if (ret)
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@ -355,7 +355,8 @@ struct tracer {
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void (*print_header)(struct seq_file *m);
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enum print_line_t (*print_line)(struct trace_iterator *iter);
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/* If you handled the flag setting, return 0 */
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int (*set_flag)(u32 old_flags, u32 bit, int set);
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int (*set_flag)(struct trace_array *tr,
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u32 old_flags, u32 bit, int set);
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/* Return 0 if OK with change, else return non-zero */
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int (*flag_changed)(struct tracer *tracer,
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u32 mask, int set);
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@ -175,7 +175,8 @@ static void tracing_stop_function_trace(void)
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unregister_ftrace_function(&trace_ops);
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}
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static int func_set_flag(u32 old_flags, u32 bit, int set)
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static int
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func_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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switch (bit) {
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case TRACE_FUNC_OPT_STACK:
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@ -1476,7 +1476,8 @@ void graph_trace_close(struct trace_iterator *iter)
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}
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}
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static int func_graph_set_flag(u32 old_flags, u32 bit, int set)
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static int
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func_graph_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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if (bit == TRACE_GRAPH_PRINT_IRQS)
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ftrace_graph_skip_irqs = !set;
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@ -160,7 +160,8 @@ static struct ftrace_ops trace_ops __read_mostly =
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#endif /* CONFIG_FUNCTION_TRACER */
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#ifdef CONFIG_FUNCTION_GRAPH_TRACER
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static int irqsoff_set_flag(u32 old_flags, u32 bit, int set)
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static int
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irqsoff_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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int cpu;
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@ -266,7 +267,8 @@ __trace_function(struct trace_array *tr,
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#else
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#define __trace_function trace_function
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static int irqsoff_set_flag(u32 old_flags, u32 bit, int set)
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static int
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irqsoff_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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return -EINVAL;
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}
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@ -62,7 +62,7 @@ static void nop_trace_reset(struct trace_array *tr)
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* If you don't implement it, then the flag setting will be
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* automatically accepted.
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*/
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static int nop_set_flag(u32 old_flags, u32 bit, int set)
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static int nop_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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/*
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* Note that you don't need to update nop_flags.val yourself.
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@ -209,7 +209,8 @@ static void stop_func_tracer(int graph)
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}
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#ifdef CONFIG_FUNCTION_GRAPH_TRACER
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static int wakeup_set_flag(u32 old_flags, u32 bit, int set)
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static int
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wakeup_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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if (!(bit & TRACE_DISPLAY_GRAPH))
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@ -311,7 +312,8 @@ __trace_function(struct trace_array *tr,
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#else
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#define __trace_function trace_function
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static int wakeup_set_flag(u32 old_flags, u32 bit, int set)
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static int
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wakeup_set_flag(struct trace_array *tr, u32 old_flags, u32 bit, int set)
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{
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return -EINVAL;
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}
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