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Commit 42548008 authored by Steven Rostedt's avatar Steven Rostedt
Browse files

tracing: add handler to trace_stat 



Currently, if a trace_stat user wants a handle to some private data,
the trace_stat infrastructure does not supply a way to do that.

This patch passes the trace_stat structure to the start function of
the trace_stat code.

Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
parent ee000b7f

kernel/trace/trace_branch.c

+2 −2
Original line number Diff line number Diff line
@@ -263,7 +263,7 @@ static int branch_stat_show(struct seq_file *m, void *v) 
	return 0;

}



static void *annotated_branch_stat_start(void)

static void *annotated_branch_stat_start(struct tracer_stat *trace)

{

	return __start_annotated_branch_profile;

}
@@ -338,7 +338,7 @@ static int all_branch_stat_headers(struct seq_file *m) 
	return 0;

}



static void *all_branch_stat_start(void)

static void *all_branch_stat_start(struct tracer_stat *trace)

{

	return __start_branch_profile;

}

kernel/trace/trace_stat.c

+1 −1
Original line number Diff line number Diff line
@@ -85,7 +85,7 @@ static int stat_seq_init(struct tracer_stat_session *session) 
	if (!ts->stat_cmp)

		ts->stat_cmp = dummy_cmp;



	stat = ts->stat_start();

	stat = ts->stat_start(ts);

	if (!stat)

		goto exit;

kernel/trace/trace_stat.h

+1 −1
Original line number Diff line number Diff line
@@ -12,7 +12,7 @@ struct tracer_stat { 
	/* The name of your stat file */

	const char		*name;

	/* Iteration over statistic entries */

	void			*(*stat_start)(void);

	void			*(*stat_start)(struct tracer_stat *trace);

	void			*(*stat_next)(void *prev, int idx);

	/* Compare two entries for stats sorting */

	int			(*stat_cmp)(void *p1, void *p2);

kernel/trace/trace_workqueue.c

+1 −1
Original line number Diff line number Diff line
@@ -152,7 +152,7 @@ static struct cpu_workqueue_stats *workqueue_stat_start_cpu(int cpu) 
	return ret;

}



static void *workqueue_stat_start(void)

static void *workqueue_stat_start(struct tracer_stat *trace)

{

	int cpu;

	void *ret = NULL;