linux-kernel - RE: [RFC/PATCH 2/3] perf probe: Rename __event_package to probe_event

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Date:	Fri, 4 Sep 2015 02:11:09 +0000
From:	平松雅巳 / HIRAMATU，MASAMI 
	<masami.hiramatsu.pt@...achi.com>
To:	"'Namhyung Kim'" <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
CC:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Wang Nan <wangnan0@...wei.com>
Subject: RE: [RFC/PATCH 2/3] perf probe: Rename __event_package to
 probe_event_package

> From: Namhyung Kim [mailto:namhyung@...il.com] On Behalf Of Namhyung Kim
> 
> The struct __event_package can be accessed now from other than
> probe-event.c code.  So rename it to more specific name.
> 
> Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/perf/util/probe-event.c | 18 ++++++------------
>  tools/perf/util/probe-event.h | 10 ++++++++++
>  2 files changed, 16 insertions(+), 12 deletions(-)
> 
> diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
> index 8eaa03428d72..eef39338bb2a 100644
> --- a/tools/perf/util/probe-event.c
> +++ b/tools/perf/util/probe-event.c
> @@ -2759,20 +2759,14 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
>  	return find_probe_trace_events_from_map(pev, tevs);
>  }
> 
> -struct __event_package {
> -	struct perf_probe_event		*pev;
> -	struct probe_trace_event	*tevs;
> -	int				ntevs;
> -};
> -
> -static int __add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
> -				   struct __event_package **ppkgs)
> +int __add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
> +			    struct probe_event_package **ppkgs)

OK, since now we have probe_event_package object, this function should be
refactored as pkgs = probe_event_packages__new(pevs, npevs)(allocate, initialize)
, probe_event_packages__convert(pkgs) and probe_event_packages__apply(pkgs).

>  {
>  	int i, ret;
> -	struct __event_package *pkgs;
> +	struct probe_event_package *pkgs;
> 
>  	ret = 0;
> -	pkgs = zalloc(sizeof(struct __event_package) * npevs);
> +	pkgs = zalloc(sizeof(struct probe_event_package) * npevs);
> 
>  	if (pkgs == NULL)
>  		return -ENOMEM;
> @@ -2813,7 +2807,7 @@ static int __add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
>  	return 0;
>  }
> 
> -static void cleanup_perf_probe_events(struct __event_package *pkgs, int npevs)
> +void cleanup_perf_probe_events(struct probe_event_package *pkgs, int npevs)

This also should be perf_event_pacakges__delete() :)

Thanks!

>  {
>  	int i, j;
> 
> @@ -2833,7 +2827,7 @@ static void cleanup_perf_probe_events(struct __event_package *pkgs, int npevs)
>  int add_perf_probe_events(struct perf_probe_event *pevs, int npevs)
>  {
>  	int ret;
> -	struct __event_package *pkgs = NULL;
> +	struct probe_event_package *pkgs = NULL;
> 
>  	ret = __add_perf_probe_events(pevs, npevs, &pkgs);
>  	cleanup_perf_probe_events(pkgs, npevs);
> diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
> index 6e7ec68a4aa8..73f922fa7cac 100644
> --- a/tools/perf/util/probe-event.h
> +++ b/tools/perf/util/probe-event.h
> @@ -89,6 +89,12 @@ struct perf_probe_event {
>  	struct perf_probe_arg	*args;	/* Arguments */
>  };
> 
> +struct probe_event_package {
> +	struct perf_probe_event		*pev;
> +	struct probe_trace_event	*tevs;
> +	int				ntevs;
> +};
> +
>  /* Line range */
>  struct line_range {
>  	char			*file;		/* File name */
> @@ -138,6 +144,10 @@ extern void line_range__clear(struct line_range *lr);
>  extern int line_range__init(struct line_range *lr);
> 
>  extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
> +extern int __add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
> +				   struct probe_event_package **ppkgs);
> +extern void cleanup_perf_probe_events(struct probe_event_package *pkgs,
> +				      int npevs);
>  extern int del_perf_probe_events(struct strfilter *filter);
>  extern int show_perf_probe_events(struct strfilter *filter);
>  extern int show_line_range(struct line_range *lr, const char *module,
> --
> 2.5.0