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Message-ID: <20150826144211.GF18596@kernel.org>
Date: Wed, 26 Aug 2015 11:42:11 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Jiri Olsa <jolsa@...nel.org>
Cc: lkml <linux-kernel@...r.kernel.org>,
David Ahern <dsahern@...il.com>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Matt Fleming <matt@...eblueprint.co.uk>,
Raphaël Beamonte <raphael.beamonte@...il.com>
Subject: Re: [PATCH 05/11] perf tools: Move tracing_path stuff under same
namespace
Em Wed, Aug 26, 2015 at 03:46:47PM +0200, Jiri Olsa escreveu:
> Renaming all functions touching tracing_path under same
> namespace. New interface is:
But we were trying to have debugfs stuff in tools/lib/api/fs/, so that
it could eventually be used by some other tools, etc, and now we're
going the other way around, de-librarifying, not good :-\
- Arnaldo
> char tracing_path[];
> char tracing_events_path[];
> - tracing mount
>
> void perf_tracing_path_set(const char *mountpoint);
> - setting directly tracing_path(_events), used by --debugfs-dir option
>
> const char *perf_tracing_path_mount(const char *mountpoint);
> - initial setup of tracing_path(_events), called from perf.c
>
> int tracing_path_strerror_open(int err, char *buf, size_t size, const char *filename);
> int tracing_path_strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
> - strerror functions to get error string when failing to open
> tracepoint files
>
> char *get_tracing_file(const char *name);
> void put_tracing_file(char *file);
> - get/put tracing file path
>
> Link: http://lkml.kernel.org/n/tip-miy6kftxxryjf40b3qb6eknc@git.kernel.org
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---
> tools/perf/builtin-trace.c | 4 ++--
> tools/perf/perf.c | 8 ++++----
> tools/perf/util/util.c | 26 +++++++++++++-------------
> tools/perf/util/util.h | 8 ++++----
> 4 files changed, 23 insertions(+), 23 deletions(-)
>
> diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> index 2f1162daa3c5..384ebe32698a 100644
> --- a/tools/perf/builtin-trace.c
> +++ b/tools/perf/builtin-trace.c
> @@ -2667,11 +2667,11 @@ out_delete_evlist:
> char errbuf[BUFSIZ];
>
> out_error_sched_stat_runtime:
> - debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
> + tracing_path_strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime");
> goto out_error;
>
> out_error_raw_syscalls:
> - debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
> + tracing_path_strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)");
> goto out_error;
>
> out_error_mmap:
> diff --git a/tools/perf/perf.c b/tools/perf/perf.c
> index 07dbff5c0e60..c5acdadde347 100644
> --- a/tools/perf/perf.c
> +++ b/tools/perf/perf.c
> @@ -214,7 +214,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
> fprintf(stderr, "No directory given for --debugfs-dir.\n");
> usage(perf_usage_string);
> }
> - perf_debugfs_set_path((*argv)[1]);
> + perf_tracing_path_set((*argv)[1]);
> if (envchanged)
> *envchanged = 1;
> (*argv)++;
> @@ -230,7 +230,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
> (*argv)++;
> (*argc)--;
> } else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) {
> - perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR));
> + perf_tracing_path_set(cmd + strlen(CMD_DEBUGFS_DIR));
> fprintf(stderr, "dir: %s\n", tracing_path);
> if (envchanged)
> *envchanged = 1;
> @@ -517,8 +517,8 @@ int main(int argc, const char **argv)
> cmd = perf_extract_argv0_path(argv[0]);
> if (!cmd)
> cmd = "perf-help";
> - /* get debugfs mount point from /proc/mounts */
> - perf_debugfs_mount(NULL);
> + /* get debugfs/tracefs mount point from /proc/mounts */
> + perf_tracing_path_mount(NULL);
> /*
> * "perf-xxxx" is the same as "perf xxxx", but we obviously:
> *
> diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
> index 03d1d74a5ede..675d112a887d 100644
> --- a/tools/perf/util/util.c
> +++ b/tools/perf/util/util.c
> @@ -390,7 +390,7 @@ void set_term_quiet_input(struct termios *old)
> tcsetattr(0, TCSANOW, &tc);
> }
>
> -static void set_tracing_events_path(const char *tracing, const char *mountpoint)
> +static void tracing_path_set(const char *tracing, const char *mountpoint)
> {
> snprintf(tracing_path, sizeof(tracing_path), "%s/%s",
> mountpoint, tracing);
> @@ -398,7 +398,7 @@ static void set_tracing_events_path(const char *tracing, const char *mountpoint)
> mountpoint, tracing, "events");
> }
>
> -static const char *__perf_tracefs_mount(const char *mountpoint)
> +static const char *tracing_path_tracefs_mount(const char *mountpoint)
> {
> const char *mnt;
>
> @@ -406,12 +406,12 @@ static const char *__perf_tracefs_mount(const char *mountpoint)
> if (!mnt)
> return NULL;
>
> - set_tracing_events_path("", mnt);
> + tracing_path_set("", mnt);
>
> return mnt;
> }
>
> -static const char *__perf_debugfs_mount(const char *mountpoint)
> +static const char *tracing_path_debugfs_mount(const char *mountpoint)
> {
> const char *mnt;
>
> @@ -419,30 +419,30 @@ static const char *__perf_debugfs_mount(const char *mountpoint)
> if (!mnt)
> return NULL;
>
> - set_tracing_events_path("tracing/", mnt);
> + tracing_path_set("tracing/", mnt);
>
> return mnt;
> }
>
> -const char *perf_debugfs_mount(const char *mountpoint)
> +const char *perf_tracing_path_mount(const char *mountpoint)
> {
> const char *mnt;
>
> - mnt = __perf_tracefs_mount(mountpoint);
> + mnt = tracing_path_tracefs_mount(mountpoint);
> if (mnt)
> return mnt;
>
> - mnt = __perf_debugfs_mount(mountpoint);
> + mnt = tracing_path_debugfs_mount(mountpoint);
>
> return mnt;
> }
>
> -void perf_debugfs_set_path(const char *mntpt)
> +void perf_tracing_path_set(const char *mntpt)
> {
> - set_tracing_events_path("tracing/", mntpt);
> + tracing_path_set("tracing/", mntpt);
> }
>
> -int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename)
> +int tracing_path_strerror_open(int err, char *buf, size_t size, const char *filename)
> {
> char sbuf[128];
>
> @@ -485,13 +485,13 @@ int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename
> return 0;
> }
>
> -int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name)
> +int tracing_path_strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name)
> {
> char path[PATH_MAX];
>
> snprintf(path, PATH_MAX, "tracing/events/%s/%s", sys, name ?: "*");
>
> - return debugfs__strerror_open(err, buf, size, path);
> + return tracing_path_strerror_open(err, buf, size, path);
> }
>
> char *get_tracing_file(const char *name)
> diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
> index da48c00ab0db..34a68faf53fe 100644
> --- a/tools/perf/util/util.h
> +++ b/tools/perf/util/util.h
> @@ -85,10 +85,10 @@ extern const char *graph_dotted_line;
> extern char buildid_dir[];
> extern char tracing_path[];
> extern char tracing_events_path[];
> -extern void perf_debugfs_set_path(const char *mountpoint);
> -const char *perf_debugfs_mount(const char *mountpoint);
> -int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename);
> -int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
> +extern void perf_tracing_path_set(const char *mountpoint);
> +const char *perf_tracing_path_mount(const char *mountpoint);
> +int tracing_path_strerror_open(int err, char *buf, size_t size, const char *filename);
> +int tracing_path_strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name);
> char *get_tracing_file(const char *name);
> void put_tracing_file(char *file);
>
> --
> 2.4.3
--
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