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Subject[PATCH 1/6] perf target: Rename functions to avoid double negation
Date
From: Namhyung Kim <namhyung.kim@lge.com>

Rename perf_target__no_{cpu,task} to perf_target__has_{cpu,task} because
it's more intuitive and easy to parse (for human beings) when used with
negation.
The names are came out from David Ahern. It is intended to be a
mechanical substitution without any functional change.

The perf_target__none remains unchanged since I couldn't find a right
name and it is hardly used with negation.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Suggested-by: David Ahern <dsahern@gmail.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337161549-9870-1-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 14 +++++++-------
tools/perf/builtin-top.c | 2 +-
tools/perf/util/evlist.c | 2 +-
tools/perf/util/evsel.c | 2 +-
tools/perf/util/target.h | 10 +++++-----
5 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d060568..0f4b51a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -292,10 +292,10 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,

attr->inherit = !no_inherit;

- if (!perf_target__no_cpu(&target))
+ if (perf_target__has_cpu(&target))
return perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
group, group_fd);
- if (perf_target__no_task(&target) && (!group || evsel == first)) {
+ if (!perf_target__has_task(&target) && (!group || evsel == first)) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
@@ -972,7 +972,7 @@ static void print_stat(int argc, const char **argv)
if (!csv_output) {
fprintf(output, "\n");
fprintf(output, " Performance counter stats for ");
- if (perf_target__no_task(&target)) {
+ if (!perf_target__has_task(&target)) {
fprintf(output, "\'%s", argv[0]);
for (i = 1; i < argc; i++)
fprintf(output, " %s", argv[i]);
@@ -1194,13 +1194,13 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
} else if (big_num_opt == 0) /* User passed --no-big-num */
big_num = false;

- if (!argc && perf_target__no_task(&target))
+ if (!argc && !perf_target__has_task(&target))
usage_with_options(stat_usage, options);
if (run_count <= 0)
usage_with_options(stat_usage, options);

/* no_aggr, cgroup are for system-wide only */
- if ((no_aggr || nr_cgroups) && perf_target__no_cpu(&target)) {
+ if ((no_aggr || nr_cgroups) && !perf_target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");

@@ -1213,9 +1213,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
perf_target__validate(&target);

if (perf_evlist__create_maps(evsel_list, &target) < 0) {
- if (!perf_target__no_task(&target))
+ if (perf_target__has_task(&target))
pr_err("Problems finding threads of monitor\n");
- if (!perf_target__no_cpu(&target))
+ if (perf_target__has_cpu(&target))
perror("failed to parse CPUs map");

usage_with_options(stat_usage, options);
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 4eb6171..553560a 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1020,7 +1020,7 @@ static int __cmd_top(struct perf_top *top)
if (ret)
goto out_delete;

- if (!perf_target__no_task(&top->target))
+ if (perf_target__has_task(&top->target))
perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
perf_event__process,
&top->session->host_machine);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 1201daf..80bef28 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -609,7 +609,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist,
if (evlist->threads == NULL)
return -1;

- if (!perf_target__no_cpu(target))
+ if (perf_target__has_cpu(target))
evlist->cpus = cpu_map__new(target->cpu_list);
else
evlist->cpus = cpu_map__dummy_new();
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 21eaab2..d7a2b4b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -115,7 +115,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,

if (!opts->sample_id_all_missing &&
(opts->sample_time || !opts->no_inherit ||
- !perf_target__no_cpu(&opts->target)))
+ perf_target__has_cpu(&opts->target)))
attr->sample_type |= PERF_SAMPLE_TIME;

if (opts->raw_samples) {
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index 127cff3..c43f632 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -46,19 +46,19 @@ enum perf_target_errno perf_target__parse_uid(struct perf_target *target);
int perf_target__strerror(struct perf_target *target, int errnum, char *buf,
size_t buflen);

-static inline bool perf_target__no_task(struct perf_target *target)
+static inline bool perf_target__has_task(struct perf_target *target)
{
- return !target->pid && !target->tid && !target->uid_str;
+ return target->tid || target->pid || target->uid_str;
}

-static inline bool perf_target__no_cpu(struct perf_target *target)
+static inline bool perf_target__has_cpu(struct perf_target *target)
{
- return !target->system_wide && !target->cpu_list;
+ return target->system_wide || target->cpu_list;
}

static inline bool perf_target__none(struct perf_target *target)
{
- return perf_target__no_task(target) && perf_target__no_cpu(target);
+ return !perf_target__has_task(target) && !perf_target__has_cpu(target);
}

#endif /* _PERF_TARGET_H */
--
1.7.9.2.358.g22243


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