[tip:perf/core] perf target: Move the checking of which map function to call into function.

From: tip-bot for Dongsheng Yang
Date: Tue Dec 10 2013 - 04:34:48 EST


Commit-ID: 9c105fbc94a67ea5943d309d9a78ca669e0ddc61
Gitweb: http://git.kernel.org/tip/9c105fbc94a67ea5943d309d9a78ca669e0ddc61
Author: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
AuthorDate: Wed, 4 Dec 2013 17:56:40 -0500
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 4 Dec 2013 13:46:37 -0300

perf target: Move the checking of which map function to call into function.

Check for cpu_map__dummy_new() or cpu_map__new() to be called in
perf_evlist__create_maps() is more complicated.

This patch moves the checking work into target.h, combining two
conditions and making perf_evlist__create_maps() more readable.

Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/b8c41f1fd2c4f0df71eb7b19aea74fb64d46cdda.1386197481.git.yangds.fnst@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/evlist.c | 8 +-------
tools/perf/util/target.h | 13 +++++++++++++
2 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 76fa764..7bb6ee1 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -819,13 +819,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->threads == NULL)
return -1;

- if (target->default_per_cpu)
- evlist->cpus = target->per_thread ?
- cpu_map__dummy_new() :
- cpu_map__new(target->cpu_list);
- else if (target__has_task(target))
- evlist->cpus = cpu_map__dummy_new();
- else if (!target__has_cpu(target) && !target->uses_mmap)
+ if (target__uses_dummy_map(target))
evlist->cpus = cpu_map__dummy_new();
else
evlist->cpus = cpu_map__new(target->cpu_list);
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index 31dd2e9..7381b1c 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -63,4 +63,17 @@ static inline bool target__none(struct target *target)
return !target__has_task(target) && !target__has_cpu(target);
}

+static inline bool target__uses_dummy_map(struct target *target)
+{
+ bool use_dummy = false;
+
+ if (target->default_per_cpu)
+ use_dummy = target->per_thread ? true : false;
+ else if (target__has_task(target) ||
+ (!target__has_cpu(target) && !target->uses_mmap))
+ use_dummy = true;
+
+ return use_dummy;
+}
+
#endif /* _PERF_TARGET_H */
--
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