linux-kernel - [tip:perf/core] perf evlist: Simplify propagate

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Date:	Wed, 16 Sep 2015 00:30:59 -0700
From:	tip-bot for Adrian Hunter <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	adrian.hunter@...el.com, jolsa@...nel.org, tglx@...utronix.de,
	acme@...hat.com, kan.liang@...el.com, hpa@...or.com,
	mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:perf/core] perf evlist: Simplify propagate_maps() logic

Commit-ID:  a69b09e2342a9c144b0291b9aeb849ab7d5843bf
Gitweb:     http://git.kernel.org/tip/a69b09e2342a9c144b0291b9aeb849ab7d5843bf
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Tue, 8 Sep 2015 10:58:49 +0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 15 Sep 2015 10:08:22 -0300

perf evlist: Simplify propagate_maps() logic

If evsel->cpus is to be reassigned then the current value must be "put",
which works even if it is NULL.  Simplify the current logic by moving
the "put" next to the assignment.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Acked-by: Jiri Olsa <jolsa@...nel.org>
Cc: Kan Liang <kan.liang@...el.com>
Link: http://lkml.kernel.org/r/1441699142-18905-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/evlist.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d51a520..95e07ea 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1113,11 +1113,10 @@ static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
 		 * We already have cpus for evsel (via PMU sysfs) so
 		 * keep it, if there's no target cpu list defined.
 		 */
-		if (evsel->cpus && has_user_cpus)
+		if (!evsel->cpus || has_user_cpus) {
 			cpu_map__put(evsel->cpus);
-
-		if (!evsel->cpus || has_user_cpus)
 			evsel->cpus = cpu_map__get(evlist->cpus);
+		}
 
 		evsel->threads = thread_map__get(evlist->threads);
 
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