linux-kernel - [PATCH V8 20/23] perf tools: making function set_max_cpu

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Date:	Thu, 14 Jan 2016 14:46:14 -0700
From:	Mathieu Poirier <mathieu.poirier@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	linux-doc@...r.kernel.org, zhang.chunyan@...aro.org,
	mike.leach@....com, tor@...com, al.grant@....com, rabin@....in,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Subject: [PATCH V8 20/23] perf tools: making function set_max_cpu_num() non static

For memory allocation purposes, code located in other places
then util/cpumap.c may want to know how many CPUs the system has.

This patch is making function set_max_cpu_num() available to
other parts of the perf tool so that global variable
'max_cpu_num' gets the right value when referenced by cpu__max_cpu().

Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 tools/perf/util/cpumap.c | 2 +-
 tools/perf/util/cpumap.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 10af1e7524fb..ae179320c0c0 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -380,7 +380,7 @@ out:
 }
 
 /* Determine highest possible cpu in the system for sparse allocation */
-static void set_max_cpu_num(void)
+void set_max_cpu_num(void)
 {
 	const char *mnt;
 	char path[PATH_MAX];
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 85f7772457fa..45fa963345eb 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -14,6 +14,7 @@ struct cpu_map {
 	int map[];
 };
 
+void set_max_cpu_num(void);
 struct cpu_map *cpu_map__new(const char *cpu_list);
 struct cpu_map *cpu_map__empty_new(int nr);
 struct cpu_map *cpu_map__dummy_new(void);
-- 
2.1.4