1 files changed, 15 insertions, 7 deletions

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index adc72f09914d..2b32ffa9ebdb 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -38,24 +38,19 @@ static struct cpu_map *cpu_map__trim_new(int nr_cpus, int *tmp_cpus)
         return cpus;
 }
 
-static struct cpu_map *cpu_map__read_all_cpu_map(void)
+struct cpu_map *cpu_map__read(FILE *file)
 {
         struct cpu_map *cpus = NULL;
-        FILE *onlnf;
         int nr_cpus = 0;
         int *tmp_cpus = NULL, *tmp;
         int max_entries = 0;
         int n, cpu, prev;
         char sep;
 
-        onlnf = fopen("/sys/devices/system/cpu/online", "r");
-        if (!onlnf)
-                return cpu_map__default_new();
-
         sep = 0;
         prev = -1;
         for (;;) {
-                n = fscanf(onlnf, "%u%c", &cpu, &sep);
+                n = fscanf(file, "%u%c", &cpu, &sep);
                 if (n <= 0)
                         break;
                 if (prev >= 0) {
@@ -95,6 +90,19 @@ static struct cpu_map *cpu_map__read_all_cpu_map(void)
                 cpus = cpu_map__default_new();
 out_free_tmp:
         free(tmp_cpus);
+        return cpus;
+}
+
+static struct cpu_map *cpu_map__read_all_cpu_map(void)
+{
+        struct cpu_map *cpus = NULL;
+        FILE *onlnf;
+
+        onlnf = fopen("/sys/devices/system/cpu/online", "r");
+        if (!onlnf)
+                return cpu_map__default_new();
+
+        cpus = cpu_map__read(onlnf);
         fclose(onlnf);
         return cpus;
 }