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perf cpumap: Factor out functions to get core_id and socket_id

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This patch moves the code which reads core_id and socket_id into
separate functions.

Signed-off-by: Kan Liang <kan.liang@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1441115893-22006-1-git-send-email-kan.liang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2015-09-01 09:58:11 -04:00 committed by Arnaldo Carvalho de Melo
parent 76055940c1
commit 193b6bd339
2 changed files with 35 additions and 18 deletions
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51
tools/perf/util/cpumap.c
View File

@ -225,17 +225,12 @@ void cpu_map__put(struct cpu_map *map)
cpu_map__delete(map);
}
int cpu_map__get_socket(struct cpu_map *map, int idx)
int cpu_map__get_socket_id(int cpu)
{
FILE *fp;
const char *mnt;
char path[PATH_MAX];
int cpu, ret;
if (idx > map->nr)
return -1;
cpu = map->map[idx];
int socket_id, ret;
mnt = sysfs__mountpoint();
if (!mnt)
@ -248,9 +243,22 @@ int cpu_map__get_socket(struct cpu_map *map, int idx)
fp = fopen(path, "r");
if (!fp)
return -1;
ret = fscanf(fp, "%d", &cpu);
ret = fscanf(fp, "%d", &socket_id);
fclose(fp);
return ret == 1 ? cpu : -1;
return ret == 1 ? socket_id : -1;
}
int cpu_map__get_socket(struct cpu_map *map, int idx)
{
int cpu;
if (idx > map->nr)
return -1;
cpu = map->map[idx];
return cpu_map__get_socket_id(cpu);
}
static int cmp_ids(const void *a, const void *b)
@ -289,17 +297,12 @@ static int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
return 0;
}
int cpu_map__get_core(struct cpu_map *map, int idx)
int cpu_map__get_core_id(int cpu)
{
FILE *fp;
const char *mnt;
char path[PATH_MAX];
int cpu, ret, s;
if (idx > map->nr)
return -1;
cpu = map->map[idx];
int core_id, ret;
mnt = sysfs__mountpoint();
if (!mnt)
@ -312,11 +315,23 @@ int cpu_map__get_core(struct cpu_map *map, int idx)
fp = fopen(path, "r");
if (!fp)
return -1;
ret = fscanf(fp, "%d", &cpu);
ret = fscanf(fp, "%d", &core_id);
fclose(fp);
if (ret != 1)
return ret == 1 ? core_id : -1;
}
int cpu_map__get_core(struct cpu_map *map, int idx)
{
int cpu, s;
if (idx > map->nr)
return -1;
cpu = map->map[idx];
cpu = cpu_map__get_core_id(cpu);
s = cpu_map__get_socket(map, idx);
if (s == -1)
return -1;

2
tools/perf/util/cpumap.h
View File

@ -18,7 +18,9 @@ struct cpu_map *cpu_map__new(const char *cpu_list);
struct cpu_map *cpu_map__dummy_new(void);
struct cpu_map *cpu_map__read(FILE *file);
size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
int cpu_map__get_socket_id(int cpu);
int cpu_map__get_socket(struct cpu_map *map, int idx);
int cpu_map__get_core_id(int cpu);
int cpu_map__get_core(struct cpu_map *map, int idx);
int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);