diff options
Diffstat (limited to 'tools/perf/lib')
| -rw-r--r-- | tools/perf/lib/cpumap.c | 24 | ||||
| -rw-r--r-- | tools/perf/lib/include/perf/cpumap.h | 2 | ||||
| -rw-r--r-- | tools/perf/lib/libperf.map | 2 |
3 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/lib/cpumap.c b/tools/perf/lib/cpumap.c index 80d587ab95aa..f3cfb4c71106 100644 --- a/tools/perf/lib/cpumap.c +++ b/tools/perf/lib/cpumap.c @@ -3,6 +3,8 @@ #include <stdlib.h> #include <linux/refcount.h> #include <internal/cpumap.h> +#include <asm/bug.h> +#include <stdio.h> struct perf_cpu_map *perf_cpu_map__dummy_new(void) { @@ -16,3 +18,25 @@ struct perf_cpu_map *perf_cpu_map__dummy_new(void) return cpus; } + +static void cpu_map__delete(struct perf_cpu_map *map) +{ + if (map) { + WARN_ONCE(refcount_read(&map->refcnt) != 0, + "cpu_map refcnt unbalanced\n"); + free(map); + } +} + +struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map) +{ + if (map) + refcount_inc(&map->refcnt); + return map; +} + +void perf_cpu_map__put(struct perf_cpu_map *map) +{ + if (map && refcount_dec_and_test(&map->refcnt)) + cpu_map__delete(map); +} diff --git a/tools/perf/lib/include/perf/cpumap.h b/tools/perf/lib/include/perf/cpumap.h index fa1e5aa9d662..e16c2515a499 100644 --- a/tools/perf/lib/include/perf/cpumap.h +++ b/tools/perf/lib/include/perf/cpumap.h @@ -7,5 +7,7 @@ struct perf_cpu_map; LIBPERF_API struct perf_cpu_map *perf_cpu_map__dummy_new(void); +LIBPERF_API struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map); +LIBPERF_API void perf_cpu_map__put(struct perf_cpu_map *map); #endif /* __LIBPERF_CPUMAP_H */ diff --git a/tools/perf/lib/libperf.map b/tools/perf/lib/libperf.map index 65201c6cbe7e..76ce3bc59dd8 100644 --- a/tools/perf/lib/libperf.map +++ b/tools/perf/lib/libperf.map @@ -2,6 +2,8 @@ LIBPERF_0.0.1 { global: libperf_set_print; perf_cpu_map__dummy_new; + perf_cpu_map__get; + perf_cpu_map__put; local: *; }; |