Commit-ID: 62eea464380633b88902da35bf9cbd8515289703 Gitweb: http://git.kernel.org/tip/62eea464380633b88902da35bf9cbd8515289703 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Fri, 26 Jun 2015 11:29:06 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Fri, 26 Jun 2015 11:03:41 -0300
perf thread_map: Introduce thread_map__reset function We need to reset newly allocated 'struct thread_map_data' entries, because we will introduce new comm memeber, which will get set later or not at all. Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-2-git-send-email-jo...@kernel.org [ Use sizeof(map->map[0]) to be independent of the array entry type ] Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/thread_map.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c index 368cc58..ed76c17 100644 --- a/tools/perf/util/thread_map.c +++ b/tools/perf/util/thread_map.c @@ -21,11 +21,26 @@ static int filter(const struct dirent *dir) return 1; } +static void thread_map__reset(struct thread_map *map, int start, int nr) +{ + size_t size = (nr - start) * sizeof(map->map[0]); + + memset(&map->map[start], 0, size); +} + static struct thread_map *thread_map__realloc(struct thread_map *map, int nr) { size_t size = sizeof(*map) + sizeof(map->map[0]) * nr; + int start = map ? map->nr : 0; - return realloc(map, size); + map = realloc(map, size); + /* + * We only realloc to add more items, let's reset new items. + */ + if (map) + thread_map__reset(map, start, nr); + + return map; } #define thread_map__alloc(__nr) thread_map__realloc(NULL, __nr) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
