Commit-ID: 5cedb413a63d452356aa634e0d4ffcc24f7dbcb5 Gitweb: https://git.kernel.org/tip/5cedb413a63d452356aa634e0d4ffcc24f7dbcb5 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Wed, 7 Mar 2018 16:50:07 +0100 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 8 Mar 2018 11:30:45 -0300
perf c2c: Use mem_info refcnt logic Switch to refcnt logic instead of duplicating mem_info objects. No functional change, just saving some memory. Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: Alexander Shishkin <alexander.shish...@linux.intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/20180307155020.32613-7-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-c2c.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c index 539c3d460158..98d243fa0c06 100644 --- a/tools/perf/builtin-c2c.c +++ b/tools/perf/builtin-c2c.c @@ -237,9 +237,12 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, if (mi == NULL) return -ENOMEM; - mi_dup = memdup(mi, sizeof(*mi)); - if (!mi_dup) - goto free_mi; + /* + * The mi object is released in hists__add_entry_ops, + * if it gets sorted out into existing data, so we need + * to take the copy now. + */ + mi_dup = mem_info__get(mi); c2c_decode_stats(&stats, mi); @@ -247,7 +250,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, &al, NULL, NULL, mi, sample, true); if (he == NULL) - goto free_mi_dup; + goto free_mi; c2c_he = container_of(he, struct c2c_hist_entry, he); c2c_add_stats(&c2c_he->stats, &stats); @@ -272,19 +275,15 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, mi = mi_dup; - mi_dup = memdup(mi, sizeof(*mi)); - if (!mi_dup) - goto free_mi; - c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2); if (!c2c_hists) - goto free_mi_dup; + goto free_mi; he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops, &al, NULL, NULL, mi, sample, true); if (he == NULL) - goto free_mi_dup; + goto free_mi; c2c_he = container_of(he, struct c2c_hist_entry, he); c2c_add_stats(&c2c_he->stats, &stats); @@ -303,10 +302,9 @@ out: addr_location__put(&al); return ret; -free_mi_dup: - free(mi_dup); free_mi: - free(mi); + mem_info__put(mi_dup); + mem_info__put(mi); ret = -ENOMEM; goto out; }
