diff options
| author |   Jiri Olsa <jolsa@kernel.org> | 2018-03-07 16:50:07 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-03-08 11:30:45 -0300 |
| commit | 5cedb413a63d452356aa634e0d4ffcc24f7dbcb5 (patch) | |
| tree | 6ea4da7e5704bc00ab26f0c8aa48937392aee061 /tools/perf/builtin-c2c.c | |
| parent | perf tools: Add refcnt into struct mem_info (diff) | |
| download | wireguard-linux-5cedb413a63d452356aa634e0d4ffcc24f7dbcb5.tar.xz wireguard-linux-5cedb413a63d452356aa634e0d4ffcc24f7dbcb5.zip | |
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 <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180307155020.32613-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-c2c.c')
| -rw-r--r-- | tools/perf/builtin-c2c.c | 24 |
1 files 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; } |