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authorJiri Olsa <jolsa@kernel.org>2018-03-07 16:50:07 +0100
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-03-08 15:30:45 +0100
commit5cedb413a63d452356aa634e0d4ffcc24f7dbcb5 (patch)
tree6ea4da7e5704bc00ab26f0c8aa48937392aee061 /tools/perf/builtin-c2c.c
parentperf tools: Add refcnt into struct mem_info (diff)
downloadlinux-5cedb413a63d452356aa634e0d4ffcc24f7dbcb5.tar.xz
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 '')
-rw-r--r--tools/perf/builtin-c2c.c24
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;
}