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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>
This commit is contained in:
Jiri Olsa 2018-03-07 16:50:07 +01:00 committed by Arnaldo Carvalho de Melo
parent 9f87498f1c
commit 5cedb413a6
1 changed files with 11 additions and 13 deletions
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24
tools/perf/builtin-c2c.c
View File

@ -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 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
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;
}