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authorIan Rogers <[email protected]>2023-03-11 18:15:39 -0800
committerArnaldo Carvalho de Melo <[email protected]>2023-03-13 17:42:26 -0300
commit4bb311b29e82c795340a6e4a5db83d8ccbe2dc49 (patch)
tree4b4b2559ea22f74c1ff6de65f692ae1bcb04e754
parent7abf0bccaaec77043358ee07e694d31cf9a7dd76 (diff)
perf parse-events: Pass ownership of the group name
Pass ownership of the group name rather than copying and freeing the original. This saves a memory allocation and copy. Signed-off-by: Ian Rogers <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Florian Fischer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: James Clark <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: John Garry <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Kan Liang <[email protected]> Cc: Kim Phillips <[email protected]> Cc: Leo Yan <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Steinar H. Gunderson <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Suzuki Poulouse <[email protected]> Cc: Xing Zhengjun <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
-rw-r--r--tools/perf/util/parse-events.c3
-rw-r--r--tools/perf/util/parse-events.y2
2 files changed, 3 insertions, 2 deletions
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 0336ff27c15f..1be454697d57 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1761,6 +1761,7 @@ parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
handled:
ret = 1;
+ free(name);
out:
free(leaders);
return ret;
@@ -1786,7 +1787,7 @@ void parse_events__set_leader(char *name, struct list_head *list,
leader = arch_evlist__leader(list);
__perf_evlist__set_leader(list, &leader->core);
- leader->group_name = name ? strdup(name) : NULL;
+ leader->group_name = name;
list_move(&leader->core.node, list);
}
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index be8c51770051..541b8dde2063 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -202,8 +202,8 @@ PE_NAME '{' events '}'
struct list_head *list = $3;
inc_group_count(list, _parse_state);
+ /* Takes ownership of $1. */
parse_events__set_leader($1, list, _parse_state);
- free($1);
$$ = list;
}
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