[PATCH RFC 03/10] petf tools: using comm_str to replace comm in hist_entry

[kan.liang@intel.com]

From: Kan Liang <kan.liang@intel.com>

For hist_entry, it only needs comm_str for cmp.

Signed-off-by: Kan Liang <kan.liang@intel.com>
---
 tools/perf/util/hist.c | 4 ++--
 tools/perf/util/sort.c | 8 ++++----
 tools/perf/util/sort.h | 2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index e60d8d8..0f00dd9 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -587,7 +587,7 @@ __hists__add_entry(struct hists *hists,
 	struct namespaces *ns = thread__namespaces(al->thread);
 	struct hist_entry entry = {
 		.thread	= al->thread,
-		.comm = thread__comm(al->thread),
+		.comm_str = thread__comm_str(al->thread),
 		.cgroup_id = {
 			.dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0,
 			.ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0,
@@ -944,7 +944,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
 		.hists = evsel__hists(evsel),
 		.cpu = al->cpu,
 		.thread = al->thread,
-		.comm = thread__comm(al->thread),
+		.comm_str = thread__comm_str(al->thread),
 		.ip = al->addr,
 		.ms = {
 			.map = al->map,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index eb3ab90..99ab411 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -114,26 +114,26 @@ static int64_t
 sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
 {
 	/* Compare the addr that should be unique among comm */
-	return strcmp(comm__str(right->comm), comm__str(left->comm));
+	return strcmp(right->comm_str, left->comm_str);
 }
 
 static int64_t
 sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
 {
 	/* Compare the addr that should be unique among comm */
-	return strcmp(comm__str(right->comm), comm__str(left->comm));
+	return strcmp(right->comm_str, left->comm_str);
 }
 
 static int64_t
 sort__comm_sort(struct hist_entry *left, struct hist_entry *right)
 {
-	return strcmp(comm__str(right->comm), comm__str(left->comm));
+	return strcmp(right->comm_str, left->comm_str);
 }
 
 static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf,
 				     size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%-*.*s", width, width, comm__str(he->comm));
+	return repsep_snprintf(bf, size, "%-*.*s", width, width, he->comm_str);
 }
 
 struct sort_entry sort_comm = {
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f36dc49..861cbe7 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -96,7 +96,7 @@ struct hist_entry {
 	struct he_stat		*stat_acc;
 	struct map_symbol	ms;
 	struct thread		*thread;
-	struct comm		*comm;
+	const char		*comm_str;
 	struct namespace_id	cgroup_id;
 	u64			ip;
 	u64			transaction;
-- 
2.5.5