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Date: Wed, 11 Oct 2023 23:23:55 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Nick Terrell <terrelln@...com>,
Kan Liang <kan.liang@...ux.intel.com>,
Song Liu <song@...nel.org>,
Sandipan Das <sandipan.das@....com>,
Anshuman Khandual <anshuman.khandual@....com>,
James Clark <james.clark@....com>,
Liam Howlett <liam.howlett@...cle.com>,
Miguel Ojeda <ojeda@...nel.org>, Leo Yan <leo.yan@...aro.org>,
German Gomez <german.gomez@....com>,
Ravi Bangoria <ravi.bangoria@....com>,
Artem Savkov <asavkov@...hat.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org, bpf@...r.kernel.org
Subject: [PATCH v2 09/13] perf mem_info: Add and use map_symbol__exit and addr_map_symbol__exit
Fix leak where mem_info__put wouldn't release the maps/map as used by
perf mem. Add exit functions and use elsewhere that the maps and map
are released.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/util/Build | 1 +
tools/perf/util/callchain.c | 15 +++++----------
tools/perf/util/hist.c | 6 ++----
tools/perf/util/machine.c | 6 ++----
tools/perf/util/map_symbol.c | 15 +++++++++++++++
tools/perf/util/map_symbol.h | 4 ++++
tools/perf/util/symbol.c | 5 ++++-
7 files changed, 33 insertions(+), 19 deletions(-)
create mode 100644 tools/perf/util/map_symbol.c
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 0ea5a9d368d4..96058f949ec9 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -49,6 +49,7 @@ perf-y += dso.o
perf-y += dsos.o
perf-y += symbol.o
perf-y += symbol_fprintf.o
+perf-y += map_symbol.o
perf-y += color.o
perf-y += color_config.o
perf-y += metricgroup.o
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 0a7919c2af91..02881d5b822c 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -1496,16 +1496,14 @@ static void free_callchain_node(struct callchain_node *node)
list_for_each_entry_safe(list, tmp, &node->parent_val, list) {
list_del_init(&list->list);
- map__zput(list->ms.map);
- maps__zput(list->ms.maps);
+ map_symbol__exit(&list->ms);
zfree(&list->brtype_stat);
free(list);
}
list_for_each_entry_safe(list, tmp, &node->val, list) {
list_del_init(&list->list);
- map__zput(list->ms.map);
- maps__zput(list->ms.maps);
+ map_symbol__exit(&list->ms);
zfree(&list->brtype_stat);
free(list);
}
@@ -1591,8 +1589,7 @@ int callchain_node__make_parent_list(struct callchain_node *node)
out:
list_for_each_entry_safe(chain, new, &head, list) {
list_del_init(&chain->list);
- map__zput(chain->ms.map);
- maps__zput(chain->ms.maps);
+ map_symbol__exit(&chain->ms);
zfree(&chain->brtype_stat);
free(chain);
}
@@ -1676,10 +1673,8 @@ void callchain_cursor_reset(struct callchain_cursor *cursor)
cursor->nr = 0;
cursor->last = &cursor->first;
- for (node = cursor->first; node != NULL; node = node->next) {
- map__zput(node->ms.map);
- maps__zput(node->ms.maps);
- }
+ for (node = cursor->first; node != NULL; node = node->next)
+ map_symbol__exit(&node->ms);
}
void callchain_param_setup(u64 sample_type, const char *arch)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index ac8c0ef48a7f..d62693b8fad8 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -524,8 +524,7 @@ static int hist_entry__init(struct hist_entry *he,
map__put(he->mem_info->daddr.ms.map);
}
err:
- maps__zput(he->ms.maps);
- map__zput(he->ms.map);
+ map_symbol__exit(&he->ms);
zfree(&he->stat_acc);
return -ENOMEM;
}
@@ -1317,8 +1316,7 @@ void hist_entry__delete(struct hist_entry *he)
struct hist_entry_ops *ops = he->ops;
thread__zput(he->thread);
- maps__zput(he->ms.maps);
- map__zput(he->ms.map);
+ map_symbol__exit(&he->ms);
if (he->branch_info) {
map__zput(he->branch_info->from.ms.map);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 8e5085b77c7b..6ca7500e2cf4 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -2389,8 +2389,7 @@ static int add_callchain_ip(struct thread *thread,
iter_cycles, branch_from, srcline);
out:
addr_location__exit(&al);
- maps__put(ms.maps);
- map__put(ms.map);
+ map_symbol__exit(&ms);
return err;
}
@@ -3116,8 +3115,7 @@ static int append_inlines(struct callchain_cursor *cursor, struct map_symbol *ms
if (ret != 0)
return ret;
}
- map__put(ilist_ms.map);
- maps__put(ilist_ms.maps);
+ map_symbol__exit(&ilist_ms);
return ret;
}
diff --git a/tools/perf/util/map_symbol.c b/tools/perf/util/map_symbol.c
new file mode 100644
index 000000000000..bef5079f2403
--- /dev/null
+++ b/tools/perf/util/map_symbol.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "map_symbol.h"
+#include "maps.h"
+#include "map.h"
+
+void map_symbol__exit(struct map_symbol *ms)
+{
+ maps__zput(ms->maps);
+ map__zput(ms->map);
+}
+
+void addr_map_symbol__exit(struct addr_map_symbol *ams)
+{
+ map_symbol__exit(&ams->ms);
+}
diff --git a/tools/perf/util/map_symbol.h b/tools/perf/util/map_symbol.h
index e08817b0c30f..72d5ed938ed6 100644
--- a/tools/perf/util/map_symbol.h
+++ b/tools/perf/util/map_symbol.h
@@ -22,4 +22,8 @@ struct addr_map_symbol {
u64 phys_addr;
u64 data_page_size;
};
+
+void map_symbol__exit(struct map_symbol *ms);
+void addr_map_symbol__exit(struct addr_map_symbol *ams);
+
#endif // __PERF_MAP_SYMBOL
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 2740d4457c13..d67a87072eec 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2790,8 +2790,11 @@ struct mem_info *mem_info__get(struct mem_info *mi)
void mem_info__put(struct mem_info *mi)
{
- if (mi && refcount_dec_and_test(&mi->refcnt))
+ if (mi && refcount_dec_and_test(&mi->refcnt)) {
+ addr_map_symbol__exit(&mi->iaddr);
+ addr_map_symbol__exit(&mi->daddr);
free(mi);
+ }
}
struct mem_info *mem_info__new(void)
--
2.42.0.609.gbb76f46606-goog
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