diff options
Diffstat (limited to 'tools/perf/builtin-kmem.c')
| -rw-r--r-- | tools/perf/builtin-kmem.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 96a6611e4e53..9714327fd0ea 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -399,6 +399,7 @@ static u64 find_callsite(struct evsel *evsel, struct perf_sample *sample) struct addr_location al; struct machine *machine = &kmem_session->machines.host; struct callchain_cursor_node *node; + struct callchain_cursor *cursor; u64 result = sample->ip; addr_location__init(&al); @@ -408,14 +409,19 @@ static u64 find_callsite(struct evsel *evsel, struct perf_sample *sample) } al.thread = machine__findnew_thread(machine, sample->pid, sample->tid); - sample__resolve_callchain(sample, &callchain_cursor, NULL, evsel, &al, 16); - callchain_cursor_commit(&callchain_cursor); + cursor = get_tls_callchain_cursor(); + if (cursor == NULL) + goto out; + + sample__resolve_callchain(sample, cursor, NULL, evsel, &al, 16); + + callchain_cursor_commit(cursor); while (true) { struct alloc_func key, *caller; u64 addr; - node = callchain_cursor_current(&callchain_cursor); + node = callchain_cursor_current(cursor); if (node == NULL) break; @@ -434,7 +440,7 @@ static u64 find_callsite(struct evsel *evsel, struct perf_sample *sample) } else pr_debug3("skipping alloc function: %s\n", caller->name); - callchain_cursor_advance(&callchain_cursor); + callchain_cursor_advance(cursor); } pr_debug2("unknown callsite: %"PRIx64 "\n", sample->ip); |