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authorNamhyung Kim <namhyung.kim@lge.com>2012-05-31 14:43:26 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-05-31 10:47:12 -0300
commit472606458f3e1ced5fe3cc5f04e90a6b5a4732cf (patch)
treea4110008697cc1e80d0c2a47cf9871e3cf32b299 /tools/perf/util/hist.h
parentea1b3ebac9a1c72c4362c784b4ed069a938a4ddb (diff)
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perf callchain: Make callchain cursors TLS
perf top -G has a race on callchain cursor between main thread and display thread. Since the callchain cursors are used locally make them thread-local data would solve the problem. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Reported-by: Sunjin Yang <fan4326@gmail.com> Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Sunjin Yang <fan4326@gmail.com> Link: http://lkml.kernel.org/r/1338443007-24857-1-git-send-email-namhyung.kim@lge.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/hist.h')
-rw-r--r--tools/perf/util/hist.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index cfc64e293f9..34bb556d621 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -67,8 +67,6 @@ struct hists {
struct events_stats stats;
u64 event_stream;
u16 col_len[HISTC_NR_COLS];
- /* Best would be to reuse the session callchain cursor */
- struct callchain_cursor callchain_cursor;
};
struct hist_entry *__hists__add_entry(struct hists *self,