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| author |   Namhyung Kim <namhyung.kim@lge.com> | 2012-05-31 14:43:26 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-05-31 10:47:12 -0300 |
| commit | 472606458f3e1ced5fe3cc5f04e90a6b5a4732cf (patch) | |
| tree | a4110008697cc1e80d0c2a47cf9871e3cf32b299 /tools/perf/util/callchain.c | |
| parent | perf tools: Fix pager on minimal-install embedded systems (diff) | |
| download | linux-dev-472606458f3e1ced5fe3cc5f04e90a6b5a4732cf.tar.xz linux-dev-472606458f3e1ced5fe3cc5f04e90a6b5a4732cf.zip | |
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/callchain.c')
| -rw-r--r-- | tools/perf/util/callchain.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 9f7106a8d9a4..3a6bff47614f 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -18,6 +18,8 @@ #include "util.h" #include "callchain.h" +__thread struct callchain_cursor callchain_cursor; + bool ip_callchain__valid(struct ip_callchain *chain, const union perf_event *event) { |