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perf symbols: Protect dso symbol loading using a mutex

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Add mutex to protect it from concurrent dso__load().

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1431909055-21442-26-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim
2015-05-18 09:30:40 +09:00
committed by Arnaldo Carvalho de Melo
parent 9c9f5a2f19
commit 4a936edc31
3 changed files with 27 additions and 10 deletions
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tools/perf/util/dso.h
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@@ -129,6 +129,7 @@ struct dsos {
struct auxtrace_cache;
struct dso {
pthread_mutex_t lock;
struct list_head node;
struct rb_node rb_node; /* rbtree node sorted by long name */
struct rb_root symbols[MAP__NR_TYPES];