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| author | Adrian Hunter | 2015-08-19 16:29:19 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2015-08-19 19:15:09 +0200 |
| commit | 0d7e7acc47133e82911e24758178815cfee309e9 (patch) | |
| tree | c95e7817da85ba9a8bf711d58600add03b7a16df /tools/perf/util/machine.c | |
| parent | perf/x86/intel/cqm: Do not access cpu_data() from CPU_UP_PREPARE handler (diff) | |
| download | kernel-qcow2-linux-0d7e7acc47133e82911e24758178815cfee309e9.tar.gz kernel-qcow2-linux-0d7e7acc47133e82911e24758178815cfee309e9.tar.xz kernel-qcow2-linux-0d7e7acc47133e82911e24758178815cfee309e9.zip | |
perf tools: Avoid deadlock when map_groups are broken
Attempting to clone map groups onto themselves will deadlock.
It only happens because of other bugs, but the code should protect
itself anyway.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1439994561-27436-2-git-send-email-adrian.hunter@intel.com
[ Use pr_debug() instead of dump_fprintf() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/machine.c')
0 files changed, 0 insertions, 0 deletions