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Events may still be ordered even if there are no timestamps e.g. if the data is recorded per-thread. Also synthesized COMM events have a timestamp of zero. Consequently it is better to keep comm entries even if they have a timestamp of zero. However, when a struct thread is created the command string is not known and a comm entry with a string of the form ":<tid>" is used. In that case thread->comm_set is false and the comm entry should be overridden. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1415715423-15563-4-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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