tree 1f76cbf7b31b8439fa1a27b05314aad3450261b8
parent 2afd2bcfc3a026d6e4c2184bf41ccd74eb05758b
author Adrian Hunter <adrian.hunter@intel.com> 1405498033 +0300
committer Arnaldo Carvalho de Melo <acme@redhat.com> 1405603862 -0300

perf machine: Fix map groups of threads with unknown pids

Events like sched_switch do not provide a pid (tgid) which can result in
threads with an unknown pid.  If the pid is later discovered, join the
map groups.

Note the thread's map groups should be empty because they are populated
by MMAP events which do provide the pid and tid.

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/1405498033-23817-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>