perf tools: Tag thread comm as overriden

The problem is that when a thread overrides its default ":%pid" comm, we
forget to tag the thread comm as overriden. Hence, this overriden comm
is not inherited on future forks. Fix it.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131116010207.GA18855@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index cd8e2f5..49eaf1d 100644 (file)
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -70,14 +70,13 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
        /* Override latest entry if it had no specific time coverage */
        if (!curr->start) {
                comm__override(curr, str, timestamp);
-               return 0;
+       } else {
+               new = comm__new(str, timestamp);
+               if (!new)
+                       return -ENOMEM;
+               list_add(&new->list, &thread->comm_list);
        }
 
-       new = comm__new(str, timestamp);
-       if (!new)
-               return -ENOMEM;
-
-       list_add(&new->list, &thread->comm_list);
        thread->comm_set = true;
 
        return 0;