Commit-ID:  70c57efb6118bff7426a6086026a4a8f3bd3c9e3
Gitweb:     http://git.kernel.org/tip/70c57efb6118bff7426a6086026a4a8f3bd3c9e3
Author:     David Ahern <dsah...@gmail.com>
AuthorDate: Sat, 25 May 2013 22:47:10 -0600
Committer:  Arnaldo Carvalho de Melo <a...@redhat.com>
CommitDate: Tue, 28 May 2013 16:24:05 +0300

perf  tools: Save parent pid in thread struct

Information is available, so why not save it in case some command wants
to use it.

Signed-off-by: David Ahern <dsah...@gmail.com>
Cc: Frederic Weisbecker <fweis...@gmail.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Link: 
http://lkml.kernel.org/r/1369543631-5106-1-git-send-email-dsah...@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/thread.c | 4 ++++
 tools/perf/util/thread.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 632e40e..40399cb 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -14,6 +14,7 @@ struct thread *thread__new(pid_t pid)
        if (self != NULL) {
                map_groups__init(&self->mg);
                self->pid = pid;
+               self->ppid = -1;
                self->comm = malloc(32);
                if (self->comm)
                        snprintf(self->comm, 32, ":%d", self->pid);
@@ -82,5 +83,8 @@ int thread__fork(struct thread *self, struct thread *parent)
        for (i = 0; i < MAP__NR_TYPES; ++i)
                if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
                        return -ENOMEM;
+
+       self->ppid = parent->pid;
+
        return 0;
 }
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 5ad2664..eeb7ac6 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -13,6 +13,7 @@ struct thread {
        };
        struct map_groups       mg;
        pid_t                   pid;
+       pid_t                   ppid;
        char                    shortname[3];
        bool                    comm_set;
        char                    *comm;
--
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