diff options
| author | David Ahern <dsahern@gmail.com> | 2013-05-25 22:47:10 -0600 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-05-28 16:24:05 +0300 |
| commit | 70c57efb6118bff7426a6086026a4a8f3bd3c9e3 (patch) | |
| tree | b108d219494ff498bf4da7ac9544696692751b04 /tools | |
| parent | 45528f7c699a71d2f3096173980aadd43dff6eaa (diff) | |
| download | linux-70c57efb6118bff7426a6086026a4a8f3bd3c9e3.tar.bz2 | |
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 <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1369543631-5106-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/thread.c | 4 | ||||
| -rw-r--r-- | tools/perf/util/thread.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 632e40e5ceca..40399cbcca77 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 5ad266403098..eeb7ac62b9e3 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; |