perf record: Don't pass host machine to guest synthesizer

We were calling perf_session__process_machines(), that would first pass
the struct machine associated with the host to the provided callback,
perf_event__synthesize_guest_os() that would test if it was the host and
if so wouldn't do anything.

Ditch this contraption, just call directly machines__process with the
list of guests.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
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/n/tip-x65vsxgzg4dvo3zqohtrrb9o@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 4 insertions, 16 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index de60dd4ee5d3..69e28950a328 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -328,10 +328,6 @@ static void perf_event__synthesize_guest_os(struct machine *machine, void *data)
 {
         int err;
         struct perf_tool *tool = data;
-
-        if (machine__is_host(machine))
-                return;
-
         /*
          *As for guest kernel when processing subcommand record&report,
          *we arrange module mmap prior to guest kernel mmap and trigger
@@ -574,9 +570,10 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
                        "Symbol resolution may be skewed if relocation was used (e.g. kexec).\n"
                        "Check /proc/modules permission or run as root.\n");
 
-        if (perf_guest)
-                perf_session__process_machines(session, tool,
-                                               perf_event__synthesize_guest_os);
+        if (perf_guest) {
+                machines__process(&session->machines,
+                                  perf_event__synthesize_guest_os, tool);
+        }
 
         if (!opts->target.system_wide)
                 err = perf_event__synthesize_thread_map(tool, evsel_list->threads,
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 8c2302504199..426ca0c3c5b6 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -101,15 +101,6 @@ struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t p
         return machines__findnew(&self->machines, pid);
 }
 
-static inline
-void perf_session__process_machines(struct perf_session *self,
-                                    struct perf_tool *tool,
-                                    machine__process_t process)
-{
-        process(&self->host_machine, tool);
-        return machines__process(&self->machines, process, tool);
-}
-
 struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
 size_t perf_session__fprintf(struct perf_session *self, FILE *fp);