perf test: Use machine__new_host in mmap thread code reading test

This is more straightforward than what we have now.

It also fixes a segfault within machine__exit, that's caused
by not creating kernel maps for machine.. We're calling
machine__destroy_kernel_maps in machine__exit since commit:

  ebe9729c8c31 perf machine: Fix to destroy kernel maps when machine exits

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1449131658-1841-4-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 4417b6a079f0..26182ffcea75 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -433,7 +433,6 @@ enum {
 
 static int do_test_code_reading(bool try_kcore)
 {
-        struct machines machines;
         struct machine *machine;
         struct thread *thread;
         struct record_opts opts = {
@@ -459,8 +458,7 @@ static int do_test_code_reading(bool try_kcore)
 
         pid = getpid();
 
-        machines__init(&machines);
-        machine = &machines.host;
+        machine = machine__new_host();
 
         ret = machine__create_kernel_maps(machine);
         if (ret < 0) {
@@ -594,9 +592,8 @@ out_err:
                 cpu_map__put(cpus);
                 thread_map__put(threads);
         }
-        machines__destroy_kernel_maps(&machines);
         machine__delete_threads(machine);
-        machines__exit(&machines);
+        machine__delete(machine);
 
         return err;
 }