perf machine: Fix to destroy kernel maps when machine exits
authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Wed, 18 Nov 2015 06:40:24 +0000 (15:40 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 19 Nov 2015 16:19:19 +0000 (13:19 -0300)
commitebe9729c8c3171aa46ad5d7af40acdc29806689d
tree1f118e944c8deee350a5c53059a30260aec511f2
parente96e4078e9a5ea150b3ad9a296440a7976439e4a
perf machine: Fix to destroy kernel maps when machine exits

Actually machine__exit forgot to call machine__destroy_kernel_maps.

This fixes some memory leaks on map as below.

Without this fix.
  ----
  ./perf probe vfs_read
  Added new event:
    probe:vfs_read       (on vfs_read)

  You can now use it in all perf tools, such as:

          perf record -e probe:vfs_read -aR sleep 1

  REFCNT: BUG: Unreclaimed objects found.
  REFCNT: Total 4 objects are not reclaimed.
     To see all backtraces, rerun with -v option
  ----
With this fix.
  ----
  ./perf probe vfs_read
  Added new event:
    probe:vfs_read       (on vfs_read)

  You can now use it in all perf tools, such as:

          perf record -e probe:vfs_read -aR sleep 1

  REFCNT: BUG: Unreclaimed objects found.
  REFCNT: Total 2 objects are not reclaimed.
     To see all backtraces, rerun with -v option
  ----

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20151118064024.30709.43577.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/machine.c