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[PATCH perf/core 07/13] perf: Fix to destroy kernel maps when machine exits

From Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Newsgroups linux.kernel
Subject [PATCH perf/core 07/13] perf: Fix to destroy kernel maps when machine exits
Date 2015-11-18 07:50 +0100
Message-ID <qw4J3-7HS-7@gated-at.bofh.it> (permalink)
References <qw4J3-7HS-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Actually machine__exit forgot to call machine__destroy_kernel_maps.
So this fixes to call it. 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>
---
 tools/perf/util/machine.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7c647d3..15282df 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -121,6 +121,7 @@ void machine__delete_threads(struct machine *machine)
 
 void machine__exit(struct machine *machine)
 {
+	machine__destroy_kernel_maps(machine);
 	map_groups__exit(&machine->kmaps);
 	dsos__exit(&machine->dsos);
 	machine__exit_vdso(machine);

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[PATCH perf/core 07/13] perf: Fix to destroy kernel maps when  machine exits Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> - 2015-11-18 07:50 +0100
  [tip:perf/core] perf machine:   Fix to destroy kernel maps when machine exits tip-bot for Masami Hiramatsu <tipbot@zytor.com> - 2015-11-23 17:20 +0100

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