[PATCH 23/37] perf machine: Fix to destroy kernel maps when machine exits

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu 

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 
Cc: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: 
http://lkml.kernel.org/r/20151118064024.30709.43577.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo 
---
 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 e9e09bee221c..a358771fe9e3 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -122,6 +122,7 @@ void machine__delete_threads(struct machine *machine)
 
 void machine__exit(struct machine *machine)
 {
+   machine__destroy_kernel_maps(machine);
map_groups__exit(>kmaps);
dsos__exit(>dsos);
machine__exit_vdso(machine);
-- 
2.1.0

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[PATCH 23/37] perf machine: Fix to destroy kernel maps when machine exits

[Arnaldo Carvalho de Melo]

From: Masami Hiramatsu 

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 
Cc: Adrian Hunter 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: 
http://lkml.kernel.org/r/20151118064024.30709.43577.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo 
---
 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 e9e09bee221c..a358771fe9e3 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -122,6 +122,7 @@ void machine__delete_threads(struct machine *machine)
 
 void machine__exit(struct machine *machine)
 {
+   machine__destroy_kernel_maps(machine);
map_groups__exit(>kmaps);
dsos__exit(>dsos);
machine__exit_vdso(machine);
-- 
2.1.0

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Please read the FAQ at  http://www.tux.org/lkml/