[PATCH v4 0/2] perf kvm stat live: Copy events

[Alexander Yarygin <yarygin@linux.vnet.ibm.com>]

Hello,

This is a fix of 'perf kvm stat live' crash when it tries
to parse events that have been already overwritten by the kernel.

Patches
- 1/2 adds an option to copy events when they are pushed to the samples queue.  The patch is based on the patch by David Ahern (https://lkml.org/lkml/2013/9/6/388)
- 2/2 enables the copying for perf kvm stat live.

Changes in v4:
  - removed extra whitespaces :)

Changes in v3:
  - move repetitive code into functions

Changes in v2:
  - the option to copy events is now a part of ordered_events
  - use memdup() instead malloc()/memcpy()
  - events alocations are under the report.queue-size limit

Alexander Yarygin (2):
  perf tools: Add option to copy events when queueing
  perf kvm stat live: Enable events copying

 tools/perf/builtin-kvm.c         |  1 +
 tools/perf/util/ordered-events.c | 49 ++++++++++++++++++++++++++++++++++++----
 tools/perf/util/ordered-events.h | 10 +++++++-
 tools/perf/util/session.c        |  5 ++--
 4 files changed, 57 insertions(+), 8 deletions(-)

-- 
1.9.1