[PATCH 0/4] perf: Fix leaked events when sigtrap = 1

[Frederic Weisbecker]

While looking at task_work users I just noticed that perf doesn't flush
its own upon event exiting. This looks especially problematic with child
events. Please have a thourough look at the last patch, I may easily
have missed something within the maze.

Frederic Weisbecker (4):
  task_work: s/task_work_cancel()/task_work_cancel_func()/
  task_work: Introduce task_work_cancel() again
  perf: Fix event leak upon exit
  perf: Fix event leak upon exec and file release

 include/linux/perf_event.h |  1 +
 include/linux/task_work.h  |  3 ++-
 kernel/events/core.c       | 40 +++++++++++++++++++++++++++++++-------
 kernel/irq/manage.c        |  2 +-
 kernel/task_work.c         | 34 +++++++++++++++++++++++++++-----
 security/keys/keyctl.c     |  2 +-
 6 files changed, 67 insertions(+), 15 deletions(-)

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2.44.0