[RFC PATCH 0/4] Membarrier fixes/cleanups

[Mathieu Desnoyers]

This series of fixes/cleanups is submitted for feedback. It takes care
of membarrier issues recently discussed.

Thanks,

Mathieu

Mathieu Desnoyers (4):
  Fix: sched/membarrier: private expedited registration check
  Cleanup: sched/membarrier: remove redundant check
  Cleanup: sched/membarrier: only sync_core before usermode for same mm
  Fix: sched/membarrier: p->mm->membarrier_state racy load

 include/linux/mm_types.h  |   7 +-
 include/linux/sched/mm.h  |   8 +--
 kernel/sched/core.c       |   1 +
 kernel/sched/membarrier.c | 141 +++++++++++++++++++++++++++-----------
 kernel/sched/sched.h      |  33 +++++++++
 5 files changed, 143 insertions(+), 47 deletions(-)

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2.17.1