This is another rebase, on top of mainline now (don't need the
asm-generic tree), and without any x86 or membarrier changes.
This makes the series far smaller and more manageable and
without the controversial bits.

Thanks,
Nick

Nicholas Piggin (5):
  lazy tlb: introduce lazy mm refcount helper functions
  lazy tlb: allow lazy tlb mm switching to be configurable
  lazy tlb: shoot lazies, a non-refcounting lazy tlb option
  powerpc: use lazy mm refcount helper functions
  powerpc/64s: enable MMU_LAZY_TLB_SHOOTDOWN

 arch/Kconfig                         | 30 ++++++++++
 arch/arm/mach-rpc/ecard.c            |  2 +-
 arch/powerpc/Kconfig                 |  1 +
 arch/powerpc/kernel/smp.c            |  2 +-
 arch/powerpc/mm/book3s64/radix_tlb.c |  4 +-
 fs/exec.c                            |  4 +-
 include/linux/sched/mm.h             | 20 +++++++
 kernel/cpu.c                         |  2 +-
 kernel/exit.c                        |  2 +-
 kernel/fork.c                        | 52 ++++++++++++++++
 kernel/kthread.c                     | 11 ++--
 kernel/sched/core.c                  | 88 ++++++++++++++++++++--------
 kernel/sched/sched.h                 |  4 +-
 13 files changed, 184 insertions(+), 38 deletions(-)

-- 
2.23.0