[PATCH v4 0/4] shoot lazy tlbs

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The additional unused config option was a valid criticism, so this now
purely just toggles refcounting of the lazy tlb mm.

Thanks,
Nick

Since v3:
- Removed the extra config option, MMU_LAZY_TLB=n. This can be
  resurrected if an arch wants it.

Nicholas Piggin (4):
  lazy tlb: introduce lazy mm refcount helper functions
  lazy tlb: allow lazy tlb mm refcounting to be configurable
  lazy tlb: shoot lazies, a non-refcounting lazy tlb option
  powerpc/64s: enable MMU_LAZY_TLB_SHOOTDOWN

 arch/Kconfig                         | 17 ++++++++++
 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                        | 51 ++++++++++++++++++++++++++++
 kernel/kthread.c                     | 11 +++---
 kernel/sched/core.c                  | 35 +++++++++++++------
 kernel/sched/sched.h                 |  4 ++-
 13 files changed, 132 insertions(+), 23 deletions(-)

-- 
2.23.0





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