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
