This fixes a tricky bug that was noticed by TLB multi-hits in a guest stress testing CPU hotplug, but TLB invalidation means any kind of data corruption is possible.
Thanks, Nick Nicholas Piggin (4): powerpc/64s: Fix hash ISA v3.0 TLBIEL instruction generation powerpc/64s/pseries: Fix hash tlbiel_all_isa300 for guest kernels kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling powerpc/64s: Trim offlined CPUs from mm_cpumasks arch/powerpc/include/asm/book3s/64/mmu.h | 12 ++++++++++ arch/powerpc/mm/book3s64/hash_native.c | 23 +++++++++++++------- arch/powerpc/mm/book3s64/mmu_context.c | 20 +++++++++++++++++ arch/powerpc/platforms/powermac/smp.c | 2 ++ arch/powerpc/platforms/powernv/smp.c | 3 +++ arch/powerpc/platforms/pseries/hotplug-cpu.c | 3 +++ kernel/cpu.c | 6 ++++- 7 files changed, 60 insertions(+), 9 deletions(-) -- 2.23.0