[PULL 07/12] KVM: PPC: Book3S HV: Fix race in reading change bit when removing HPTE

From: Paul Mackerras pau...@samba.org The reference (R) and change (C) bits in a HPT entry can be set by hardware at any time up until the HPTE is invalidated and the TLB invalidation sequence has completed. This means that when removing a HPTE, we need to read the HPTE after the invalidation

[PULL 07/12] KVM: PPC: Book3S HV: Fix race in reading change bit when removing HPTE

From: Paul Mackerras pau...@samba.org The reference (R) and change (C) bits in a HPT entry can be set by hardware at any time up until the HPTE is invalidated and the TLB invalidation sequence has completed. This means that when removing a HPTE, we need to read the HPTE after the invalidation