Contention when updating a page table entry can lead to unnecessary refaults. The issue was reported by a user when testing PUD hugepage support[1] but also exists for PMD and PTE updates though with a lower probability. This version - * fixes a nit reported by Suzuki * Re-orders the checks when setting PMD hugepage * drops mistakenly introduced Change-id in the commit message Thanks, Punit [1] https://lkml.org/lkml/2018/7/16/482 Punit Agrawal (2): KVM: arm/arm64: Skip updating PMD entry if no change KVM: arm/arm64: Skip updating PTE entry if no change virt/kvm/arm/mmu.c | 43 ++++++++++++++++++++++++++++++++----------- 1 file changed, 32 insertions(+), 11 deletions(-) -- 2.18.0 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
