On Sun, Oct 14, 2018 at 10:16:56AM +0200, Thomas Gleixner wrote: > On Sun, 14 Oct 2018, Liran Alon wrote: > > > On 13 Oct 2018, at 17:53, lantianyu1...@gmail.com wrote: > > > > > > From: Lan Tianyu <tianyu....@microsoft.com> > > > > > > This patch is to add wrapper functions for tlb_remote_flush_with_range > > > callback. > > > > > > Signed-off-by: Lan Tianyu <tianyu....@microsoft.com> > > > --- > > > Change sicne V3: > > > Remove code of updating "tlbs_dirty" > > > Change since V2: > > > Fix comment in the kvm_flush_remote_tlbs_with_range() > > > --- > > > arch/x86/kvm/mmu.c | 40 ++++++++++++++++++++++++++++++++++++++++ > > > 1 file changed, 40 insertions(+) > > > > > > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > > > index c73d9f650de7..ff656d85903a 100644 > > > --- a/arch/x86/kvm/mmu.c > > > +++ b/arch/x86/kvm/mmu.c > > > @@ -264,6 +264,46 @@ static void mmu_spte_set(u64 *sptep, u64 spte); > > > static union kvm_mmu_page_role > > > kvm_mmu_calc_root_page_role(struct kvm_vcpu *vcpu); > > > > > > + > > > +static inline bool kvm_available_flush_tlb_with_range(void) > > > +{ > > > + return kvm_x86_ops->tlb_remote_flush_with_range; > > > +} > > > > Seems that kvm_available_flush_tlb_with_range() is not used in this patch… > > What's wrong with that? > > It provides the implementation and later patches make use of it. It's a > sensible way to split patches into small, self contained entities.
From what I can see of the patches that follow _this_ patch in the series, this function remains unused. So, not only is it not used in this patch, it's not used in this series. I think the real question that needs asking is - what is the plan for this function, and when will it be used? -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel