Re: [PATCH] kvm: defer huge page recovery vhost task to later

[Paolo Bonzini <pbonzini@redhat.com>]

> Defer the task to after the first VM_RUN call, which occurs after the
> parent process has forked all its jailed processes. This needs to happen
> only once for the kvm instance, so this patch introduces infrastructure
> to do that (Suggested-by Paolo).

Queued for 6.13; in the end I moved the new data structure to include/linux,
since it is generally usable and not limited to KVM.

>  int kvm_arch_post_init_vm(struct kvm *kvm)
>  {
> -	return kvm_mmu_post_init_vm(kvm);
> +	once_init(&kvm->arch.nx_once);
> +	return 0;
>  }

This could have been in kvm_arch_init_vm(), but then the last user of
kvm_arch_post_init_vm() goes away and more cleanup is in order.  I'll
post the obvious patch shortly.

Thanks Keith and Alyssa.

Paolo