linux-kernel - Re: [PATCH v7 3/8] KVM: Make __kvm_follow_pfn not imply FOLL

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Date:   Wed, 5 Jul 2023 15:23:35 +0800
From:   Yu Zhang <yu.c.zhang@...ux.intel.com>
To:     David Stevens <stevensd@...omium.org>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Marc Zyngier <maz@...nel.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Peter Xu <peterx@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH v7 3/8] KVM: Make __kvm_follow_pfn not imply FOLL_GET

>  
> +void kvm_set_page_accessed(struct page *page);
> +void kvm_set_page_dirty(struct page *page);
> +
No one calls these 2 routines in this patch. How about move this change to
[PATCH v7 5/8] KVM: x86/mmu: Don't pass FOLL_GET to __kvm_follow_pfn ?

...

> @@ -2930,17 +2933,19 @@ static bool kvm_is_ad_tracked_page(struct page *page)
>  	return !PageReserved(page);
>  }
>  
> -static void kvm_set_page_dirty(struct page *page)
> +void kvm_set_page_dirty(struct page *page)
>  {
>  	if (kvm_is_ad_tracked_page(page))
>  		SetPageDirty(page);
>  }
> +EXPORT_SYMBOL_GPL(kvm_set_page_dirty);
>  
> -static void kvm_set_page_accessed(struct page *page)
> +void kvm_set_page_accessed(struct page *page)
>  {
>  	if (kvm_is_ad_tracked_page(page))
>  		mark_page_accessed(page);
>  }
> +EXPORT_SYMBOL_GPL(kvm_set_page_accessed);

Same here.

B.R.
Yu