linux-kernel - Re: [PATCH] KVM: x86/mmu: Stash 'kvm' in a local variable in kvm_mmu_free

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Date:   Thu, 24 Sep 2020 07:39:24 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: x86/mmu: Stash 'kvm' in a local variable in
 kvm_mmu_free_roots()

On Thu, Sep 24, 2020 at 02:42:19PM +0200, Vitaly Kuznetsov wrote:
> What about kvm_mmu_get_page(), make_mmu_pages_available(),
> mmu_alloc_root(), kvm_mmu_sync_roots(), direct_page_fault(),
> kvm_mmu_pte_write() which seem to be using the same ugly pattern? :-)

Heh, good question.  I guess only kvm_mmu_free_roots() managed to cross over
the threshold from "that's ugly" to "this is ridiculous".