linux-kernel - Re: [PATCH v2 4/5] KVM: irqfd: Rename resampler->notifier

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Date:   Tue, 9 Aug 2022 22:46:54 +0200
From:   Eric Auger <eric.auger@...hat.com>
To:     Dmytro Maluka <dmy@...ihalf.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        Alex Williamson <alex.williamson@...hat.com>,
        Rong L Liu <rong.l.liu@...el.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        Tomasz Nowicki <tn@...ihalf.com>,
        Grzegorz Jaszczyk <jaz@...ihalf.com>, upstream@...ihalf.com,
        Dmitry Torokhov <dtor@...gle.com>
Subject: Re: [PATCH v2 4/5] KVM: irqfd: Rename resampler->notifier



On 8/5/22 21:39, Dmytro Maluka wrote:
> Since resampler irqfd is now using a mask notifier along with an ack
> notifier, rename resampler->notifier to resampler->ack_notifier for
> clarity.
>
> Signed-off-by: Dmytro Maluka <dmy@...ihalf.com>
Reviewed-by: Eric Auger <eric.auger@...hat.com>

Eric
> ---
>  include/linux/kvm_irqfd.h |  2 +-
>  virt/kvm/eventfd.c        | 16 ++++++++--------
>  2 files changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/include/linux/kvm_irqfd.h b/include/linux/kvm_irqfd.h
> index 01754a1abb9e..4df9e6bbd7db 100644
> --- a/include/linux/kvm_irqfd.h
> +++ b/include/linux/kvm_irqfd.h
> @@ -37,7 +37,7 @@ struct kvm_kernel_irqfd_resampler {
>  	 * RCU list modified under kvm->irqfds.resampler_lock
>  	 */
>  	struct list_head list;
> -	struct kvm_irq_ack_notifier notifier;
> +	struct kvm_irq_ack_notifier ack_notifier;
>  	struct kvm_irq_mask_notifier mask_notifier;
>  	bool masked;
>  	bool pending;
> diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
> index f98dcce3959c..72de942dbb9c 100644
> --- a/virt/kvm/eventfd.c
> +++ b/virt/kvm/eventfd.c
> @@ -70,11 +70,11 @@ irqfd_resampler_ack(struct kvm_irq_ack_notifier *kian)
>  	bool notify = true;
>  
>  	resampler = container_of(kian,
> -			struct kvm_kernel_irqfd_resampler, notifier);
> +			struct kvm_kernel_irqfd_resampler, ack_notifier);
>  	kvm = resampler->kvm;
>  
>  	kvm_set_irq(kvm, KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID,
> -		    resampler->notifier.gsi, 0, false);
> +		    resampler->ack_notifier.gsi, 0, false);
>  
>  	spin_lock(&resampler->lock);
>  	if (resampler->masked) {
> @@ -137,11 +137,11 @@ irqfd_resampler_shutdown(struct kvm_kernel_irqfd *irqfd)
>  
>  	if (list_empty(&resampler->list)) {
>  		list_del(&resampler->link);
> -		kvm_unregister_irq_ack_notifier(kvm, &resampler->notifier);
> +		kvm_unregister_irq_ack_notifier(kvm, &resampler->ack_notifier);
>  		kvm_unregister_irq_mask_notifier(kvm, resampler->mask_notifier.irq,
>  						 &resampler->mask_notifier);
>  		kvm_set_irq(kvm, KVM_IRQFD_RESAMPLE_IRQ_SOURCE_ID,
> -			    resampler->notifier.gsi, 0, false);
> +			    resampler->ack_notifier.gsi, 0, false);
>  		kfree(resampler);
>  	}
>  
> @@ -390,7 +390,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
>  
>  		list_for_each_entry(resampler,
>  				    &kvm->irqfds.resampler_list, link) {
> -			if (resampler->notifier.gsi == irqfd->gsi) {
> +			if (resampler->ack_notifier.gsi == irqfd->gsi) {
>  				irqfd->resampler = resampler;
>  				break;
>  			}
> @@ -407,8 +407,8 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
>  
>  			resampler->kvm = kvm;
>  			INIT_LIST_HEAD(&resampler->list);
> -			resampler->notifier.gsi = irqfd->gsi;
> -			resampler->notifier.irq_acked = irqfd_resampler_ack;
> +			resampler->ack_notifier.gsi = irqfd->gsi;
> +			resampler->ack_notifier.irq_acked = irqfd_resampler_ack;
>  			resampler->mask_notifier.func = irqfd_resampler_mask_notify;
>  			spin_lock_init(&resampler->lock);
>  			INIT_LIST_HEAD(&resampler->link);
> @@ -417,7 +417,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args)
>  			kvm_register_and_fire_irq_mask_notifier(kvm, irqfd->gsi,
>  								&resampler->mask_notifier);
>  			kvm_register_irq_ack_notifier(kvm,
> -						      &resampler->notifier);
> +						      &resampler->ack_notifier);
>  			irqfd->resampler = resampler;
>  		}
>