linux-kernel - Re: [PATCH] vhost: replace % with & on data path

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Message-ID: <1448872969.3032.1.camel@perches.com>
Date:	Mon, 30 Nov 2015 00:42:49 -0800
From:	Joe Perches <joe@...ches.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>, linux-kernel@...r.kernel.org
Cc:	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] vhost: replace % with & on data path

On Mon, 2015-11-30 at 10:34 +0200, Michael S. Tsirkin wrote:
> We know vring num is a power of 2, so use &
> to mask the high bits.
[]
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
[]
> @@ -1366,10 +1366,12 @@ int vhost_get_vq_desc(struct vhost_virtqueue *vq,
>  	/* Only get avail ring entries after they have been exposed by guest. */
>  	smp_rmb();
>  
> +	}

?

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