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

From	David Miller <davem@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] vhost: replace % with & on data path
Date	2015-11-30 17:20 +0100
Message-ID	<qAzlg-5Uw-19@gated-at.bofh.it> (permalink)
References	<qAsa5-1cU-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 30 Nov 2015 10:34:07 +0200

> We know vring num is a power of 2, so use &
> to mask the high bits.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> ---
>  drivers/vhost/vhost.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
> index 080422f..85f0f0a 100644
> --- 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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[PATCH] vhost: replace % with & on data path "Michael S. Tsirkin" <mst@redhat.com> - 2015-11-30 09:40 +0100
  Re: [PATCH] vhost: replace % with & on data path Joe Perches <joe@perches.com> - 2015-11-30 09:50 +0100
    Re: [PATCH] vhost: replace % with & on data path "Michael S. Tsirkin" <mst@redhat.com> - 2015-11-30 10:30 +0100
  Re: [PATCH] vhost: replace % with & on data path kbuild test robot <lkp@intel.com> - 2015-11-30 10:10 +0100
  Re: [PATCH] vhost: replace % with & on data path "Michael S. Tsirkin" <mst@redhat.com> - 2015-11-30 10:20 +0100
  Re: [PATCH] vhost: replace % with & on data path David Miller <davem@redhat.com> - 2015-11-30 17:20 +0100

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