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

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Message-ID: <20151130112043-mutt-send-email-mst@redhat.com>
Date:	Mon, 30 Nov 2015 11:21:32 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Joe Perches <joe@...ches.com>
Cc:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH] vhost: replace % with & on data path

On Mon, Nov 30, 2015 at 12:42:49AM -0800, Joe Perches wrote:
> 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();
> >  
> > +	}
> 
> ?

Yes, I noticed this - I moved this chunk from the next patch
in my tree by mistake.

Will fix, thanks!

-- 
MST
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