linux-kernel - Re: [PATCH] kvm: remove in_range from kvm_io

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Message-ID: <20090624084901.GB22865@redhat.com>
Date:	Wed, 24 Jun 2009 11:49:01 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Gregory Haskins <ghaskins@...ell.com>
Cc:	avi@...hat.com, kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	mtosatti@...hat.com, paulmck@...ux.vnet.ibm.com, markmc@...hat.com
Subject: Re: [PATCH] kvm: remove in_range from kvm_io_device

On Tue, Jun 23, 2009 at 09:43:31PM -0400, Gregory Haskins wrote:
> Michael S. Tsirkin wrote:
> > Remove in_range from kvm_io_device and ask read/write callbacks, if
> > supplied, to perform range checks internally. This allows aliasing
> > (mostly for in-kernel virtio), as well as better error handling by
> > making it possible to pass errors up to userspace. And it's enough to
> > look at the diffstat to see that it's a better API anyway.
> >
> > While we are at it, document locking rules for kvm_io_device.
> >   
> 
> Hi Michael,
> 
> I just tried to apply this to kvm.git/master, and it blew up really
> badly.  What tree should I be using?

Ugh, this is against 2.6.30. I'll post kvm.git version soon.

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