Re: [Xen-devel] [PATCH] Prevent unnatural use of ioctl in /proc/xen/xenbus_dev

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 9 Sep 2005, at 12:29, Rusty Russell wrote:

> xenbus_dev's use of ioctl for read/write is a crime against nature.
> Make it a read-write interface, but check boundaries so we can recover 
> if userspace dies.  This also simplifies libxenstore.
How can you cleanly express the request/reponse nature of interacting 
with xenstore, and grouping of accesses into transactions, via 
read/write? I would imagine you lose valuable framing information that 
you end up having to reconstruct.
 -- Keir


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