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