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Re: [Xen-devel] return value checking on multicalls

To: Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] return value checking on multicalls
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 14 Mar 2007 10:02:54 -0700
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Jan Beulich wrote:
> Hmm, that doesn't seem to fit all cases. There are hypercalls that
> return non-errno-like values, and you shouldn't make any
> assumptions about these.

It's been a nice simplification in my work, but I haven't used it with
anything where success > 0, or where I've even cared about results other
than failure.  And the advantage is that the incremental effort of
batching a series of calls is very small.

I just thought it might be useful.  Perhaps the interface could be
extended to be more useful in the cases you're looking at.

    J

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