Re: [Xen-devel] [PATCH] Persistent grant maps for xen blkdrivers

From: Jan Beulich
Date: Thu Sep 20 2012 - 05:11:25 EST


>>> On 20.09.12 at 10:51, Oliver Chick <oliver.chick@xxxxxxxxxx> wrote:
> Ah yes, you're right - rings can accomodate 64 requests. ijc, and myself
> got muddled. It also explains the comment in my summary that we only use
> the first 60-ish persistent grants!
>
> With multipage rings, this will probably become a function, rather than
> a constant. Does that sound sensible?

Yes, that's what I was expecting. Whether a separate function/
macro is necessary is unclear, as it's simply __RING_SIZE().

Jan

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