Messages in this thread | | | Date | Thu, 20 Sep 2012 10:11:50 +0100 | From | "Jan Beulich" <> | Subject | Re: [Xen-devel] [PATCH] Persistent grant maps for xen blk drivers |
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>>> On 20.09.12 at 10:51, Oliver Chick <oliver.chick@citrix.com> 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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