Messages in this thread | | | Date | Mon, 27 Oct 2008 22:43:29 +1100 | From | Jeremy Fitzhardinge <> | Subject | Re: [PATCH 2/2] x86: replace BIO_VMERGE_BOUNDARY with BIOVEC_PHYS_MERGEABLE |
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Jens Axboe wrote: > Pretty much baffles me as well, xen should just need to do > > #define BIOVEC_PHYS_MERGEABLE(vec1, vec2) 0 >
It needs to be a runtime switch, since we only want to do this when actually running under Xen. Also, its possible that the two pages might actually be physically contiguous, so they could be merged anyway.
J
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