Sepherosa Ziehau 51f6f18c88 hyperv/vmbus: Avoid extra copy of page information.
The page information array could contain up to 32 elements (i.e. 512B).
And on network side w/ TSO, 11+ (176B+) elements, i.e. ~44K TSO packet,
in the page information array is quite common.

This saves us some cpu cycles.

Reviewed by:		adrian, delphij
Approved by:		adrian (mentor)
Sponsored by:		Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D4992
2016-01-25 05:33:18 +00:00
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