xen/multicall: special-case singleton hypercalls
authorJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Sat, 18 Dec 2010 01:32:28 +0000 (17:32 -0800)
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Mon, 18 Jul 2011 22:43:45 +0000 (15:43 -0700)
Singleton calls seem to end up being pretty common, so just
directly call the hypercall rather than going via multicall.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

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