x86/paravirt: use percpu_ rather than __get_cpu_var

Impact: minor optimisation

percpu_read/write is a slightly more direct way of getting
to percpu data.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Jeremy Fitzhardinge 2009-02-18 00:18:50 -08:00
commit ab2f75f0b7