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64f7f0510c
Most places in vhost can use __get/__put_user rather than get/put_user since addresses are pre-validated. This should be good for performance, but this also will help make code sparse-clean: get/put_user macros don't play well with __virtioXX bitwise tags. Switch to get/put_user to __ variants everywhere in vhost. There's one exception - for consistency switch that as well, and add an explicit access_ok check. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>