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There is no need to use interlocked updates when the rcp lock is held. Therefore the simple bitops variants can be used. This should improve performance. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>