Revert "RCU: Joe's RCU"

This reverts commit ef5560cf20d8542959d7cbbb8893f2934b014b89.
Revert "RCU: Joe's RCU"

This reverts commit 3de538ef88b2c25a66f23c5af594d6df39412c6e.
Revert "RCU: Joe's RCU"

This reverts commit 40ee1473bf0f9e49c15b7d843f5d590a55a73acb.
RCU: Joe's RCU

Forward port jRCU to linux-3.0.

Thanks goes to Francisco Franco for his help
in testing out this version on the Android
Galaxy Nexus phone.

Signed-off-by: Joe Korty <joe.korty@ccur.com>
Signed-off-by: Ezekeel <notezekeel@googlemail.com>