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Anson Huang authored
Add work around to the reboot issue of SMP, with SMP, all the CPUs need to do _rcu_barrier, if we enqueue an rcu callback, we need to make sure CPU tick to stay alive until we take care of those by completing the appropriate grace period. This work around only work when the reboot command issue, so it didn't impact normal kernel feature. Signed-off-by: Anson Huang <b20788@freescale.com>
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