Please do not top post On Thu, 2016-08-04 at 16:08 +0800, zhuyj wrote: > +void register_checmate_prog_ops(void); > maybe it is extern void register_checmate_prog_ops(void);? > > + preempt_disable(); > + rcu_read_lock(); > IMHO, it is not necessary to use the above 2 since rcu_read_lock will > call preempt_disable.
You might double check if this claim is true if CONFIG_PREEMPT_RCU=y
