rcu_dereference_bh_check  826 include/linux/rcupdate.h #define rcu_dereference_bh(p) rcu_dereference_bh_check(p, 0)
rcu_dereference_bh_check   57 include/linux/rtnetlink.h 	rcu_dereference_bh_check(p, lockdep_rtnl_is_held())