call_rcu_bh — Queue an RCU for invocation after a quicker grace period.
void fastcall call_rcu_bh ( | struct rcu_head * | head, |
| void (* | func)
(struct rcu_head *rcu)); |
headstructure to be used for queueing the RCU updates.
funcactual update function to be invoked after the grace period
The update function will be invoked some time after a full grace
period elapses, in other words after all currently executing RCU
read-side critical sections have completed. call_rcu_bh assumes
that the read-side critical sections end on completion of a softirq
handler. This means that read-side critical sections in process
context must not be interrupted by softirqs. This interface is to be
used when most of the read-side critical sections are in softirq context.
RCU read-side critical sections are delimited by rcu_read_lock and
rcu_read_unlock, * if in interrupt context or rcu_read_lock_bh
and rcu_read_unlock_bh, if in process context. These may be nested.