Provided by:
linux-doc-2.6.15_2.6.15-23.39_all 
NAME
call_rcu - Queue an RCU callback for invocation after a grace period.
SYNOPSIS
void fastcall call_rcu (struct rcu_head * head,
void (*func) <funcparams>struct rcu_head *rcu</funcparams>);
ARGUMENTS
head structure to be used for queueing the RCU updates.
func actual update function to be invoked after the grace period
DESCRIPTION
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. RCU read-side critical sections are
delimited by rcu_read_lock and rcu_read_unlock, and may be nested.