schedule

[sri ram vemulpali <kishore.kernelmm.dev@xxxxxxxxx>]

Hi all,

     Can anyone explain what is struct rcu_data and what does it store.

/*
 * Note a quiescent state.  Because we do not need to know
 * how many quiescent states passed, just if there was at least
 * one since the start of the grace period, this just sets a flag.
 */
void rcu_sched_qs(int cpu)
{
        struct rcu_data *rdp;

        rdp = &per_cpu(rcu_sched_data, cpu);
        rdp->passed_quiesc_completed = rdp->completed;
        barrier();
        rdp->passed_quiesc = 1;
        rcu_preempt_note_context_switch(cpu);
}

which is in kernel/rcu_tree.c 

Thanks in advance.

S