void rcu_note_might_resched(void)
{
unsigned long flags;
raw_local_irq_save(flags);
rcu_eob(rcu_cpu());
raw_local_irq_restore(flags);
}
/*
* Insert an RCU callback onto the calling CPUs list of 'current batch'
* callbacks. Lockless version, can be invoked anywhere except under NMI.
*/
void call_rcu_sched(struct rcu_head *cb, void (*func)(struct rcu_head *rcu))
{
unsigned long flags;
struct rcu_data *rd;
struct rcu_list *cblist;
int which;
cb->func = func;
cb->next = NULL;
raw_local_irq_save(flags);
smp_mb();
rd = &rcu_data[rcu_cpu()];
which = ACCESS_ONCE(rcu_which);
cblist = &rd->cblist[which];
/* The following is not NMI-safe, therefore call_rcu()
* cannot be invoked under NMI. */
rcu_list_add(cblist, cb);
rd->nqueued++;
smp_mb();
raw_local_irq_restore(flags);
}
void jrcu_read_unlock(void)
{
if (preempt_count() == 1)
rcu_eob(rcu_cpu());
preempt_enable();
}
void __rcu_preempt_sub(void)
{
rcu_eob(rcu_cpu());
}
