bool mce_intel_cmci_poll(void)
{
if (__this_cpu_read(cmci_storm_state) == CMCI_STORM_NONE)
return false;
/*
* Reset the counter if we've logged an error in the last poll
* during the storm.
*/
if (machine_check_poll(0, this_cpu_ptr(&mce_banks_owned)))
this_cpu_write(cmci_backoff_cnt, INITIAL_CHECK_INTERVAL);
else
this_cpu_dec(cmci_backoff_cnt);
return true;
}
/*
* Removes the count for the old reader from the appropriate per-CPU
* element of the srcu_struct. Note that this may well be a different
* CPU than that which was incremented by the corresponding srcu_read_lock().
* Must be called from process context.
*/
void __srcu_read_unlock(struct srcu_struct *sp, int idx)
{
smp_mb(); /* C */ /* Avoid leaking the critical section. */
this_cpu_dec(sp->per_cpu_ref->c[idx]);
}
