C++ (Cpp) rcu_bh_qsctr_incの例

コード例 #1

ファイル: rcupdate.c プロジェクト: Voskrese/mipsonqemu

void rcu_check_callbacks(int cpu, int user)
{
	if (user || 
	    (idle_cpu(cpu) && !in_softirq() && 
				hardirq_count() <= (1 << HARDIRQ_SHIFT))) {
		rcu_qsctr_inc(cpu);
		rcu_bh_qsctr_inc(cpu);
	} else if (!in_softirq())
		rcu_bh_qsctr_inc(cpu);
	tasklet_schedule(&per_cpu(rcu_tasklet, cpu));
}

コード例 #2

ファイル: rcutiny.c プロジェクト: maxzoel/FreeXperia

/*
 * Check to see if the scheduling-clock interrupt came from an extended
 * quiescent state, and, if so, tell RCU about it.
 */
void rcu_check_callbacks(int cpu, int user)
{
	if (!rcu_needs_cpu(0))
		return;	/* RCU doesn't need anything to be done. */
	if (user ||
	    (idle_cpu(cpu) &&
	     !in_softirq() &&
	     hardirq_count() <= (1 << HARDIRQ_SHIFT)))
		rcu_qsctr_inc(cpu);
	else if (!in_softirq())
		rcu_bh_qsctr_inc(cpu);
}

コード例 #3

ファイル: softirq.c プロジェクト: Mr-Aloof/wl500g

asmlinkage void __do_softirq(void)
{
	struct softirq_action *h;
	__u32 pending;
	int max_restart = MAX_SOFTIRQ_RESTART;
	int cpu;

	pending = local_softirq_pending();
	account_system_vtime(current);

	__local_bh_disable((unsigned long)__builtin_return_address(0));
	trace_softirq_enter();

	cpu = smp_processor_id();
restart:
	/* Reset the pending bitmask before enabling irqs */
	set_softirq_pending(0);

	local_irq_enable();

	h = softirq_vec;

	do {
		if (pending & 1) {
			kstat_incr_softirqs_this_cpu(h - softirq_vec);
			h->action(h);
			rcu_bh_qsctr_inc(cpu);
		}
		h++;
		pending >>= 1;
	} while (pending);

	local_irq_disable();

	pending = local_softirq_pending();
	if (pending && --max_restart)
		goto restart;

	if (pending)
		wakeup_softirqd();

	trace_softirq_exit();

	account_system_vtime(current);
	_local_bh_enable();
}

コード例 #4

asmlinkage void __do_softirq(void)
{
    struct softirq_action *h;
    __u32 pending;
    int max_restart = MAX_SOFTIRQ_RESTART;
    int cpu;

    pending = local_softirq_pending();

    local_bh_disable();
    cpu = smp_processor_id();
restart:
    /* Reset the pending bitmask before enabling irqs */
    set_softirq_pending(0);

    local_irq_enable();

    h = softirq_vec;

    do {
        if (pending & 1) {
            trace_kernel_soft_irq_entry((void*)(h - softirq_vec));
            h->action(h);
            trace_kernel_soft_irq_exit((void*)(h - softirq_vec));
            rcu_bh_qsctr_inc(cpu);
        }
        h++;
        pending >>= 1;
    } while (pending);

    local_irq_disable();

    pending = local_softirq_pending();
    if (pending && --max_restart)
        goto restart;

    if (pending)
        wakeup_softirqd();

    __local_bh_enable();
}