irq_work: Map irq_work_on_queue() to irq_work_on() in !SMP
Commit 4788501606
("irq_work: Implement remote queueing") provides
irq_work_on_queue() only for SMP builds. However, providing it simplifies
code that submits irq_work to lists of CPUs, eliminating the !SMP special
cases. This commit therefore maps irq_work_on_queue() to irq_work_on()
in !SMP builds, but validating the specified CPU.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
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@ -33,10 +33,7 @@ void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *))
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#define DEFINE_IRQ_WORK(name, _f) struct irq_work name = { .func = (_f), }
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bool irq_work_queue(struct irq_work *work);
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#ifdef CONFIG_SMP
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bool irq_work_queue_on(struct irq_work *work, int cpu);
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#endif
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void irq_work_tick(void);
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void irq_work_sync(struct irq_work *work);
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@ -56,7 +56,6 @@ void __weak arch_irq_work_raise(void)
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*/
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}
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#ifdef CONFIG_SMP
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/*
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* Enqueue the irq_work @work on @cpu unless it's already pending
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* somewhere.
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@ -68,6 +67,8 @@ bool irq_work_queue_on(struct irq_work *work, int cpu)
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/* All work should have been flushed before going offline */
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WARN_ON_ONCE(cpu_is_offline(cpu));
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#ifdef CONFIG_SMP
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/* Arch remote IPI send/receive backend aren't NMI safe */
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WARN_ON_ONCE(in_nmi());
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@ -78,10 +79,12 @@ bool irq_work_queue_on(struct irq_work *work, int cpu)
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if (llist_add(&work->llnode, &per_cpu(raised_list, cpu)))
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arch_send_call_function_single_ipi(cpu);
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#else /* #ifdef CONFIG_SMP */
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irq_work_queue(work);
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#endif /* #else #ifdef CONFIG_SMP */
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return true;
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}
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EXPORT_SYMBOL_GPL(irq_work_queue_on);
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#endif
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/* Enqueue the irq work @work on the current CPU */
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bool irq_work_queue(struct irq_work *work)
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