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-rw-r--r--kernel/irq/chip.c48
1 files changed, 20 insertions, 28 deletions
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index f10c2e58a786..6baf86085571 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -342,6 +342,13 @@ static bool irq_check_poll(struct irq_desc *desc)
342 return irq_wait_for_poll(desc); 342 return irq_wait_for_poll(desc);
343} 343}
344 344
345static bool irq_may_run(struct irq_desc *desc)
346{
347 if (!irqd_irq_inprogress(&desc->irq_data))
348 return true;
349 return irq_check_poll(desc);
350}
351
345/** 352/**
346 * handle_simple_irq - Simple and software-decoded IRQs. 353 * handle_simple_irq - Simple and software-decoded IRQs.
347 * @irq: the interrupt number 354 * @irq: the interrupt number
@@ -359,9 +366,8 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
359{ 366{
360 raw_spin_lock(&desc->lock); 367 raw_spin_lock(&desc->lock);
361 368
362 if (unlikely(irqd_irq_inprogress(&desc->irq_data))) 369 if (!irq_may_run(desc))
363 if (!irq_check_poll(desc)) 370 goto out_unlock;
364 goto out_unlock;
365 371
366 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 372 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
367 kstat_incr_irqs_this_cpu(irq, desc); 373 kstat_incr_irqs_this_cpu(irq, desc);
@@ -412,9 +418,8 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
412 raw_spin_lock(&desc->lock); 418 raw_spin_lock(&desc->lock);
413 mask_ack_irq(desc); 419 mask_ack_irq(desc);
414 420
415 if (unlikely(irqd_irq_inprogress(&desc->irq_data))) 421 if (!irq_may_run(desc))
416 if (!irq_check_poll(desc)) 422 goto out_unlock;
417 goto out_unlock;
418 423
419 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 424 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
420 kstat_incr_irqs_this_cpu(irq, desc); 425 kstat_incr_irqs_this_cpu(irq, desc);
@@ -485,9 +490,8 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
485 490
486 raw_spin_lock(&desc->lock); 491 raw_spin_lock(&desc->lock);
487 492
488 if (unlikely(irqd_irq_inprogress(&desc->irq_data))) 493 if (!irq_may_run(desc))
489 if (!irq_check_poll(desc)) 494 goto out;
490 goto out;
491 495
492 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 496 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
493 kstat_incr_irqs_this_cpu(irq, desc); 497 kstat_incr_irqs_this_cpu(irq, desc);
@@ -541,16 +545,10 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
541 545
542 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 546 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
543 547
544 /* 548 if (!irq_may_run(desc)) {
545 * If the handler is currently running, mark it pending, 549 desc->istate |= IRQS_PENDING;
546 * handle the necessary masking and go out 550 mask_ack_irq(desc);
547 */ 551 goto out_unlock;
548 if (unlikely(irqd_irq_inprogress(&desc->irq_data))) {
549 if (!irq_check_poll(desc)) {
550 desc->istate |= IRQS_PENDING;
551 mask_ack_irq(desc);
552 goto out_unlock;
553 }
554 } 552 }
555 553
556 /* 554 /*
@@ -612,15 +610,9 @@ void handle_edge_eoi_irq(unsigned int irq, struct irq_desc *desc)
612 610
613 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING); 611 desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
614 612
615 /* 613 if (!irq_may_run(desc)) {
616 * If the handler is currently running, mark it pending, 614 desc->istate |= IRQS_PENDING;
617 * handle the necessary masking and go out 615 goto out_eoi;
618 */
619 if (unlikely(irqd_irq_inprogress(&desc->irq_data))) {
620 if (!irq_check_poll(desc)) {
621 desc->istate |= IRQS_PENDING;
622 goto out_eoi;
623 }
624 } 616 }
625 617
626 /* 618 /*