diff options
Diffstat (limited to 'kernel/irq/manage.c')
-rw-r--r-- | kernel/irq/manage.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index b0ccd1ac2d6a..89a3ea82569b 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c | |||
@@ -282,7 +282,7 @@ setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask) | |||
282 | { | 282 | { |
283 | struct irq_chip *chip = irq_desc_get_chip(desc); | 283 | struct irq_chip *chip = irq_desc_get_chip(desc); |
284 | struct cpumask *set = irq_default_affinity; | 284 | struct cpumask *set = irq_default_affinity; |
285 | int ret; | 285 | int ret, node = desc->irq_data.node; |
286 | 286 | ||
287 | /* Excludes PER_CPU and NO_BALANCE interrupts */ | 287 | /* Excludes PER_CPU and NO_BALANCE interrupts */ |
288 | if (!irq_can_set_affinity(irq)) | 288 | if (!irq_can_set_affinity(irq)) |
@@ -301,6 +301,13 @@ setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask) | |||
301 | } | 301 | } |
302 | 302 | ||
303 | cpumask_and(mask, cpu_online_mask, set); | 303 | cpumask_and(mask, cpu_online_mask, set); |
304 | if (node != NUMA_NO_NODE) { | ||
305 | const struct cpumask *nodemask = cpumask_of_node(node); | ||
306 | |||
307 | /* make sure at least one of the cpus in nodemask is online */ | ||
308 | if (cpumask_intersects(mask, nodemask)) | ||
309 | cpumask_and(mask, mask, nodemask); | ||
310 | } | ||
304 | ret = chip->irq_set_affinity(&desc->irq_data, mask, false); | 311 | ret = chip->irq_set_affinity(&desc->irq_data, mask, false); |
305 | switch (ret) { | 312 | switch (ret) { |
306 | case IRQ_SET_MASK_OK: | 313 | case IRQ_SET_MASK_OK: |
@@ -645,7 +652,7 @@ static int irq_wait_for_interrupt(struct irqaction *action) | |||
645 | * is marked MASKED. | 652 | * is marked MASKED. |
646 | */ | 653 | */ |
647 | static void irq_finalize_oneshot(struct irq_desc *desc, | 654 | static void irq_finalize_oneshot(struct irq_desc *desc, |
648 | struct irqaction *action, bool force) | 655 | struct irqaction *action) |
649 | { | 656 | { |
650 | if (!(desc->istate & IRQS_ONESHOT)) | 657 | if (!(desc->istate & IRQS_ONESHOT)) |
651 | return; | 658 | return; |
@@ -679,7 +686,7 @@ again: | |||
679 | * we would clear the threads_oneshot bit of this thread which | 686 | * we would clear the threads_oneshot bit of this thread which |
680 | * was just set. | 687 | * was just set. |
681 | */ | 688 | */ |
682 | if (!force && test_bit(IRQTF_RUNTHREAD, &action->thread_flags)) | 689 | if (test_bit(IRQTF_RUNTHREAD, &action->thread_flags)) |
683 | goto out_unlock; | 690 | goto out_unlock; |
684 | 691 | ||
685 | desc->threads_oneshot &= ~action->thread_mask; | 692 | desc->threads_oneshot &= ~action->thread_mask; |
@@ -739,7 +746,7 @@ irq_forced_thread_fn(struct irq_desc *desc, struct irqaction *action) | |||
739 | 746 | ||
740 | local_bh_disable(); | 747 | local_bh_disable(); |
741 | ret = action->thread_fn(action->irq, action->dev_id); | 748 | ret = action->thread_fn(action->irq, action->dev_id); |
742 | irq_finalize_oneshot(desc, action, false); | 749 | irq_finalize_oneshot(desc, action); |
743 | local_bh_enable(); | 750 | local_bh_enable(); |
744 | return ret; | 751 | return ret; |
745 | } | 752 | } |
@@ -755,7 +762,7 @@ static irqreturn_t irq_thread_fn(struct irq_desc *desc, | |||
755 | irqreturn_t ret; | 762 | irqreturn_t ret; |
756 | 763 | ||
757 | ret = action->thread_fn(action->irq, action->dev_id); | 764 | ret = action->thread_fn(action->irq, action->dev_id); |
758 | irq_finalize_oneshot(desc, action, false); | 765 | irq_finalize_oneshot(desc, action); |
759 | return ret; | 766 | return ret; |
760 | } | 767 | } |
761 | 768 | ||
@@ -844,7 +851,7 @@ void exit_irq_thread(void) | |||
844 | wake_threads_waitq(desc); | 851 | wake_threads_waitq(desc); |
845 | 852 | ||
846 | /* Prevent a stale desc->threads_oneshot */ | 853 | /* Prevent a stale desc->threads_oneshot */ |
847 | irq_finalize_oneshot(desc, action, true); | 854 | irq_finalize_oneshot(desc, action); |
848 | } | 855 | } |
849 | 856 | ||
850 | static void irq_setup_forced_threading(struct irqaction *new) | 857 | static void irq_setup_forced_threading(struct irqaction *new) |