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-rw-r--r--kernel/irq/manage.c19
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)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct cpumask *set = irq_default_affinity;
- int ret;
+ int ret, node = desc->irq_data.node;
/* Excludes PER_CPU and NO_BALANCE interrupts */
if (!irq_can_set_affinity(irq))
@@ -301,6 +301,13 @@ setup_affinity(unsigned int irq, struct irq_desc *desc, struct cpumask *mask)
}
cpumask_and(mask, cpu_online_mask, set);
+ if (node != NUMA_NO_NODE) {
+ const struct cpumask *nodemask = cpumask_of_node(node);
+
+ /* make sure at least one of the cpus in nodemask is online */
+ if (cpumask_intersects(mask, nodemask))
+ cpumask_and(mask, mask, nodemask);
+ }
ret = chip->irq_set_affinity(&desc->irq_data, mask, false);
switch (ret) {
case IRQ_SET_MASK_OK:
@@ -645,7 +652,7 @@ static int irq_wait_for_interrupt(struct irqaction *action)
* is marked MASKED.
*/
static void irq_finalize_oneshot(struct irq_desc *desc,
- struct irqaction *action, bool force)
+ struct irqaction *action)
{
if (!(desc->istate & IRQS_ONESHOT))
return;
@@ -679,7 +686,7 @@ again:
* we would clear the threads_oneshot bit of this thread which
* was just set.
*/
- if (!force && test_bit(IRQTF_RUNTHREAD, &action->thread_flags))
+ if (test_bit(IRQTF_RUNTHREAD, &action->thread_flags))
goto out_unlock;
desc->threads_oneshot &= ~action->thread_mask;
@@ -739,7 +746,7 @@ irq_forced_thread_fn(struct irq_desc *desc, struct irqaction *action)
local_bh_disable();
ret = action->thread_fn(action->irq, action->dev_id);
- irq_finalize_oneshot(desc, action, false);
+ irq_finalize_oneshot(desc, action);
local_bh_enable();
return ret;
}
@@ -755,7 +762,7 @@ static irqreturn_t irq_thread_fn(struct irq_desc *desc,
irqreturn_t ret;
ret = action->thread_fn(action->irq, action->dev_id);
- irq_finalize_oneshot(desc, action, false);
+ irq_finalize_oneshot(desc, action);
return ret;
}
@@ -844,7 +851,7 @@ void exit_irq_thread(void)
wake_threads_waitq(desc);
/* Prevent a stale desc->threads_oneshot */
- irq_finalize_oneshot(desc, action, true);
+ irq_finalize_oneshot(desc, action);
}
static void irq_setup_forced_threading(struct irqaction *new)