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Diffstat (limited to 'kernel/irq')
-rw-r--r--kernel/irq/manage.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index bf606a53a21c..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: