diff options
| -rw-r--r-- | include/linux/interrupt.h | 1 | ||||
| -rw-r--r-- | kernel/irq/affinity.c | 4 | ||||
| -rw-r--r-- | kernel/irq/irqdesc.c | 13 |
3 files changed, 13 insertions, 5 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index c44b7844dc83..c672f34235e7 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -263,6 +263,7 @@ struct irq_affinity { */ struct irq_affinity_desc { struct cpumask mask; + unsigned int is_managed : 1; }; #if defined(CONFIG_SMP) diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c index c0fe591b0dc9..45b68b4ea48b 100644 --- a/kernel/irq/affinity.c +++ b/kernel/irq/affinity.c @@ -289,6 +289,10 @@ irq_create_affinity_masks(int nvecs, const struct irq_affinity *affd) for (; curvec < nvecs; curvec++) cpumask_copy(&masks[curvec].mask, irq_default_affinity); + /* Mark the managed interrupts */ + for (i = affd->pre_vectors; i < nvecs - affd->post_vectors; i++) + masks[i].is_managed = 1; + outnodemsk: free_node_to_cpumask(node_to_cpumask); return masks; diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index cb401d6c5040..ee062b7939d3 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -453,27 +453,30 @@ static int alloc_descs(unsigned int start, unsigned int cnt, int node, struct module *owner) { struct irq_desc *desc; - unsigned int flags; int i; /* Validate affinity mask(s) */ if (affinity) { - for (i = 0; i < cnt; i++) { + for (i = 0; i < cnt; i++, i++) { if (cpumask_empty(&affinity[i].mask)) return -EINVAL; } } - flags = affinity ? IRQD_AFFINITY_MANAGED | IRQD_MANAGED_SHUTDOWN : 0; - for (i = 0; i < cnt; i++) { const struct cpumask *mask = NULL; + unsigned int flags = 0; if (affinity) { - node = cpu_to_node(cpumask_first(affinity)); + if (affinity->is_managed) { + flags = IRQD_AFFINITY_MANAGED | + IRQD_MANAGED_SHUTDOWN; + } mask = &affinity->mask; + node = cpu_to_node(cpumask_first(mask)); affinity++; } + desc = alloc_desc(start + i, node, flags, mask, owner); if (!desc) goto err; |