irq: Make sure irq_desc for legacy irq get correct node setting

when there is no ram on node 0.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
LKML-Reference: <4A95C32D.5040605@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 065205b..a81cf80 100644 (file)
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -161,7 +161,7 @@ int __init early_irq_init(void)
 
        desc = irq_desc_legacy;
        legacy_count = ARRAY_SIZE(irq_desc_legacy);
-       node = first_online_node;
+       node = first_online_node;
 
        /* allocate irq_desc_ptrs array based on nr_irqs */
        irq_desc_ptrs = kcalloc(nr_irqs, sizeof(void *), GFP_NOWAIT);
@@ -172,6 +172,9 @@ int __init early_irq_init(void)
 
        for (i = 0; i < legacy_count; i++) {
                desc[i].irq = i;
+#ifdef CONFIG_SMP
+               desc[i].node = node;
+#endif
                desc[i].kstat_irqs = kstat_irqs_legacy + i * nr_cpu_ids;
                lockdep_set_class(&desc[i].lock, &irq_desc_lock_class);
                alloc_desc_masks(&desc[i], node, true);