1 files changed, 23 insertions, 0 deletions

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 7a6eb04ef6b5..fe92dc5190dd 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -147,6 +147,26 @@ static const struct file_operations default_affinity_proc_fops = {
         .release        = single_release,
         .write          = default_affinity_write,
 };
+
+static int irq_node_proc_show(struct seq_file *m, void *v)
+{
+        struct irq_desc *desc = irq_to_desc((long) m->private);
+
+        seq_printf(m, "%d\n", desc->node);
+        return 0;
+}
+
+static int irq_node_proc_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, irq_node_proc_show, PDE(inode)->data);
+}
+
+static const struct file_operations irq_node_proc_fops = {
+        .open           = irq_node_proc_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
 #endif
 
 static int irq_spurious_proc_show(struct seq_file *m, void *v)
@@ -231,6 +251,9 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc)
         /* create /proc/irq/<irq>/smp_affinity */
         proc_create_data("smp_affinity", 0600, desc->dir,
                          &irq_affinity_proc_fops, (void *)(long)irq);
+
+        proc_create_data("node", 0444, desc->dir,
+                         &irq_node_proc_fops, (void *)(long)irq);
 #endif
 
         proc_create_data("spurious", 0444, desc->dir,