x86_64: Report the pending irq if available in smp_affinity

Andi Kleen · Linus Torvalds · commit 42ee2b74140b · 2007-07-21T18:37:07.000-07:00
Otherwise smp_affinity would only update after the next interrupt
on x86 systems.

Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Ingo Molnar &lt;mingo@elte.hu&gt;
Signed-off-by: Andi Kleen &lt;ak@suse.de&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
@@ -19,7 +19,15 @@ static struct proc_dir_entry *root_irq_dir;
 static int irq_affinity_read_proc(char *page, char **start, off_t off,
 				  int count, int *eof, void *data)
 {
-	int len = cpumask_scnprintf(page, count, irq_desc[(long)data].affinity);
+	struct irq_desc *desc = irq_desc + (long)data;
+	cpumask_t *mask = &desc->affinity;
+	int len;
+
+#ifdef CONFIG_GENERIC_PENDING_IRQ
+	if (desc->status & IRQ_MOVE_PENDING)
+		mask = &desc->pending_mask;
+#endif
+	len = cpumask_scnprintf(page, count, *mask);
 
 	if (count - len < 2)
 		return -EINVAL;
