> That's true, but we are talking about software state so in some sense
> it might be better that the affinity-to-be is reported to the user in
> this case.
>
> Delayed register updates are an implementation detail the user does
> not need to know about here.
This patch should fix it.
-Andi
Report the pending irq if available in smp_affinity
Otherwise smp_affinity would only update after the next interrupt
on x86 systems.
Cc: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
Index: linux/kernel/irq/proc.c
===================================================================
--- linux.orig/kernel/irq/proc.c
+++ linux/kernel/irq/proc.c
@@ -19,7 +19,14 @@ static struct proc_dir_entry *root_irq_d
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;
-
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