On Mon, 13 Dec 2010, Jan Kiszka wrote:
> + if (old_action && (old_action->flags & IRQF_ADAPTIVE) &&
> + !(desc->irq_data.drv_status & IRQS_SHARED)) {
> + /*
> + * Signal the old handler that is has to switch to shareable
> + * handling mode. Disable the line to avoid any conflict with
> + * a real IRQ.
> + */
> + disable_irq(irq);
This is weird, really. I thought you wanted to avoid waiting for the
threaded handler to finish if it's on the fly. So this should be
disable_irq_nosync() or did you change your mind ?
Thanks,
tglx
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