This is a note to let you know that I've just added the patch titled
xen: Use IRQF_FORCE_RESUME
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
xen-use-irqf_force_resume.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From 676dc3cf5bc36a9e129a3ad8fe3bd7b2ebf20f5d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <[email protected]>
Date: Sat, 5 Feb 2011 20:08:59 +0000
Subject: xen: Use IRQF_FORCE_RESUME
From: Thomas Gleixner <[email protected]>
commit 676dc3cf5bc36a9e129a3ad8fe3bd7b2ebf20f5d upstream.
Mark the IRQF_NO_SUSPEND interrupts IRQF_FORCE_RESUME and remove the extra
walk through the interrupt descriptors.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: Stefan Bader <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/xen/events.c | 20 +-------------------
1 file changed, 1 insertion(+), 19 deletions(-)
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -536,7 +536,7 @@ int bind_ipi_to_irqhandler(enum ipi_vect
if (irq < 0)
return irq;
- irqflags |= IRQF_NO_SUSPEND;
+ irqflags |= IRQF_NO_SUSPEND | IRQF_FORCE_RESUME;
retval = request_irq(irq, handler, irqflags, devname, dev_id);
if (retval != 0) {
unbind_from_irq(irq);
@@ -891,7 +891,6 @@ void xen_poll_irq(int irq)
void xen_irq_resume(void)
{
unsigned int cpu, irq, evtchn;
- struct irq_desc *desc;
init_evtchn_cpu_bindings();
@@ -910,23 +909,6 @@ void xen_irq_resume(void)
restore_cpu_virqs(cpu);
restore_cpu_ipis(cpu);
}
-
- /*
- * Unmask any IRQF_NO_SUSPEND IRQs which are enabled. These
- * are not handled by the IRQ core.
- */
- for_each_irq_desc(irq, desc) {
- if (!desc->action || !(desc->action->flags & IRQF_NO_SUSPEND))
- continue;
- if (desc->status & IRQ_DISABLED)
- continue;
-
- evtchn = evtchn_from_irq(irq);
- if (evtchn == -1)
- continue;
-
- unmask_evtchn(evtchn);
- }
}
static struct irq_chip xen_dynamic_chip __read_mostly = {
Patches currently in longterm-queue-2.6.32 which might be from
[email protected] are
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/time-compensate-for-rounding-on-odd-frequency-clocksources.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/xen-use-irqf_force_resume.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/seqlock-don-t-smp_rmb-in-seqlock-reader-spin-loop.patch
/home/gregkh/linux/longterm/longterm-queue-2.6.32/queue-2.6.32/genirq-add-irqf_force_resume.patch
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