linux-kernel - [091/107] xen/timer: Missing IRQF_NO_SUSPEND in timer code broke suspend.

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Message-Id: <20111102221458.463523097@clark.kroah.org>
Date:	Wed, 02 Nov 2011 15:14:57 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Ian Campbell <ian.campbell@...rix.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: [091/107] xen/timer: Missing IRQF_NO_SUSPEND in timer code broke suspend.

2.6.32-longterm review patch.  If anyone has any objections, please let us know.

------------------

From: Ian Campbell <Ian.Campbell@...rix.com>

commit f611f2da99420abc973c32cdbddbf5c365d0a20c upstream.

The patches missed an indirect use of IRQF_NO_SUSPEND pulled in via
IRQF_TIMER. The following patch fixes the issue.

With this fixlet PV guest migration works just fine. I also booted the
entire series as a dom0 kernel and it appeared fine.

Signed-off-by: Ian Campbell <ian.campbell@...rix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 arch/x86/xen/time.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -395,7 +395,9 @@ void xen_setup_timer(int cpu)
 		name = "<timer kasprintf failed>";
 
 	irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
-				      IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER,
+				      IRQF_DISABLED|IRQF_PERCPU|
+				      IRQF_NOBALANCING|IRQF_TIMER|
+				      IRQF_FORCE_RESUME,
 				      name, NULL);
 
 	evt = &per_cpu(xen_clock_events, cpu);


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