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From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: LKML <linux-kernel@vger.kernel.org>,
	xen-devel <xen-devel@lists.xensource.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Rafael J. Wysocki" <rjw@sisk.pl>
Subject: [PATCH 12 of 12] hrtimer: remove warning in hres_timers_resume
Date: Fri, 23 May 2008 14:41:19 +0100	[thread overview]
Message-ID: <34ec53e89a83ff58aa51.1211550079@localhost> (raw)
In-Reply-To: <patchbomb.1211550067@localhost>

hres_timers_resume() warns if there appears to be more than one cpu
online.  This warning makes sense when the suspend/resume mechanism
offlines all cpus but one during the suspend/resume process.

However, Xen suspend does not need to offline the other cpus; it
merely keeps them tied up in stop_machine() while the virtual machine
is suspended.  The warning hres_timers_resume issues is therefore
spurious.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
---
 kernel/hrtimer.c |    2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -632,8 +632,6 @@
  */
 void hres_timers_resume(void)
 {
-	WARN_ON_ONCE(num_online_cpus() > 1);
-
 	/* Retrigger the CPU local events: */
 	retrigger_next_event(NULL);
 }



      parent reply	other threads:[~2008-05-23 13:47 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-23 13:41 [PATCH 00 of 12] xen: add save/restore/migrate for Xen domains Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 01 of 12] xen: make phys_to_machine structure dynamic Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 02 of 12] xen: add configurable max domain size Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 03 of 12] xen: efficiently support a holey p2m table Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 04 of 12] xen: make dummy_shared_info non-static Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 05 of 12] xen: add p2m mfn_list_list Jeremy Fitzhardinge
2008-05-28 12:28   ` [bisected] " Ingo Molnar
2008-05-28 14:02     ` Jeremy Fitzhardinge
2008-05-28 14:10       ` Sam Ravnborg
2008-06-02 10:10       ` Ingo Molnar
2008-06-02 13:12         ` Jeremy Fitzhardinge
2008-05-30  7:40     ` Gerd Hoffmann
2008-05-30  8:04       ` Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 06 of 12] xen: add rebind_evtchn_irq Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 07 of 12] xen: fix unbind_from_irq() Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 08 of 12] xen-console: add save/restore Jeremy Fitzhardinge
2008-06-02 11:17   ` Ingo Molnar
2008-06-02 11:18     ` Ingo Molnar
2008-06-02 11:50     ` Jeremy Fitzhardinge
2008-06-02 12:13     ` [Xen-devel] " Markus Armbruster
2008-05-23 13:41 ` [PATCH 09 of 12] xenbus: rebind irq on restore Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 10 of 12] xen: implement save/restore Jeremy Fitzhardinge
2008-05-29  7:31   ` Ingo Molnar
2008-05-29  8:00     ` Jeremy Fitzhardinge
2008-05-29  8:02     ` [PATCH] xen: fix compilation when CONFIG_PM_SLEEP is disabled Jeremy Fitzhardinge
2008-05-30  0:24       ` Randy Dunlap
2008-06-02 10:13         ` Ingo Molnar
2008-06-02  9:21   ` [Xen-devel] [PATCH 10 of 12] xen: implement save/restore Isaku Yamahata
2008-06-02 10:03     ` Jeremy Fitzhardinge
2008-06-02 10:47       ` Isaku Yamahata
2008-06-02 10:52         ` Jeremy Fitzhardinge
2008-05-23 13:41 ` [PATCH 11 of 12] xen: maintain clock offset over save/restore Jeremy Fitzhardinge
2008-05-23 13:41 ` Jeremy Fitzhardinge [this message]

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