linux-kernel - [PATCH v2 1/6] xen: no need to delay xen_setup_shutdown

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Message-Id: <1298653920-20299-1-git-send-email-stefano.stabellini@eu.citrix.com>
Date:	Fri, 25 Feb 2011 17:11:55 +0000
From:	stefano.stabellini@...citrix.com
To:	linux-kernel@...r.kernel.org
Cc:	xen-devel@...ts.xensource.com, Jeremy.Fitzhardinge@...rix.com,
	konrad.wilk@...cle.com, Stefano.Stabellini@...citrix.com,
	Stefano Stabellini <stefano.stabellini@...citrix.com>
Subject: [PATCH v2 1/6] xen: no need to delay xen_setup_shutdown_event for hvm guests anymore

From: Stefano Stabellini <stefano.stabellini@...citrix.com>

Now that xenstore_ready is used correctly for PV on HVM guests too, we
don't need to delay the initialization of xen_setup_shutdown_event
anymore.

Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
Acked-by: Jeremy Fitzhardinge <jeremy@...p.org>
---
 drivers/xen/manage.c       |   17 ++++-------------
 drivers/xen/platform-pci.c |    3 ---
 2 files changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 2417727..b2a8d78 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -291,27 +291,18 @@ static int shutdown_event(struct notifier_block *notifier,
 	return NOTIFY_DONE;
 }
 
-static int __init __setup_shutdown_event(void)
-{
-	/* Delay initialization in the PV on HVM case */
-	if (xen_hvm_domain())
-		return 0;
-
-	if (!xen_pv_domain())
-		return -ENODEV;
-
-	return xen_setup_shutdown_event();
-}
-
 int xen_setup_shutdown_event(void)
 {
 	static struct notifier_block xenstore_notifier = {
 		.notifier_call = shutdown_event
 	};
+
+	if (!xen_domain())
+		return -ENODEV;
 	register_xenstore_notifier(&xenstore_notifier);
 
 	return 0;
 }
 EXPORT_SYMBOL_GPL(xen_setup_shutdown_event);
 
-subsys_initcall(__setup_shutdown_event);
+subsys_initcall(xen_setup_shutdown_event);
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index afbe041..319dd0a 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -156,9 +156,6 @@ static int __devinit platform_pci_init(struct pci_dev *pdev,
 	if (ret)
 		goto out;
 	xenbus_probe(NULL);
-	ret = xen_setup_shutdown_event();
-	if (ret)
-		goto out;
 	return 0;
 
 out:
-- 
1.5.6.5

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