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-rw-r--r--drivers/xen/manage.c9
-rw-r--r--drivers/xen/xenbus/xenbus_probe.c37
-rw-r--r--drivers/xen/xenbus/xenbus_xs.c2
3 files changed, 15 insertions, 33 deletions
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index b703dd2c9f11..5269bb4d2496 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -104,9 +104,8 @@ static void do_suspend(void)
104 goto out; 104 goto out;
105 } 105 }
106 106
107 printk("suspending xenbus...\n"); 107 printk(KERN_DEBUG "suspending xenstore...\n");
108 /* XXX use normal device tree? */ 108 xs_suspend();
109 xenbus_suspend();
110 109
111 err = stop_machine(xen_suspend, &cancelled, cpumask_of(0)); 110 err = stop_machine(xen_suspend, &cancelled, cpumask_of(0));
112 if (err) { 111 if (err) {
@@ -116,9 +115,9 @@ static void do_suspend(void)
116 115
117 if (!cancelled) { 116 if (!cancelled) {
118 xen_arch_resume(); 117 xen_arch_resume();
119 xenbus_resume(); 118 xs_resume();
120 } else 119 } else
121 xenbus_suspend_cancel(); 120 xs_suspend_cancel();
122 121
123 device_resume(PMSG_RESUME); 122 device_resume(PMSG_RESUME);
124 123
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index bd20361fb099..4649213bed9e 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -71,6 +71,9 @@ static int xenbus_probe_frontend(const char *type, const char *name);
71 71
72static void xenbus_dev_shutdown(struct device *_dev); 72static void xenbus_dev_shutdown(struct device *_dev);
73 73
74static int xenbus_dev_suspend(struct device *dev, pm_message_t state);
75static int xenbus_dev_resume(struct device *dev);
76
74/* If something in array of ids matches this device, return it. */ 77/* If something in array of ids matches this device, return it. */
75static const struct xenbus_device_id * 78static const struct xenbus_device_id *
76match_device(const struct xenbus_device_id *arr, struct xenbus_device *dev) 79match_device(const struct xenbus_device_id *arr, struct xenbus_device *dev)
@@ -188,6 +191,9 @@ static struct xen_bus_type xenbus_frontend = {
188 .remove = xenbus_dev_remove, 191 .remove = xenbus_dev_remove,
189 .shutdown = xenbus_dev_shutdown, 192 .shutdown = xenbus_dev_shutdown,
190 .dev_attrs = xenbus_dev_attrs, 193 .dev_attrs = xenbus_dev_attrs,
194
195 .suspend = xenbus_dev_suspend,
196 .resume = xenbus_dev_resume,
191 }, 197 },
192}; 198};
193 199
@@ -669,7 +675,7 @@ static struct xenbus_watch fe_watch = {
669 .callback = frontend_changed, 675 .callback = frontend_changed,
670}; 676};
671 677
672static int suspend_dev(struct device *dev, void *data) 678static int xenbus_dev_suspend(struct device *dev, pm_message_t state)
673{ 679{
674 int err = 0; 680 int err = 0;
675 struct xenbus_driver *drv; 681 struct xenbus_driver *drv;
@@ -682,14 +688,14 @@ static int suspend_dev(struct device *dev, void *data)
682 drv = to_xenbus_driver(dev->driver); 688 drv = to_xenbus_driver(dev->driver);
683 xdev = container_of(dev, struct xenbus_device, dev); 689 xdev = container_of(dev, struct xenbus_device, dev);
684 if (drv->suspend) 690 if (drv->suspend)
685 err = drv->suspend(xdev); 691 err = drv->suspend(xdev, state);
686 if (err) 692 if (err)
687 printk(KERN_WARNING 693 printk(KERN_WARNING
688 "xenbus: suspend %s failed: %i\n", dev_name(dev), err); 694 "xenbus: suspend %s failed: %i\n", dev_name(dev), err);
689 return 0; 695 return 0;
690} 696}
691 697
692static int resume_dev(struct device *dev, void *data) 698static int xenbus_dev_resume(struct device *dev)
693{ 699{
694 int err; 700 int err;
695 struct xenbus_driver *drv; 701 struct xenbus_driver *drv;
@@ -734,31 +740,6 @@ static int resume_dev(struct device *dev, void *data)
734 return 0; 740 return 0;
735} 741}
736 742
737void xenbus_suspend(void)
738{
739 DPRINTK("");
740
741 bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, suspend_dev);
742 xenbus_backend_suspend(suspend_dev);
743 xs_suspend();
744}
745EXPORT_SYMBOL_GPL(xenbus_suspend);
746
747void xenbus_resume(void)
748{
749 xb_init_comms();
750 xs_resume();
751 bus_for_each_dev(&xenbus_frontend.bus, NULL, NULL, resume_dev);
752 xenbus_backend_resume(resume_dev);
753}
754EXPORT_SYMBOL_GPL(xenbus_resume);
755
756void xenbus_suspend_cancel(void)
757{
758 xs_suspend_cancel();
759}
760EXPORT_SYMBOL_GPL(xenbus_suspend_cancel);
761
762/* A flag to determine if xenstored is 'ready' (i.e. has started) */ 743/* A flag to determine if xenstored is 'ready' (i.e. has started) */
763int xenstored_ready = 0; 744int xenstored_ready = 0;
764 745
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index e325eab4724d..eab33f1dbdf7 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -673,6 +673,8 @@ void xs_resume(void)
673 struct xenbus_watch *watch; 673 struct xenbus_watch *watch;
674 char token[sizeof(watch) * 2 + 1]; 674 char token[sizeof(watch) * 2 + 1];
675 675
676 xb_init_comms();
677
676 mutex_unlock(&xs_state.response_mutex); 678 mutex_unlock(&xs_state.response_mutex);
677 mutex_unlock(&xs_state.request_mutex); 679 mutex_unlock(&xs_state.request_mutex);
678 up_write(&xs_state.transaction_mutex); 680 up_write(&xs_state.transaction_mutex);