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authorKazuhiro SUZUKI <kaz@jp.fujitsu.com>2011-02-19 01:43:07 +0300
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-03-16 20:06:29 +0300
commitc7853aea57d8e850b0979e7bdcbcabdcbbdd9e37 (patch)
tree2cfd0f35cdd1a115e672f78653b34fdced4bd251 /drivers/xen/xenbus/xenbus_probe.c
parent76ca07832842100b14a31ad8996dab7b0c28aa42 (diff)
downloadlinux-c7853aea57d8e850b0979e7bdcbcabdcbbdd9e37.tar.xz
xen: xenbus PM events support
Make xenbus frontend device subscribe to PM events to receive suspend/resume/freeze/thaw/restore notifications. Signed-off-by: Kenji Wakamiya <wkenji@jp.fujitsu.com> Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com> Signed-off-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Campbell <ian.campbell@citrix.com> [shriram--minor mods and improved commit message] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.c')
-rw-r--r--drivers/xen/xenbus/xenbus_probe.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index baa65e7fbbc7..739769551e33 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -577,7 +577,7 @@ void xenbus_dev_changed(const char *node, struct xen_bus_type *bus)
}
EXPORT_SYMBOL_GPL(xenbus_dev_changed);
-int xenbus_dev_suspend(struct device *dev, pm_message_t state)
+int xenbus_dev_suspend(struct device *dev)
{
int err = 0;
struct xenbus_driver *drv;
@@ -590,7 +590,7 @@ int xenbus_dev_suspend(struct device *dev, pm_message_t state)
return 0;
drv = to_xenbus_driver(dev->driver);
if (drv->suspend)
- err = drv->suspend(xdev, state);
+ err = drv->suspend(xdev);
if (err)
printk(KERN_WARNING
"xenbus: suspend %s failed: %i\n", dev_name(dev), err);
@@ -642,6 +642,14 @@ int xenbus_dev_resume(struct device *dev)
}
EXPORT_SYMBOL_GPL(xenbus_dev_resume);
+int xenbus_dev_cancel(struct device *dev)
+{
+ /* Do nothing */
+ DPRINTK("cancel");
+ return 0;
+}
+EXPORT_SYMBOL_GPL(xenbus_dev_cancel);
+
/* A flag to determine if xenstored is 'ready' (i.e. has started) */
int xenstored_ready = 0;