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-rw-r--r--kernel/power/user.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c
index d991d3b0e5a4..4c24ca5d62e3 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -11,6 +11,7 @@
#include <linux/suspend.h>
#include <linux/syscalls.h>
+#include <linux/reboot.h>
#include <linux/string.h>
#include <linux/device.h>
#include <linux/miscdevice.h>
@@ -313,6 +314,33 @@ OutS3:
up(&pm_sem);
break;
+ case SNAPSHOT_PMOPS:
+ switch (arg) {
+
+ case PMOPS_PREPARE:
+ if (pm_ops->prepare) {
+ error = pm_ops->prepare(PM_SUSPEND_DISK);
+ }
+ break;
+
+ case PMOPS_ENTER:
+ kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
+ error = pm_ops->enter(PM_SUSPEND_DISK);
+ break;
+
+ case PMOPS_FINISH:
+ if (pm_ops && pm_ops->finish) {
+ pm_ops->finish(PM_SUSPEND_DISK);
+ }
+ break;
+
+ default:
+ printk(KERN_ERR "SNAPSHOT_PMOPS: invalid argument %ld\n", arg);
+ error = -EINVAL;
+
+ }
+ break;
+
default:
error = -ENOTTY;