---

yaml --- r: 42708 b: refs/heads/master c: 3592695 h: refs/heads/master v: v3
git-mirror · Dec 7, 2006 · 3d568b9 · 3d568b9
1 parent 054bf44
commit 3d568b9
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Showing 3 changed files with 35 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 074cec54d1049ab580ecd0026623b553e0e270c4
+refs/heads/master: 3592695c363c3f3119621bdcf5ed852d6b9d1a5c
diff --git a/trunk/kernel/power/power.h b/trunk/kernel/power/power.h
@@ -117,7 +117,12 @@ extern void snapshot_free_unused_memory(struct snapshot_handle *handle);
 #define SNAPSHOT_FREE_SWAP_PAGES	_IO(SNAPSHOT_IOC_MAGIC, 9)
 #define SNAPSHOT_SET_SWAP_FILE		_IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int)
 #define SNAPSHOT_S2RAM			_IO(SNAPSHOT_IOC_MAGIC, 11)
-#define SNAPSHOT_IOC_MAXNR	11
+#define SNAPSHOT_PMOPS			_IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
+#define SNAPSHOT_IOC_MAXNR	12
+
+#define PMOPS_PREPARE	1
+#define PMOPS_ENTER	2
+#define PMOPS_FINISH	3
 
 /**
  *	The bitmap is used for tracing allocated swap pages

diff --git a/trunk/kernel/power/user.c b/trunk/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 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 		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;