1 files changed, 53 insertions, 37 deletions

diff --git a/kernel/power/power.h b/kernel/power/power.h
index 2093c3a9a994..700f44ec8406 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -1,5 +1,7 @@
 #include <linux/suspend.h>
+#include <linux/suspend_ioctls.h>
 #include <linux/utsname.h>
+#include <linux/freezer.h>
 
 struct swsusp_info {
         struct new_utsname      uts;
@@ -128,42 +130,12 @@ struct snapshot_handle {
 #define data_of(handle) ((handle).buffer + (handle).buf_offset)
 
 extern unsigned int snapshot_additional_pages(struct zone *zone);
+extern unsigned long snapshot_get_image_size(void);
 extern int snapshot_read_next(struct snapshot_handle *handle, size_t count);
 extern int snapshot_write_next(struct snapshot_handle *handle, size_t count);
 extern void snapshot_write_finalize(struct snapshot_handle *handle);
 extern int snapshot_image_loaded(struct snapshot_handle *handle);
 
-/*
- * This structure is used to pass the values needed for the identification
- * of the resume swap area from a user space to the kernel via the
- * SNAPSHOT_SET_SWAP_AREA ioctl
- */
-struct resume_swap_area {
-        loff_t offset;
-        u_int32_t dev;
-} __attribute__((packed));
-
-#define SNAPSHOT_IOC_MAGIC      '3'
-#define SNAPSHOT_FREEZE                 _IO(SNAPSHOT_IOC_MAGIC, 1)
-#define SNAPSHOT_UNFREEZE               _IO(SNAPSHOT_IOC_MAGIC, 2)
-#define SNAPSHOT_ATOMIC_SNAPSHOT        _IOW(SNAPSHOT_IOC_MAGIC, 3, void *)
-#define SNAPSHOT_ATOMIC_RESTORE         _IO(SNAPSHOT_IOC_MAGIC, 4)
-#define SNAPSHOT_FREE                   _IO(SNAPSHOT_IOC_MAGIC, 5)
-#define SNAPSHOT_SET_IMAGE_SIZE         _IOW(SNAPSHOT_IOC_MAGIC, 6, unsigned long)
-#define SNAPSHOT_AVAIL_SWAP             _IOR(SNAPSHOT_IOC_MAGIC, 7, void *)
-#define SNAPSHOT_GET_SWAP_PAGE          _IOR(SNAPSHOT_IOC_MAGIC, 8, void *)
-#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_PMOPS                  _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
-#define SNAPSHOT_SET_SWAP_AREA          _IOW(SNAPSHOT_IOC_MAGIC, 13, \
-                                                        struct resume_swap_area)
-#define SNAPSHOT_IOC_MAXNR      13
-
-#define PMOPS_PREPARE   1
-#define PMOPS_ENTER     2
-#define PMOPS_FINISH    3
-
 /* If unset, the snapshot device cannot be open. */
 extern atomic_t snapshot_device_available;
 
@@ -181,7 +153,6 @@ extern int swsusp_swap_in_use(void);
 extern int swsusp_check(void);
 extern int swsusp_shrink_memory(void);
 extern void swsusp_free(void);
-extern int swsusp_resume(void);
 extern int swsusp_read(unsigned int *flags_p);
 extern int swsusp_write(unsigned int flags);
 extern void swsusp_close(void);
@@ -201,11 +172,56 @@ static inline int suspend_devices_and_enter(suspend_state_t state)
 }
 #endif /* !CONFIG_SUSPEND */
 
-/* kernel/power/common.c */
-extern struct blocking_notifier_head pm_chain_head;
+#ifdef CONFIG_PM_SLEEP
+/* kernel/power/main.c */
+extern int pm_notifier_call_chain(unsigned long val);
+#endif
+
+#ifdef CONFIG_HIGHMEM
+unsigned int count_highmem_pages(void);
+int restore_highmem(void);
+#else
+static inline unsigned int count_highmem_pages(void) { return 0; }
+static inline int restore_highmem(void) { return 0; }
+#endif
+
+/*
+ * Suspend test levels
+ */
+enum {
+        /* keep first */
+        TEST_NONE,
+        TEST_CORE,
+        TEST_CPUS,
+        TEST_PLATFORM,
+        TEST_DEVICES,
+        TEST_FREEZER,
+        /* keep last */
+        __TEST_AFTER_LAST
+};
+
+#define TEST_FIRST      TEST_NONE
+#define TEST_MAX        (__TEST_AFTER_LAST - 1)
+
+extern int pm_test_level;
+
+#ifdef CONFIG_SUSPEND_FREEZER
+static inline int suspend_freeze_processes(void)
+{
+        return freeze_processes();
+}
 
-static inline int pm_notifier_call_chain(unsigned long val)
+static inline void suspend_thaw_processes(void)
 {
-        return (blocking_notifier_call_chain(&pm_chain_head, val, NULL)
-                        == NOTIFY_BAD) ? -EINVAL : 0;
+        thaw_processes();
 }
+#else
+static inline int suspend_freeze_processes(void)
+{
+        return 0;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+}
+#endif