#include <linux/suspend.h>
#include <linux/suspend_ioctls.h>
#include <linux/utsname.h>
+#include <linux/freezer.h>
struct swsusp_info {
struct new_utsname uts;
*/
#define SPARE_PAGES ((1024 * 1024) >> PAGE_SHIFT)
-/* kernel/power/disk.c */
+/* kernel/power/hibernate.c */
extern int hibernation_snapshot(int platform_mode);
extern int hibernation_restore(int platform_mode);
extern int hibernation_platform_enter(void);
extern int pfn_is_nosave(unsigned long);
-extern struct mutex pm_mutex;
-
#define power_attr(_name) \
static struct kobj_attribute _name##_attr = { \
.attr = { \
extern int create_basic_memory_bitmaps(void);
extern void free_basic_memory_bitmaps(void);
-extern unsigned int count_data_pages(void);
+extern int hibernate_preallocate_memory(void);
/**
* Auxiliary structure used for reading the snapshot image data and
*/
struct snapshot_handle {
- loff_t offset; /* number of the last byte ready for reading
- * or writing in the sequence
- */
unsigned int cur; /* number of the block of PAGE_SIZE bytes the
* next operation will refer to (ie. current)
*/
- unsigned int cur_offset; /* offset with respect to the current
- * block (for the next operation)
- */
- unsigned int prev; /* number of the block of PAGE_SIZE bytes that
- * was the current one previously
- */
void *buffer; /* address of the block to read from
* or write to
*/
- unsigned int buf_offset; /* location to read from or write to,
- * given as a displacement from 'buffer'
- */
int sync_read; /* Set to one to notify the caller of
* snapshot_write_next() that it may
* need to call wait_on_bio_chain()
* snapshot_read_next()/snapshot_write_next() is allowed to
* read/write data after the function returns
*/
-#define data_of(handle) ((handle).buffer + (handle).buf_offset)
+#define data_of(handle) ((handle).buffer)
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 int snapshot_read_next(struct snapshot_handle *handle);
+extern int snapshot_write_next(struct snapshot_handle *handle);
extern void snapshot_write_finalize(struct snapshot_handle *handle);
extern int snapshot_image_loaded(struct snapshot_handle *handle);
*/
#define SF_PLATFORM_MODE 1
-/* kernel/power/disk.c */
+/* kernel/power/hibernate.c */
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);
+extern void swsusp_close(fmode_t);
+
+/* kernel/power/block_io.c */
+extern struct block_device *hib_resume_bdev;
+
+extern int hib_bio_read_page(pgoff_t page_off, void *addr,
+ struct bio **bio_chain);
+extern int hib_bio_write_page(pgoff_t page_off, void *addr,
+ struct bio **bio_chain);
+extern int hib_wait_on_bio_chain(struct bio **bio_chain);
struct timeval;
/* kernel/power/swsusp.c */
unsigned int, char *);
#ifdef CONFIG_SUSPEND
-/* kernel/power/main.c */
+/* kernel/power/suspend.c */
+extern const char *const pm_states[];
+
+extern bool valid_state(suspend_state_t state);
extern int suspend_devices_and_enter(suspend_state_t state);
+extern int enter_state(suspend_state_t state);
#else /* !CONFIG_SUSPEND */
static inline int suspend_devices_and_enter(suspend_state_t state)
{
return -ENOSYS;
}
+static inline int enter_state(suspend_state_t state) { return -ENOSYS; }
+static inline bool valid_state(suspend_state_t state) { return false; }
#endif /* !CONFIG_SUSPEND */
-/* kernel/power/common.c */
-extern struct blocking_notifier_head pm_chain_head;
+#ifdef CONFIG_PM_TEST_SUSPEND
+/* kernel/power/suspend_test.c */
+extern void suspend_test_start(void);
+extern void suspend_test_finish(const char *label);
+#else /* !CONFIG_PM_TEST_SUSPEND */
+static inline void suspend_test_start(void) {}
+static inline void suspend_test_finish(const char *label) {}
+#endif /* !CONFIG_PM_TEST_SUSPEND */
-static inline int pm_notifier_call_chain(unsigned long val)
-{
- return (blocking_notifier_call_chain(&pm_chain_head, val, NULL)
- == NOTIFY_BAD) ? -EINVAL : 0;
-}
+#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; }
#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 void suspend_thaw_processes(void)
+{
+ thaw_processes();
+}
+#else
+static inline int suspend_freeze_processes(void)
+{
+ return 0;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+}
+#endif