Hibernation: Introduce SNAPSHOT_GET_IMAGE_SIZE ioctl

[karo-tx-linux.git] / kernel / power / power.h

diff --git a/kernel/power/power.h b/kernel/power/power.h
index 2093c3a9a994d8a7a3bd82487200b925ee16ac61..23c17031ed2183cc519911afa53b1325d47cb328 100644 (file)
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -128,6 +128,7 @@ 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);
@@ -158,7 +159,8 @@ struct resume_swap_area {
 #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 SNAPSHOT_GET_IMAGE_SIZE                _IOR(SNAPSHOT_IOC_MAGIC, 14, loff_t)
+#define SNAPSHOT_IOC_MAXNR     14
 
 #define PMOPS_PREPARE  1
 #define PMOPS_ENTER    2