swsusp: make some code static

@@ -78,8 +78,8 @@
 extern int is_head_of_free_region(struct page *);
 
 /* Variables to be preserved over suspend */
-int pagedir_order_check;
-int nr_copy_pages_check;
+static int pagedir_order_check;
+static int nr_copy_pages_check;
 
 extern char resume_file[];
 static dev_t resume_device;

@@ -105,14 +105,14 @@
 
 #define SWSUSP_SIG	"S1SUSPEND"
 
-struct swsusp_header {
+static struct swsusp_header {
 	char reserved[PAGE_SIZE - 20 - sizeof(swp_entry_t)];
 	swp_entry_t swsusp_info;
 	char	orig_sig[10];
 	char	sig[10];
 } __attribute__((packed, aligned(PAGE_SIZE))) swsusp_header;
 
-struct swsusp_info swsusp_info;
+static struct swsusp_info swsusp_info;
 
 /*
  * XXX: We try to keep some more pages free so that I/O operations succeed

@@ -175,7 +175,7 @@
 		resume_device == MKDEV(imajor(inode), iminor(inode));
 }
 
-int swsusp_swap_check(void) /* This is called before saving image */
+static int swsusp_swap_check(void) /* This is called before saving image */
 {
 	int i, len;
 	

@@ -422,7 +422,7 @@
 	struct highmem_page *next;
 };
 
-struct highmem_page *highmem_copy = NULL;
+static struct highmem_page *highmem_copy = NULL;
 
 static int save_highmem_zone(struct zone *zone)
 {

@@ -785,7 +785,7 @@
 	return 0;
 }
 
-int suspend_prepare_image(void)
+static int suspend_prepare_image(void)
 {
 	unsigned int nr_needed_pages = 0;
 	int error;

@@ -1061,12 +1061,12 @@
 	return error;
 }
 
-int bio_read_page(pgoff_t page_off, void * page)
+static int bio_read_page(pgoff_t page_off, void * page)
 {
 	return submit(READ, page_off, page);
 }
 
-int bio_write_page(pgoff_t page_off, void * page)
+static int bio_write_page(pgoff_t page_off, void * page)
 {
 	return submit(WRITE, page_off, page);
 }