[PATCH] swsusp: use bytes as image size units

Make swsusp use bytes as the image size units, which is needed for future
compatibility.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 9 insertions, 9 deletions

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index e24446f8d8cd..f2b3b0ea512a 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -367,14 +367,14 @@ power_attr(resume);
 
 static ssize_t image_size_show(struct subsystem * subsys, char *buf)
 {
-        return sprintf(buf, "%u\n", image_size);
+        return sprintf(buf, "%lu\n", image_size);
 }
 
 static ssize_t image_size_store(struct subsystem * subsys, const char * buf, size_t n)
 {
-        unsigned int size;
+        unsigned long size;
 
-        if (sscanf(buf, "%u", &size) == 1) {
+        if (sscanf(buf, "%lu", &size) == 1) {
                 image_size = size;
                 return n;
         }
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 7e8492fd1423..61beb5e0e927 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -51,8 +51,8 @@ extern const void __nosave_begin, __nosave_end;
 extern unsigned int nr_copy_pages;
 extern struct pbe *pagedir_nosave;
 
-/* Preferred image size in MB (default 500) */
-extern unsigned int image_size;
+/* Preferred image size in bytes (default 500 MB) */
+extern unsigned long image_size;
 
 extern asmlinkage int swsusp_arch_suspend(void);
 extern asmlinkage int swsusp_arch_resume(void);
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 55a18d26abed..59c91c148e82 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -70,12 +70,12 @@
 #include "power.h"
 
 /*
- * Preferred image size in MB (tunable via /sys/power/image_size).
+ * Preferred image size in bytes (tunable via /sys/power/image_size).
  * When it is set to N, swsusp will do its best to ensure the image
- * size will not exceed N MB, but if that is impossible, it will
+ * size will not exceed N bytes, but if that is impossible, it will
  * try to create the smallest image possible.
  */
-unsigned int image_size = 500;
+unsigned long image_size = 500 * 1024 * 1024;
 
 #ifdef CONFIG_HIGHMEM
 unsigned int count_highmem_pages(void);
@@ -590,7 +590,7 @@ int swsusp_shrink_memory(void)
                         if (!tmp)
                                 return -ENOMEM;
                         pages += tmp;
-                } else if (size > (image_size * 1024 * 1024) / PAGE_SIZE) {
+                } else if (size > image_size / PAGE_SIZE) {
                         tmp = shrink_all_memory(SHRINK_BITE);
                         pages += tmp;
                 }