Hibernation: Introduce SNAPSHOT_GET_IMAGE_SIZE ioctl

[powerpc.git] / kernel / power / snapshot.c

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 78039b4..c5ce0f3 100644 (file)
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1264,12 +1264,17 @@ static char *check_image_kernel(struct swsusp_info *info)
 }
 #endif /* CONFIG_ARCH_HIBERNATION_HEADER */
 
+unsigned long snapshot_get_image_size(void)
+{
+       return nr_copy_pages + nr_meta_pages + 1;
+}
+
 static int init_header(struct swsusp_info *info)
 {
        memset(info, 0, sizeof(struct swsusp_info));
        info->num_physpages = num_physpages;
        info->image_pages = nr_copy_pages;
-       info->pages = nr_copy_pages + nr_meta_pages + 1;
+       info->pages = snapshot_get_image_size();
        info->size = info->pages;
        info->size <<= PAGE_SHIFT;
        return init_header_complete(info);