1 files changed, 4 insertions, 1 deletions

diff --git a/kernel/power/power.h b/kernel/power/power.h
index 9c9167d910dd..6748de23e83c 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -9,6 +9,9 @@
 #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
 #endif
 
+#define MAX_PBES        ((PAGE_SIZE - sizeof(struct new_utsname) \
+                        - 4 - 3*sizeof(unsigned long) - sizeof(int) \
+                        - sizeof(void *)) / sizeof(swp_entry_t))
 
 struct swsusp_info {
         struct new_utsname      uts;
@@ -18,7 +21,7 @@ struct swsusp_info {
         unsigned long           image_pages;
         unsigned long           pagedir_pages;
         suspend_pagedir_t       * suspend_pagedir;
-        swp_entry_t             pagedir[768];
+        swp_entry_t             pagedir[MAX_PBES];
 } __attribute__((aligned(PAGE_SIZE)));