mm: enable page poisoning early at boot

[linux-2.6-microblaze.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4653918..f1f2256 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1689,10 +1689,10 @@ static inline int check_new_page(struct page *page)
        return 1;
 }
 
-static inline bool free_pages_prezeroed(bool poisoned)
+static inline bool free_pages_prezeroed(void)
 {
        return IS_ENABLED(CONFIG_PAGE_POISONING_ZERO) &&
-               page_poisoning_enabled() && poisoned;
+               page_poisoning_enabled();
 }
 
 #ifdef CONFIG_DEBUG_VM
@@ -1746,17 +1746,10 @@ static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags
                                                        unsigned int alloc_flags)
 {
        int i;
-       bool poisoned = true;
-
-       for (i = 0; i < (1 << order); i++) {
-               struct page *p = page + i;
-               if (poisoned)
-                       poisoned &= page_is_poisoned(p);
-       }
 
        post_alloc_hook(page, order, gfp_flags);
 
-       if (!free_pages_prezeroed(poisoned) && (gfp_flags & __GFP_ZERO))
+       if (!free_pages_prezeroed() && (gfp_flags & __GFP_ZERO))
                for (i = 0; i < (1 << order); i++)
                        clear_highpage(page + i);