[PATCH] mm: VM_BUG_ON

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

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 8a52ba9fe693bcf749486c3ec5ae6f1e26849700..4b33878e94883d865836e249cbd886584af7ce29 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -127,7 +127,6 @@ static int bad_range(struct zone *zone, struct page *page)
 
        return 0;
 }
-
 #else
 static inline int bad_range(struct zone *zone, struct page *page)
 {
@@ -218,12 +217,12 @@ static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags)
 {
        int i;
 
-       BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM);
+       VM_BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM);
        /*
         * clear_highpage() will use KM_USER0, so it's a bug to use __GFP_ZERO
         * and __GFP_HIGHMEM from hard or soft interrupt context.
         */
-       BUG_ON((gfp_flags & __GFP_HIGHMEM) && in_interrupt());
+       VM_BUG_ON((gfp_flags & __GFP_HIGHMEM) && in_interrupt());
        for (i = 0; i < (1 << order); i++)
                clear_highpage(page + i);
 }
@@ -347,8 +346,8 @@ static inline void __free_one_page(struct page *page,
 
        page_idx = page_to_pfn(page) & ((1 << MAX_ORDER) - 1);
 
-       BUG_ON(page_idx & (order_size - 1));
-       BUG_ON(bad_range(zone, page));
+       VM_BUG_ON(page_idx & (order_size - 1));
+       VM_BUG_ON(bad_range(zone, page));
 
        zone->free_pages += order_size;
        while (order < MAX_ORDER-1) {
@@ -421,7 +420,7 @@ static void free_pages_bulk(struct zone *zone, int count,
        while (count--) {
                struct page *page;
 
-               BUG_ON(list_empty(list));
+               VM_BUG_ON(list_empty(list));
                page = list_entry(list->prev, struct page, lru);
                /* have to delete it as __free_one_page list manipulates */
                list_del(&page->lru);
@@ -512,7 +511,7 @@ static inline void expand(struct zone *zone, struct page *page,
                area--;
                high--;
                size >>= 1;
-               BUG_ON(bad_range(zone, &page[size]));
+               VM_BUG_ON(bad_range(zone, &page[size]));
                list_add(&page[size].lru, &area->free_list);
                area->nr_free++;
                set_page_order(&page[size], high);
@@ -761,8 +760,8 @@ void split_page(struct page *page, unsigned int order)
 {
        int i;
 
-       BUG_ON(PageCompound(page));
-       BUG_ON(!page_count(page));
+       VM_BUG_ON(PageCompound(page));
+       VM_BUG_ON(!page_count(page));
        for (i = 1; i < (1 << order); i++)
                set_page_refcounted(page + i);
 }
@@ -809,7 +808,7 @@ again:
        local_irq_restore(flags);
        put_cpu();
 
-       BUG_ON(bad_range(zone, page));
+       VM_BUG_ON(bad_range(zone, page));
        if (prep_new_page(page, order, gfp_flags))
                goto again;
        return page;
@@ -1083,7 +1082,7 @@ fastcall unsigned long get_zeroed_page(gfp_t gfp_mask)
         * get_zeroed_page() returns a 32-bit address, which cannot represent
         * a highmem page
         */
-       BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0);
+       VM_BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0);
 
        page = alloc_pages(gfp_mask | __GFP_ZERO, 0);
        if (page)
@@ -1116,7 +1115,7 @@ EXPORT_SYMBOL(__free_pages);
 fastcall void free_pages(unsigned long addr, unsigned int order)
 {
        if (addr != 0) {
-               BUG_ON(!virt_addr_valid((void *)addr));
+               VM_BUG_ON(!virt_addr_valid((void *)addr));
                __free_pages(virt_to_page((void *)addr), order);
        }
 }