spi_mpc83xx: support loopback mode

[linux-2.6] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e2a10b957f23cd9ddd287d09a37d0db02af78ffa..3da85b81dabb32608fa065f8086de64f725f5af8 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -138,7 +138,7 @@ static unsigned long __meminitdata dma_reserve;
 #endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */
   unsigned long __initdata required_kernelcore;
   unsigned long __initdata required_movablecore;
-  unsigned long __initdata zone_movable_pfn[MAX_NUMNODES];
+  unsigned long __meminitdata zone_movable_pfn[MAX_NUMNODES];
 
   /* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
   int movable_zone;
@@ -453,12 +453,6 @@ static inline int free_pages_check(struct page *page)
                        1 << PG_reserved |
                        1 << PG_buddy ))))
                bad_page(page);
-       /*
-        * PageReclaim == PageTail. It is only an error
-        * for PageReclaim to be set if PageCompound is clear.
-        */
-       if (unlikely(!PageCompound(page) && PageReclaim(page)))
-               bad_page(page);
        if (PageDirty(page))
                __ClearPageDirty(page);
        /*
@@ -602,7 +596,6 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
                        1 << PG_locked  |
                        1 << PG_active  |
                        1 << PG_dirty   |
-                       1 << PG_reclaim |
                        1 << PG_slab    |
                        1 << PG_swapcache |
                        1 << PG_writeback |
@@ -617,7 +610,7 @@ static int prep_new_page(struct page *page, int order, gfp_t gfp_flags)
        if (PageReserved(page))
                return 1;
 
-       page->flags &= ~(1 << PG_uptodate | 1 << PG_error |
+       page->flags &= ~(1 << PG_uptodate | 1 << PG_error | 1 << PG_readahead |
                        1 << PG_referenced | 1 << PG_arch_1 |
                        1 << PG_owner_priv_1 | 1 << PG_mappedtodisk);
        set_page_private(page, 0);
@@ -733,7 +726,7 @@ static void __drain_pages(unsigned int cpu)
        }
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_HIBERNATION
 
 void mark_free_pages(struct zone *zone)
 {
@@ -779,7 +772,7 @@ void drain_local_pages(void)
        __drain_pages(smp_processor_id());
        local_irq_restore(flags);       
 }
-#endif /* CONFIG_PM */
+#endif /* CONFIG_HIBERNATION */
 
 /*
  * Free a 0-order page
@@ -1357,6 +1350,10 @@ nofail_alloc:
                if (page)
                        goto got_pg;
 
+               /* The OOM killer will not help higher order allocs so fail */
+               if (order > PAGE_ALLOC_COSTLY_ORDER)
+                       goto nopage;
+
                out_of_memory(zonelist, gfp_mask, order);
                goto restart;
        }
@@ -2782,11 +2779,11 @@ unsigned long __meminit __absent_pages_in_range(int nid,
        if (i == -1)
                return 0;
 
+       prev_end_pfn = min(early_node_map[i].start_pfn, range_end_pfn);
+
        /* Account for ranges before physical memory on this node */
        if (early_node_map[i].start_pfn > range_start_pfn)
-               hole_pages = early_node_map[i].start_pfn - range_start_pfn;
-
-       prev_end_pfn = early_node_map[i].start_pfn;
+               hole_pages = prev_end_pfn - range_start_pfn;
 
        /* Find all holes for the zone within the node */
        for (; i != -1; i = next_active_region_index_in_nid(i, nid)) {