sparc64: Support transparent huge pages.

[pandora-kernel.git] / mm / nobootmem.c

diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index d23415c..714d5d6 100644 (file)
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -105,27 +105,38 @@ static void __init __free_pages_memory(unsigned long start, unsigned long end)
                __free_pages_bootmem(pfn_to_page(i), 0);
 }
 
+static unsigned long __init __free_memory_core(phys_addr_t start,
+                                phys_addr_t end)
+{
+       unsigned long start_pfn = PFN_UP(start);
+       unsigned long end_pfn = min_t(unsigned long,
+                                     PFN_DOWN(end), max_low_pfn);
+
+       if (start_pfn > end_pfn)
+               return 0;
+
+       __free_pages_memory(start_pfn, end_pfn);
+       fixup_zone_present_pages(pfn_to_nid(start >> PAGE_SHIFT),
+                       start_pfn, end_pfn);
+
+       return end_pfn - start_pfn;
+}
+
 unsigned long __init free_low_memory_core_early(int nodeid)
 {
        unsigned long count = 0;
-       phys_addr_t start, end;
+       phys_addr_t start, end, size;
        u64 i;
 
-       /* free reserved array temporarily so that it's treated as free area */
-       memblock_free_reserved_regions();
-
-       for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL) {
-               unsigned long start_pfn = PFN_UP(start);
-               unsigned long end_pfn = min_t(unsigned long,
-                                             PFN_DOWN(end), max_low_pfn);
-               if (start_pfn < end_pfn) {
-                       __free_pages_memory(start_pfn, end_pfn);
-                       count += end_pfn - start_pfn;
-               }
-       }
+       reset_zone_present_pages();
+       for_each_free_mem_range(i, MAX_NUMNODES, &start, &end, NULL)
+               count += __free_memory_core(start, end);
+
+       /* free range that is used for reserved array if we allocate it */
+       size = get_allocated_memblock_reserved_regions_info(&start);
+       if (size)
+               count += __free_memory_core(start, start + size);
 
-       /* put region array back? */
-       memblock_reserve_reserved_regions();
        return count;
 }
 
@@ -154,8 +165,6 @@ unsigned long __init free_all_bootmem(void)
         * We need to use MAX_NUMNODES instead of NODE_DATA(0)->node_id
         *  because in some case like Node0 doesn't have RAM installed
         *  low ram will be on Node1
-        * Use MAX_NUMNODES will make sure all ranges in early_node_map[]
-        *  will be used instead of only Node0 related
         */
        return free_low_memory_core_early(MAX_NUMNODES);
 }
@@ -274,7 +283,7 @@ void * __init __alloc_bootmem(unsigned long size, unsigned long align,
        return ___alloc_bootmem(size, align, goal, limit);
 }
 
-static void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
+void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat,
                                                   unsigned long size,
                                                   unsigned long align,
                                                   unsigned long goal,