1 files changed, 35 insertions, 23 deletions

diff --git a/mm/bootmem.c b/mm/bootmem.c
index 16b9465eb4eb..35c32290f717 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -296,20 +296,12 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
                 unsigned long v = ~map[i / BITS_PER_LONG];
 
                 if (gofast && v == ~0UL) {
-                        int j, order;
+                        int order;
 
                         page = pfn_to_page(pfn);
                         count += BITS_PER_LONG;
-                        __ClearPageReserved(page);
                         order = ffs(BITS_PER_LONG) - 1;
-                        set_page_refs(page, order);
-                        for (j = 1; j < BITS_PER_LONG; j++) {
-                                if (j + 16 < BITS_PER_LONG)
-                                        prefetchw(page + j + 16);
-                                __ClearPageReserved(page + j);
-                                set_page_count(page + j, 0);
-                        }
-                        __free_pages(page, order);
+                        __free_pages_bootmem(page, order);
                         i += BITS_PER_LONG;
                         page += BITS_PER_LONG;
                 } else if (v) {
@@ -319,9 +311,7 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
                         for (m = 1; m && i < idx; m<<=1, page++, i++) {
                                 if (v & m) {
                                         count++;
-                                        __ClearPageReserved(page);
-                                        set_page_refs(page, 0);
-                                        __free_page(page);
+                                        __free_pages_bootmem(page, 0);
                                 }
                         }
                 } else {
@@ -339,9 +329,7 @@ static unsigned long __init free_all_bootmem_core(pg_data_t *pgdat)
         count = 0;
         for (i = 0; i < ((bdata->node_low_pfn-(bdata->node_boot_start >> PAGE_SHIFT))/8 + PAGE_SIZE-1)/PAGE_SIZE; i++,page++) {
                 count++;
-                __ClearPageReserved(page);
-                set_page_count(page, 1);
-                __free_page(page);
+                __free_pages_bootmem(page, 0);
         }
         total += count;
         bdata->node_bootmem_map = NULL;
@@ -393,15 +381,14 @@ unsigned long __init free_all_bootmem (void)
         return(free_all_bootmem_core(NODE_DATA(0)));
 }
 
-void * __init __alloc_bootmem_limit (unsigned long size, unsigned long align, unsigned long goal,
-                                unsigned long limit)
+void * __init __alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal)
 {
         pg_data_t *pgdat = pgdat_list;
         void *ptr;
 
         for_each_pgdat(pgdat)
                 if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
-                                                 align, goal, limit)))
+                                                 align, goal, 0)))
                         return(ptr);
 
         /*
@@ -413,15 +400,40 @@ void * __init __alloc_bootmem_limit (unsigned long size, unsigned long align, un
 }
 
 
-void * __init __alloc_bootmem_node_limit (pg_data_t *pgdat, unsigned long size, unsigned long align,
-                                     unsigned long goal, unsigned long limit)
+void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align,
+                                   unsigned long goal)
 {
         void *ptr;
 
-        ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, limit);
+        ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0);
         if (ptr)
                 return (ptr);
 
-        return __alloc_bootmem_limit(size, align, goal, limit);
+        return __alloc_bootmem(size, align, goal);
+}
+
+#define LOW32LIMIT 0xffffffff
+
+void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal)
+{
+        pg_data_t *pgdat = pgdat_list;
+        void *ptr;
+
+        for_each_pgdat(pgdat)
+                if ((ptr = __alloc_bootmem_core(pgdat->bdata, size,
+                                                 align, goal, LOW32LIMIT)))
+                        return(ptr);
+
+        /*
+         * Whoops, we cannot satisfy the allocation request.
+         */
+        printk(KERN_ALERT "low bootmem alloc of %lu bytes failed!\n", size);
+        panic("Out of low memory");
+        return NULL;
 }
 
+void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size,
+                                       unsigned long align, unsigned long goal)
+{
+        return __alloc_bootmem_core(pgdat->bdata, size, align, goal, LOW32LIMIT);
+}