mm/SH: use common help functions to free reserved pages
Jiang Liu [Mon, 29 Apr 2013 22:06:50 +0000 (15:06 -0700)]
Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/sh/mm/init.c

index 1057940..20f9ead 100644 (file)
@@ -417,15 +417,13 @@ void __init mem_init(void)
 
        for_each_online_node(nid) {
                pg_data_t *pgdat = NODE_DATA(nid);
-               unsigned long node_pages = 0;
                void *node_high_memory;
 
                num_physpages += pgdat->node_present_pages;
 
                if (pgdat->node_spanned_pages)
-                       node_pages = free_all_bootmem_node(pgdat);
+                       totalram_pages += free_all_bootmem_node(pgdat);
 
-               totalram_pages += node_pages;
 
                node_high_memory = (void *)__va((pgdat->node_start_pfn +
                                                 pgdat->node_spanned_pages) <<
@@ -501,31 +499,13 @@ void __init mem_init(void)
 
 void free_initmem(void)
 {
-       unsigned long addr;
-
-       addr = (unsigned long)(&__init_begin);
-       for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
-               ClearPageReserved(virt_to_page(addr));
-               init_page_count(virt_to_page(addr));
-               free_page(addr);
-               totalram_pages++;
-       }
-       printk("Freeing unused kernel memory: %ldk freed\n",
-              ((unsigned long)&__init_end -
-               (unsigned long)&__init_begin) >> 10);
+       free_initmem_default(0);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-       unsigned long p;
-       for (p = start; p < end; p += PAGE_SIZE) {
-               ClearPageReserved(virt_to_page(p));
-               init_page_count(virt_to_page(p));
-               free_page(p);
-               totalram_pages++;
-       }
-       printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
+       free_reserved_area(start, end, 0, "initrd");
 }
 #endif