mm/h8300: use common help functions to free reserved pages
Jiang Liu [Mon, 29 Apr 2013 22:06:38 +0000 (15:06 -0700)]
Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/h8300/mm/init.c

index 981e250..ff349d7 100644 (file)
@@ -139,7 +139,7 @@ void __init mem_init(void)
        start_mem = PAGE_ALIGN(start_mem);
        max_mapnr = num_physpages = MAP_NR(high_memory);
 
-       /* this will put all memory onto the freelists */
+       /* this will put all low memory onto the freelists */
        totalram_pages = free_all_bootmem();
 
        codek = (_etext - _stext) >> 10;
@@ -161,15 +161,7 @@ void __init mem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-       int pages = 0;
-       for (; start < end; start += PAGE_SIZE) {
-               ClearPageReserved(virt_to_page(start));
-               init_page_count(virt_to_page(start));
-               free_page(start);
-               totalram_pages++;
-               pages++;
-       }
-       printk ("Freeing initrd memory: %dk freed\n", pages);
+       free_reserved_area(start, end, 0, "initrd");
 }
 #endif
 
@@ -177,23 +169,7 @@ void
 free_initmem(void)
 {
 #ifdef CONFIG_RAMKERNEL
-       unsigned long addr;
-/*
- *     the following code should be cool even if these sections
- *     are not page aligned.
- */
-       addr = PAGE_ALIGN((unsigned long)(__init_begin));
-       /* next to check that the page we free is not a partial page */
-       for (; addr + PAGE_SIZE < (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(KERN_INFO "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
-                       (addr - PAGE_ALIGN((long) __init_begin)) >> 10,
-                       (int)(PAGE_ALIGN((unsigned long)__init_begin)),
-                       (int)(addr - PAGE_SIZE));
+       free_initmem_default(0);
 #endif
 }