mm/h8300: use common help functions to free reserved pages

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>

1 files changed, 3 insertions, 27 deletions

diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 981e25094b1a..ff349d70a29b 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -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
 }