mm/FRV: use common help functions to free reserved pages
Jiang Liu [Mon, 29 Apr 2013 22:06:37 +0000 (15:06 -0700)]
Use common help functions to free reserved pages.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/frv/mm/init.c

index 92e97b0..21b9290 100644 (file)
@@ -122,7 +122,7 @@ void __init mem_init(void)
 #endif
        int codek = 0, datak = 0;
 
-       /* this will put all memory onto the freelists */
+       /* this will put all low memory onto the freelists */
        totalram_pages = free_all_bootmem();
 
 #ifdef CONFIG_MMU
@@ -132,11 +132,7 @@ void __init mem_init(void)
 
 #ifdef CONFIG_HIGHMEM
        for (pfn = num_physpages - 1; pfn >= num_mappedpages; pfn--) {
-               struct page *page = &mem_map[pfn];
-
-               ClearPageReserved(page);
-               init_page_count(page);
-               __free_page(page);
+               __free_reserved_page(&mem_map[pfn]);
                totalram_pages++;
        }
 #endif
@@ -168,21 +164,7 @@ void __init mem_init(void)
 void free_initmem(void)
 {
 #if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL)
-       unsigned long start, end, addr;
-
-       start = PAGE_ALIGN((unsigned long) &__init_begin);      /* round up */
-       end   = ((unsigned long) &__init_end) & PAGE_MASK;      /* round down */
-
-       /* next to check that the page we free is not a partial page */
-       for (addr = start; addr < 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: %ldKiB freed (0x%lx - 0x%lx)\n",
-              (end - start) >> 10, start, end);
+       free_initmem_default(0);
 #endif
 } /* end free_initmem() */
 
@@ -193,14 +175,6 @@ void free_initmem(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void __init 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: %dKiB freed\n", (pages * PAGE_SIZE) >> 10);
+       free_reserved_area(start, end, 0, "initrd");
 } /* end free_initrd_mem() */
 #endif