mm/arc: 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>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 21 deletions

diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index caf797de23fc..727d4794ea0f 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -144,37 +144,18 @@ void __init mem_init(void)
                 PAGES_TO_KB(reserved_pages));
 }
 
-static void __init free_init_pages(const char *what, unsigned long begin,
-                                   unsigned long end)
-{
-        unsigned long addr;
-
-        pr_info("Freeing %s: %ldk [%lx] to [%lx]\n",
-                what, TO_KB(end - begin), begin, end);
-
-        /* need to check that the page we free is not a partial page */
-        for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) {
-                ClearPageReserved(virt_to_page(addr));
-                init_page_count(virt_to_page(addr));
-                free_page(addr);
-                totalram_pages++;
-        }
-}
-
 /*
  * free_initmem: Free all the __init memory.
  */
 void __init_refok free_initmem(void)
 {
-        free_init_pages("unused kernel memory",
-                        (unsigned long)__init_begin,
-                        (unsigned long)__init_end);
+        free_initmem_default(0);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
 void __init free_initrd_mem(unsigned long start, unsigned long end)
 {
-        free_init_pages("initrd memory", start, end);
+        free_reserved_area(start, end, 0, "initrd");
 }
 #endif