mm/xtensa: 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: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 18 deletions

diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 7a5156ffebb6..bba125b4bb06 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -208,32 +208,17 @@ void __init mem_init(void)
                highmemsize >> 10);
 }
 
-void
-free_reserved_mem(void *start, void *end)
-{
-        for (; start < end; start += PAGE_SIZE) {
-                ClearPageReserved(virt_to_page(start));
-                init_page_count(virt_to_page(start));
-                free_page((unsigned long)start);
-                totalram_pages++;
-        }
-}
-
 #ifdef CONFIG_BLK_DEV_INITRD
 extern int initrd_is_mapped;
 
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-        if (initrd_is_mapped) {
-                free_reserved_mem((void*)start, (void*)end);
-                printk ("Freeing initrd memory: %ldk freed\n",(end-start)>>10);
-        }
+        if (initrd_is_mapped)
+                free_reserved_area(start, end, 0, "initrd");
 }
 #endif
 
 void free_initmem(void)
 {
-        free_reserved_mem(__init_begin, __init_end);
-        printk("Freeing unused kernel memory: %zuk freed\n",
-               (__init_end - __init_begin) >> 10);
+        free_initmem_default(0);
 }