From: Jiang Liu <liuj97@gmail.com>
Date: Tue, 26 Mar 2013 23:24:30 +0000 (+1100)
Subject: mm/xtensa: use common help functions to free reserved pages
X-Git-Tag: next-20130404~3^2~418
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bc8dc16c50f26f2ceb6d2b8712b6f75b0aff1c15;p=karo-tx-linux.git

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>
---

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);
 }