From: Jiang Liu <liuj97@gmail.com>
Date: Mon, 29 Apr 2013 22:06:55 +0000 (-0700)
Subject: mm/xtensa: use common help functions to free reserved pages
X-Git-Tag: upstream/snapshot3+hdmi~5281^2~89
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7acb2c2e1c4391b58bf8e61efcd478cde5800ec1;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 7a5156f..bba125b 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);
 }