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authorJiang Liu <liuj97@gmail.com>2013-04-29 15:06:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:30 -0700
commit32ce012064b3cc89d2081d34a745af598e5e56c5 (patch)
tree7f38058627aa040a336367ea8cfb76ab7b5fe752 /arch/mn10300/mm
parent31605922613dfc59402cd6f3a1b019bc2138ff47 (diff)
downloadlinux-32ce012064b3cc89d2081d34a745af598e5e56c5.tar.gz
mm/mn10300: 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: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mn10300/mm')
-rw-r--r--arch/mn10300/mm/init.c23
1 files changed, 2 insertions, 21 deletions
diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c
index e57e5bc2356..5a8ace63a6b 100644
--- a/arch/mn10300/mm/init.c
+++ b/arch/mn10300/mm/init.c
@@ -139,30 +139,11 @@ void __init mem_init(void)
}
/*
- *
- */
-void free_init_pages(char *what, unsigned long begin, unsigned long end)
-{
- unsigned long addr;
-
- for (addr = begin; addr < end; addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- memset((void *) addr, 0xcc, PAGE_SIZE);
- free_page(addr);
- totalram_pages++;
- }
- printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
-}
-
-/*
* recycle memory containing stuff only required for initialisation
*/
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
- (unsigned long) &__init_begin,
- (unsigned long) &__init_end);
+ free_initmem_default(POISON_FREE_INITMEM);
}
/*
@@ -171,6 +152,6 @@ void free_initmem(void)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- free_init_pages("initrd memory", start, end);
+ free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
}
#endif