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mm/mn10300: use common help functions to free reserved pages

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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>
This commit is contained in:
Jiang Liu 2013-04-29 15:06:44 -07:00 committed by Linus Torvalds
parent 3160592261
commit 32ce012064
1 changed files with 2 additions and 21 deletions
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23
arch/mn10300/mm/init.c
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@ -138,31 +138,12 @@ void __init mem_init(void)
totalhigh_pages << (PAGE_SHIFT - 10));
}
/*
*
*/
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