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Subject[RFC PATCH v1 26/33] mm/xtensa: use common help functions to free reserved pages
Date
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>
---
arch/xtensa/mm/init.c | 21 +++------------------
1 file changed, 3 insertions(+), 18 deletions(-)

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);
}
--
1.7.9.5


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