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Commit c9418368 authored by Jiang Liu's avatar Jiang Liu Committed by Linus Torvalds
Browse files

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



Use common help functions to free reserved pages.

Signed-off-by: default avatarJiang Liu <jiang.liu@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d2309a19

arch/metag/mm/init.c

+2 −19
Original line number Diff line number Diff line
@@ -412,32 +412,15 @@ void __init mem_init(void) 
	return;

}



static 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, POISON_FREE_INITMEM, PAGE_SIZE);

		free_page(addr);

		totalram_pages++;

	}

	pr_info("Freeing %s: %luk freed\n", what, (end - begin) >> 10);

}



void free_initmem(void)

{

	free_init_pages("unused kernel memory",

			(unsigned long)(&__init_begin),

			(unsigned long)(&__init_end));

	free_initmem_default(POISON_FREE_INITMEM);

}



#ifdef CONFIG_BLK_DEV_INITRD

void free_initrd_mem(unsigned long start, unsigned long end)

{

	end = end & PAGE_MASK;

	free_init_pages("initrd memory", start, end);

	free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");

}

#endif