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Commit 7acb2c2e authored by Jiang Liu's avatar Jiang Liu Committed by Linus Torvalds
Browse files

mm/xtensa: 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: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bced0e32

arch/xtensa/mm/init.c

+3 −18
Original line number Diff line number Diff line
@@ -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);

}