mm/xtensa: 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: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -208,32 +208,17 @@ void __init mem_init(void)
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highmemsize >> 10);
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}
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void
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free_reserved_mem(void *start, void *end)
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{
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for (; start < end; start += PAGE_SIZE) {
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ClearPageReserved(virt_to_page(start));
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init_page_count(virt_to_page(start));
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free_page((unsigned long)start);
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totalram_pages++;
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}
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}
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#ifdef CONFIG_BLK_DEV_INITRD
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extern int initrd_is_mapped;
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void free_initrd_mem(unsigned long start, unsigned long end)
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{
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if (initrd_is_mapped) {
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free_reserved_mem((void*)start, (void*)end);
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printk ("Freeing initrd memory: %ldk freed\n",(end-start)>>10);
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}
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if (initrd_is_mapped)
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free_reserved_area(start, end, 0, "initrd");
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}
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#endif
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void free_initmem(void)
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{
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free_reserved_mem(__init_begin, __init_end);
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printk("Freeing unused kernel memory: %zuk freed\n",
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(__init_end - __init_begin) >> 10);
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free_initmem_default(0);
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}
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