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x86, cleanups: Use clear_page/copy_page rather than memset/memcpy

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When operating on whole pages, use clear_page() and copy_page() in
favor of memset() and memcpy(); after all that's what they are
intended for.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <4C7FB8CA0200007800013F51@vpn.id2.novell.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Jan Beulich
2010-09-02 13:46:34 +01:00
committed by H. Peter Anvin
parent 0f1cf415f0
commit 234bb549ee
4 changed files with 6 additions and 7 deletions
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2
arch/x86/mm/init_64.c
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@@ -293,7 +293,7 @@ static __ref void *alloc_low_page(unsigned long *phys)
panic("alloc_low_page: ran out of memory");
adr = early_memremap(pfn * PAGE_SIZE, PAGE_SIZE);
memset(adr, 0, PAGE_SIZE);
clear_page(adr);
*phys = pfn * PAGE_SIZE;
return adr;
}