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Date: Mon, 7 Oct 2002 15:16:05 +0100
From: Christoph Hellwig <hch@infradead.org>
To: David Howells <dhowells@redhat.com>
Cc: torvalds@transmeta.com, linux-kernel@vger.kernel.org
Subject: Re: bcopy()
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On Mon, Oct 07, 2002 at 02:57:12PM +0100, David Howells wrote:
> 
> Hi Linus,
> 
> The implementation of bcopy() in lib/string.c (and some other places such as
> the XFS header files) is incorrect as it implements bcopy as memcpy. This is
> wrong: bcopy should be the equivalent of memmove (which handles overlapping
> areas correctly).

Kernel bcopy in traditional unix versions never supported overlapping.
That's what ovbcopy() is/was for.
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