linux-kernel - Re: copy_from_user / copy_to

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Message-ID: <op.thi62vj9nwjy9v@titan>
Date:	Mon, 16 Oct 2006 15:26:45 -0500
From:	mfbaustx <mfbaustx@...il.com>
To:	"Kyle Moffett" <mrmacman_g4@....com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: copy_from_user / copy_to_user with no swap space

> pages and memory-mapped files may be "swapped-out" even *without* a swap  
> device.  As an example, when I first start /bin/bash (ignoring readahead

Fair enough.  The kernel can reclaim pieces of RAM knowing that certain  
text sections will availble on the storage medium from which they were  
originally loaded.  Right?

Also, I suppose one of the less obvious side-effects of using copy_to_user  
would be to cause a copy-on-write of a data section?

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