From: Manfred Spraul <manfred@colorfullife.com>
To: LA Walsh <law@sgi.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Block driver design issue
Date: Mon, 12 Feb 2001 18:30:58 +0100 [thread overview]
Message-ID: <3A881DD2.46D2EE66@colorfullife.com> (raw)
In-Reply-To: <3A881A52.962B3ED4@sgi.com>
LA Walsh wrote:
>
>
> I find this duplication of code to be inefficient. Is there a way to dummy up the
> the 'buf' address so that the "copy_from_user" will copy the buffer from kernel space?
> My assumption is that it wouldn't "just work" (which may also be an invalid assumption).
>
> Suggestions? Abuse?
>
set_fs(KERNEL_DS)?
After that call copy_from_user() will accept kernel space addresses.
--
Manfred
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prev parent reply other threads:[~2001-02-12 17:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-12 17:16 Block driver design issue LA Walsh
2001-02-12 17:30 ` Manfred Spraul [this message]
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