linux-kernel - Re: Mapping memory between kernel and user space

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Message-ID: <20110215055426.GA468@in.ibm.com>
Date:	Tue, 15 Feb 2011 11:24:26 +0530
From:	Ankita Garg <ankita@...ibm.com>
To:	Sri Ram Vemulpali <sri.ram.gmu06@...il.com>
Cc:	Kernel-newbies <kernelnewbies@...linux.org>,
	linux-kernel-mail <linux-kernel@...r.kernel.org>
Subject: Re: Mapping memory between kernel and user space

On Wed, Feb 09, 2011 at 06:45:42PM -0500, Sri Ram Vemulpali wrote:
> Hi all,
> 
>   How do I map some space between kernel and user space. Can anyone
> point me in to right direction. I was trying to map the packets from
> my netfilter function to kernel user space, to avoid over head of
> copying. Thanks in advance.
>

You can take a look at remap_pfn_range() routine when implementing mmap
in your driver.
 
-- 
Regards,
Ankita Garg (ankita@...ibm.com)
Linux Technology Center
IBM India Systems & Technology Labs,
Bangalore, India
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