From: "Martin J. Bligh" <mbligh@aracnet.com>
To: "Perez-Gonzalez, Inaky" <inaky.perez-gonzalez@intel.com>,
"'linux-mm@kvack.org'" <linux-mm@kvack.org>
Subject: Re: Silly question: How to map a user space page in kernel space?
Date: Fri, 21 Feb 2003 14:22:33 -0800 [thread overview]
Message-ID: <296040000.1045866153@flay> (raw)
In-Reply-To: <A46BBDB345A7D5118EC90002A5072C780A7D5194@orsmsx116.jf.intel.com>
> Got a naive question I cannot find the answer for:
>
> I have a user space page (I know the 'struct page *' and I did a
> get_page() on it so it doesn't go away to swap) and I need to be able to
> access it with normal pointers (to do a bunch of atomic operations on
> it). I cannot use get_user() and friends, just pointers.
>
> So, the question is, how can I map it into the kernel space in a portable
> manner? Am I missing anything very basic here?
>
> Thanks in advance :)
>
> PS: I suspect remap_page_range() is going to be involved, but I cannot see
> how.
kmap or kmap_atomic
M.
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next prev parent reply other threads:[~2003-02-21 22:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <A46BBDB345A7D5118EC90002A5072C780A7D5194@orsmsx116.jf.intel.com >
2003-02-21 22:06 ` Perez-Gonzalez, Inaky
2003-02-21 22:22 ` Martin J. Bligh [this message]
2003-02-21 22:49 Perez-Gonzalez, Inaky
[not found] <A46BBDB345A7D5118EC90002A5072C780A7D57BB@orsmsx116.jf.intel.com >
2003-02-26 3:06 ` Perez-Gonzalez, Inaky
2003-02-26 4:14 ` Martin J. Bligh
2003-02-26 4:39 ` Robert Love
[not found] <A46BBDB345A7D5118EC90002A5072C780A7D57E6@orsmsx116.jf.intel.com >
2003-02-26 4:44 ` Perez-Gonzalez, Inaky
2003-02-26 5:55 ` Martin J. Bligh
2003-02-26 8:33 ` Andrew Morton
2003-02-26 19:03 ` Martin J. Bligh
2003-02-26 12:40 ` Mel Gorman
2003-02-26 18:57 Perez-Gonzalez, Inaky
2003-02-26 19:01 ` Mel Gorman
2003-02-26 19:04 Perez-Gonzalez, Inaky
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