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From: "Perez-Gonzalez, Inaky" <inaky.perez-gonzalez@intel.com>
To: "'linux-mm@kvack.org'" <linux-mm@kvack.org>
Subject: Silly question: How to map a user space page in kernel space?
Date: Fri, 21 Feb 2003 14:06:21 -0800	[thread overview]
Message-ID: <A46BBDB345A7D5118EC90002A5072C780A7D5194@orsmsx116.jf.intel.com> (raw)

Hi All

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.

Inaky Perez-Gonzalez --- Not speaking for Intel -- all opinions are my own
(and my fault)
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             reply	other threads:[~2003-02-21 22:04 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 [this message]
2003-02-21 22:22   ` Martin J. Bligh
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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