From: Anton Altaparmakov <aia21@cam.ac.uk>
To: Yu-Chen Wu <g944370@oz.nthu.edu.tw>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Could convert a buffer that allocated by vmalloc to pages?
Date: Tue, 23 Jan 2007 13:12:24 +0000 [thread overview]
Message-ID: <1169557944.4475.8.camel@imp.csi.cam.ac.uk> (raw)
In-Reply-To: <030701c73eef$0b4d0010$0100a8c0@sslabmayasky>
On Tue, 2007-01-23 at 21:04 +0800, Yu-Chen Wu wrote:
> Hi,
> I write a driver have a big buffer (16MB,allocated by vmalloc).
> I want to use the buffer to do DMA transmission so I need getting the pages
> of the buffer.
> Have any kernel API can do this?
> My platform is x86_64 and 2GB RAM
vmalloc_to_page()...
See mm/memory.c for the function and how to use it.
Best regards,
Anton
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/
next prev parent reply other threads:[~2007-01-23 13:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-23 13:04 Yu-Chen Wu
2007-01-23 13:12 ` Anton Altaparmakov [this message]
2007-01-23 14:15 ` Yu-Chen Wu
2007-01-23 14:50 ` Anton Altaparmakov
2007-01-23 15:40 ` Yu-Chen Wu
2007-01-23 19:36 ` Anton Altaparmakov
2007-01-23 15:42 ` Kyle McMartin
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