Messages in this thread | | | Subject | Re: Could convert a buffer that allocated by vmalloc to pages? | From | Anton Altaparmakov <> | Date | Tue, 23 Jan 2007 13:12:24 +0000 |
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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/
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