svn commit: r210586 - projects/ofed/head/sys/ofed/include/linux
Alan Cox
alc at cs.rice.edu
Thu Jul 29 04:26:56 UTC 2010
Jeff Roberson wrote:
> Author: jeff
> Date: Thu Jul 29 02:12:22 2010
> New Revision: 210586
> URL: http://svn.freebsd.org/changeset/base/210586
>
> Log:
> - Refine various page allocation methods. They all essentially override
> the page object pointer to cache the virtual address after allocation.
> This same trick is used in UMA to store the slab address and so it
> should be safe.
>
>
You needn't do this. The virtual address of a kernel_object or
kmem_object page is easily obtained:
VM_MIN_KERNEL_ADDRESS + IDX_TO_OFF(m->pindex)
Regards,
Alan
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