Re: kernel vaddr -> struct page

David S. Miller (davem@redhat.com)
Thu, 17 Oct 2002 13:22:29 -0700 (PDT)


vmalloc_to_page() does not work on kmalloc/kmap'd memory.

On many system kmalloc memory is not even represented in the
page tables because the mapping goes through a direct bypass
window.

You need to know where the object came from to convert it
into a page properly. You should be allocating and passing
around pages internally anyways.
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