x86: PAT: add follow_pfnmp_pte routine to help tracking pfnmap pages - v3
authorvenkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com>
Thu, 18 Dec 2008 19:41:28 +0000 (11:41 -0800)
committerH. Peter Anvin <hpa@zytor.com>
Thu, 18 Dec 2008 21:30:15 +0000 (13:30 -0800)
Impact: New currently unused interface.

Add a generic interface to follow pfn in a pfnmap vma range. This is used by
one of the subsequent x86 PAT related patch to keep track of memory types
for vma regions across vma copy and free.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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