x86: PAT: modify follow_phys to return phys_addr prot and return value

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Impact: Changes and globalizes an existing static interface.

Follow_phys does similar things as follow_pfnmap_pte. Make a minor change
to follow_phys so that it can be used in place of follow_pfnmap_pte.
Physical address return value with 0 as error return does not work in
follow_phys as the actual physical address 0 mapping may exist in pte.

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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venkatesh.pallipadi@intel.com 2008-12-19 13:47:27 -08:00 • committed by H. Peter Anvin

parent 6bd9cd50c8

commit d87fe6607c

2 changed files with 16 additions and 17 deletions

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include/linux/mm.h

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