You implemented transparent huge pages for MIPS:
commit 970d032fec3f9687446595ee2569fb70b858a69f
Author: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Date: Thu Oct 18 13:54:15 2012 +0200
MIPS: Transparent Huge Pages support
but THP also changed in 3.8:
commit fc9fe822f7112db23e51e2be3b886f5d8f0afdb6
Author: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Date: Wed Dec 12 13:50:51 2012 -0800
thp: copy_huge_pmd(): copy huge zero page
This added the requirement for pfn_pmd(), which is only defined if
CONFIG_64BIT && !CONFIG_CPU_VR41XX.
Ben.
--
Ben Hutchings
Computers are not intelligent. They only think they are.
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