hecatonchire/linux-heca — pull request #28 by Blopeur (2013-08-09 13:35:57+00:00)
Title: fix THP bug introduced when we moved to 3.9 kernel

The THP bug was a two stage bug:

1. we didn't check the pmd correctly and where missing THP : a bad pmd can be a THP
2. during the shrink page list operation, when we scan the VMA to find if a page belong to a MR we do not release the VMA lock. However this lock can be grabbed by split_huge_page