[PATCH 4.9 028/107] mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Naoya Horiguchi commit eee4818baac0f2b37848fdf90e4b16430dc536ac upstream _PAGE_PSE is used to distinguish between a truly non-present (_PAGE_PRESENT=0) PMD, and a PMD which is undergoing a THP

[PATCH 4.9 028/107] mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Naoya Horiguchi commit eee4818baac0f2b37848fdf90e4b16430dc536ac upstream _PAGE_PSE is used to distinguish between a truly non-present (_PAGE_PRESENT=0) PMD, and a PMD which is undergoing a THP