[PATCH 3.18 031/185] asm-generic: provide generic_pmdp_establish()

3.18-stable review patch. If anyone has any objections, please let me know. -- From: "Kirill A. Shutemov" [ Upstream commit c58f0bb77ed8bf93dfdde762b01cb67eebbdfc29 ] Patch series "Do not lose dirty bit on THP pages", v4. Vlastimil noted that

[PATCH 3.18 031/185] asm-generic: provide generic_pmdp_establish()

3.18-stable review patch. If anyone has any objections, please let me know. -- From: "Kirill A. Shutemov" [ Upstream commit c58f0bb77ed8bf93dfdde762b01cb67eebbdfc29 ] Patch series "Do not lose dirty bit on THP pages", v4. Vlastimil noted that pmdp_invalidate() is not atomic