[PATCH 3.18 032/185] mm: pin address_space before dereferencing it while isolating an LRU page

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Mel Gorman [ Upstream commit 69d763fc6d3aee787a3e8c8c35092b4f4960fa5d ] Minchan Kim asked the following question -- what locks protects address_space destroying

[PATCH 3.18 032/185] mm: pin address_space before dereferencing it while isolating an LRU page

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Mel Gorman [ Upstream commit 69d763fc6d3aee787a3e8c8c35092b4f4960fa5d ] Minchan Kim asked the following question -- what locks protects address_space destroying when race happens between