Merge branch 'next' into for-linus

1 files changed, 10 insertions, 1 deletions

diff --git a/mm/swap_state.c b/mm/swap_state.c
index 78cc4d1f6cc..470038a9187 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -13,7 +13,6 @@
 #include <linux/swapops.h>
 #include <linux/init.h>
 #include <linux/pagemap.h>
-#include <linux/buffer_head.h>
 #include <linux/backing-dev.h>
 #include <linux/pagevec.h>
 #include <linux/migrate.h>
@@ -301,6 +300,16 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 			new_page = alloc_page_vma(gfp_mask, vma, addr);
 			if (!new_page)
 				break;		/* Out of memory */
+			/*
+			 * The memcg-specific accounting when moving
+			 * pages around the LRU lists relies on the
+			 * page's owner (memcg) to be valid.  Usually,
+			 * pages are assigned to a new owner before
+			 * being put on the LRU list, but since this
+			 * is not the case here, the stale owner from
+			 * a previous allocation cycle must be reset.
+			 */
+			mem_cgroup_reset_owner(new_page);
 		}
 
 		/*