diff --git a/[refs] b/[refs]
index 41e7eb3a08d8..92b1869a2faa 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b8c24c4aef94b1f0daafb450363fef13a1163780
+refs/heads/master: 690d5777392180fdc05a82c0c7979e50e8d93de8
diff --git a/trunk/mm/slob.c b/trunk/mm/slob.c
index 30862a2d56a9..74c3bb25f640 100644
--- a/trunk/mm/slob.c
+++ b/trunk/mm/slob.c
@@ -97,7 +97,6 @@ typedef struct slob_block slob_t;
 static inline void free_slob_page(struct page *sp)
 {
 	reset_page_mapcount(sp);
-	sp->mapping = NULL;
 }
 
 /*