9/21/2016wip-percore-lib

1 files changed, 5 insertions, 1 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 6bf5e42d560a..8f378ac675d7 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -970,7 +970,11 @@ repeat:
         page = NULL;
         pagep = radix_tree_lookup_slot(&mapping->page_tree, offset);
         if (pagep) {
-                page = radix_tree_deref_slot(pagep);
+                void *pdesc;
+                pdesc = radix_tree_deref_slot(pagep);
+                if (pdesc)
+                        page = (struct page*)pdesc;
+                //page = radix_tree_deref_slot(pagep);
                 if (unlikely(!page))
                         goto out;
                 if (radix_tree_exception(page)) {