diff --git a/[refs] b/[refs]
index 496e570a8f27..358fae6df1ea 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 50a9b214bc6c052caa05a210ebfc1bdf0d7085b2
+refs/heads/master: 93c82d575055f1bd0277acae6f966bebafd80dd5
diff --git a/trunk/fs/btrfs/inode.c b/trunk/fs/btrfs/inode.c
index c846482e7985..88f9df7bfdae 100644
--- a/trunk/fs/btrfs/inode.c
+++ b/trunk/fs/btrfs/inode.c
@@ -4233,6 +4233,11 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
 				map = kmap(page);
 				read_extent_buffer(leaf, map + pg_offset, ptr,
 						   copy_size);
+				if (pg_offset + copy_size < PAGE_CACHE_SIZE) {
+					memset(map + pg_offset + copy_size, 0,
+					       PAGE_CACHE_SIZE - pg_offset -
+					       copy_size);
+				}
 				kunmap(page);
 			}
 			flush_dcache_page(page);