hpfs: get rid of bitfields in struct fnode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index b43066c..ed671e0 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -110,7 +110,7 @@
 			}
 		}
 	}
-	if (fnode->dirflag) {
+	if (fnode_is_dir(fnode)) {
 		int n_dnodes, n_subdirs;
 		i->i_mode |= S_IFDIR;
 		i->i_op = &hpfs_dir_iops;