[GFS2] Shrink gfs2_inode (3) - di_mode

This removes the duplicate di_mode field in favour of using the
inode->i_mode field. This saves 4 bytes.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/eaops.c b/fs/gfs2/eaops.c
index 92c54e9..cd747c0 100644
--- a/fs/gfs2/eaops.c
+++ b/fs/gfs2/eaops.c
@@ -120,7 +120,7 @@
 
 	if (GFS2_ACL_IS_ACCESS(er->er_name, er->er_name_len)) {
 		if (!(er->er_flags & GFS2_ERF_MODE)) {
-			er->er_mode = ip->i_di.di_mode;
+			er->er_mode = ip->i_inode.i_mode;
 			er->er_flags |= GFS2_ERF_MODE;
 		}
 		error = gfs2_acl_validate_set(ip, 1, er,