ext2: replace inode uid,gid,mode init with helper

Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/ext2/ialloc.c

@@ -549,16 +549,12 @@ struct inode *ext2_new_inode(struct inode *dir, int mode)
 
 	sb->s_dirt = 1;
 	mark_buffer_dirty(bh2);
+	if (test_opt(sb, GRPID)) {
+		inode->i_mode = mode;
 		inode->i_uid = current_fsuid();
-	if (test_opt (sb, GRPID))
-		inode->i_gid = dir->i_gid;
-	else if (dir->i_mode & S_ISGID) {
 		inode->i_gid = dir->i_gid;
-		if (S_ISDIR(mode))
-			mode |= S_ISGID;
 	} else
-		inode->i_gid = current_fsgid();
-	inode->i_mode = mode;
+		inode_init_owner(inode, dir, mode);
 
 	inode->i_ino = ino;
 	inode->i_blocks = 0;