4616 	struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;  in ext4_commit_super()  local
4619 	if (!sbh || block_device_ejected(sb))  in ext4_commit_super()
4621 	if (buffer_write_io_error(sbh)) {  in ext4_commit_super()
4632 		clear_buffer_write_io_error(sbh);  in ext4_commit_super()
4633 		set_buffer_uptodate(sbh);  in ext4_commit_super()
4663 	BUFFER_TRACE(sbh, "marking dirty");  in ext4_commit_super()
4665 	mark_buffer_dirty(sbh);  in ext4_commit_super()
4667 		error = sync_dirty_buffer(sbh);  in ext4_commit_super()
4671 		error = buffer_write_io_error(sbh);  in ext4_commit_super()
4675 			clear_buffer_write_io_error(sbh);  in ext4_commit_super()
4676 			set_buffer_uptodate(sbh);  in ext4_commit_super()