# Re: \[PATCH net 1/4\] umh: add exit routine for UMH process

- From: David Miller \<davem@davemloft.net\>
- Date: 2019-01-06 16:55:47 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/01/5475375
- Thread: https://ratatoskr.run/netdev/2018/12/5472653/t.md

```text
From: Taehee Yoo <ap420073@gmail.com>
Date: Sun, 6 Jan 2019 14:34:52 +0900

> How about adding a new PF_UMH flag for task_struct->flags to identify
> UMH process?
> By using this flag, the exit_umh() can avoid unnecessary lookups.

Yes, that might be more efficient and eliminate the high cost for
non-UMH tasks.
```