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

- From: Taehee Yoo \<ap420073@gmail.com\>
- Date: 2019-01-07 03:44:57 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/01/5475516
- Thread: https://ratatoskr.run/netdev/2018/12/5472653/t.md

```text
On Mon, 7 Jan 2019 at 01:55, David Miller [ref] wrote:
>
> 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.

I will send a v3 patch.
Thank you!
```