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

From: David Miller
Date: Sun Jan 06 2019 - 11:55:55 EST

From: Taehee Yoo <ap420073@xxxxxxxxx>
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.