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

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Message-Id: <20190106.085535.1209544587823450673.davem@davemloft.net>
Date:   Sun, 06 Jan 2019 08:55:35 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     ap420073@...il.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        daniel@...earbox.net, ast@...nel.org, mcgrof@...nel.org
Subject: Re: [PATCH net 1/4] umh: add exit routine for UMH process

From: Taehee Yoo <ap420073@...il.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.