linux-kernel - Re: [PATCH 1/3] procfs: Export next

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Message-ID: <20120130134312.GA14110@redhat.com>
Date:	Mon, 30 Jan 2012 14:43:12 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Anton Vorontsov <anton.vorontsov@...aro.org>
Cc:	Arve Hjønnevåg <arve@...roid.com>,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	San Mehat <san@...gle.com>, Colin Cross <ccross@...roid.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, kernel-team@...roid.com,
	linaro-kernel@...ts.linaro.org
Subject: Re: [PATCH 1/3] procfs: Export next_tgid(), move it to kernel/pid.c

On 01/30, Anton Vorontsov wrote:
>
> We'd like to use this function in the android low memory killer driver, so
> let's export it.

I guess you mean 3/3.

If lowmem_shrink() can use next_tid() which is not really accurate,
then why tou can't simply change it to use rcu_read_lock ?

Oleg.

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