linux-kernel - Re: [PATCH v4] tty: add missing rcu_read_lock for task

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Message-ID: <55A307EC.1000309@hurleysoftware.com>
Date:	Sun, 12 Jul 2015 20:35:56 -0400
From:	Peter Hurley <peter@...leysoftware.com>
To:	Patrick Donnelly <batrick@...bytes.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	Jiri Slaby <jslaby@...e.cz>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] tty: add missing rcu_read_lock for task_pgrp

On 07/12/2015 06:51 PM, Patrick Donnelly wrote:
> task_pgrp requires an rcu or tasklist lock to be obtained if the returned pid
> is to be dereferenced, which kill_pgrp does. Obtain an RCU lock for the
> duration of use.

Reviewed-by: Peter Hurley <peter@...leysoftware.com>

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