linux-kernel - Re: [PATCH] tty: ->signal->tty locking

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Message-Id: <1161263396.17335.42.camel@localhost.localdomain>
Date:	Thu, 19 Oct 2006 14:09:55 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>, Oleg Nesterov <oleg@...sign.ru>,
	Prarit Bhargava <prarit@...hat.com>,
	Chris Wright <chrisw@...s-sol.org>
Subject: Re: [PATCH] tty: ->signal->tty locking

Ar Iau, 2006-10-19 am 14:13 +0200, ysgrifennodd Peter Zijlstra:
> Fix the locking of signal->tty.
> 
> Use ->sighand->siglock to protect ->signal->tty; this lock is already used
> by most other members of ->signal/->sighand. And unless we are 'current' or
> the tasklist_lock is held we need ->siglock to access ->signal anyway.


Nice

Acked-by: Alan Cox <alan@...hat.com>

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