linux-kernel - Re: valid task structure and wake_up

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Message-ID: <20080414121105.5f9e5482@laptopd505.fenrus.org>
Date:	Mon, 14 Apr 2008 12:11:05 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	"Shirish Pargaonkar" <shirishpargaonkar@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: valid task structure and wake_up_process

On Mon, 14 Apr 2008 13:36:42 -0500
"Shirish Pargaonkar" <shirishpargaonkar@...il.com> wrote:

> How do I check whether a task is valid before calling
> wake_up_process() with that task structure pointer?

Hi,

how did you get the pointer you got?

That part (the guy who gave you the pointer) should have taken a reference on the task basically,
or otherwise locked against the task going away.

In giving you advice it would help tremendously if you actually posted your code...





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