linux-kernel - Re: [RFC PATCH v3 4/6] uretprobes: return probe entry, prepare uretprobe

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Date:	Sun, 3 Mar 2013 17:40:29 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Anton Arapov <anton@...hat.com>
Cc:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Josh Stone <jistone@...hat.com>,
	Frank Eigler <fche@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>
Subject: Re: [RFC PATCH v3 4/6] uretprobes: return probe entry, prepare
	uretprobe

On 02/28, Anton Arapov wrote:
>
> @@ -69,6 +69,10 @@ struct uprobe_task {
>  	enum uprobe_task_state		state;
>  	struct arch_uprobe_task		autask;
>
> +	/*
> +	 * list for tracking uprobes with return consumers
> +	 */
> +	struct hlist_head		return_uprobes;

Forgot to mention, at least you should also change uprobe_free_utask()
to cleanup this list, the task can exit from inside the ret-probe'd
function(s).

Oleg.

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