linux-kernel - Re: [PATCH] Use helpers to obtain task pid in printks (arch code)

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Date:	Thu, 30 Aug 2007 21:11:05 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	Joe Perches <joe@...ches.com>
cc:	Pavel Emelyanov <xemul@...nvz.org>, Andrew Morton <akpm@...l.org>,
	Alexey Dobriyan <adobriyan@...nvz.org>,
	Linux Containers <containers@...ts.osdl.org>,
	linux-arch@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sukadev Bhattiprolu <sukadev@...ibm.com>,
	Oleg Nesterov <oleg@...sign.ru>
Subject: Re: [PATCH] Use helpers to obtain task pid in printks (arch code)


On Aug 27 2007 11:01, Joe Perches wrote:
>On Mon, 2007-08-27 at 11:30 +0400, Pavel Emelyanov wrote:
>> From: Alexey Dobriyan <adobriyan@...nvz.org>
>> 
>> One of the easiest things to isolate is the pid printed in kernel
>> log. There was a patch, that made this for arch-independent code,
>> this one makes so for arch/xxx files.
>
>Perhaps it would be worthwhile to standardize the printk
>task information content? Maybe a format knob?
>
>Maybe TASK_FMT/TASK_ARG(task)
>
>#define TASK_FMT "%s"
>#define TASK_ARG(tsk) ({char __buf[MAX_TASK_INFO]; print_task(tsk, buf, sizeof(__buf)); __buf})

Except that __buf goes out of scope before printk() is called...



	Jan
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