linux-kernel - Re: [PATCH] export get_task

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Date:	Mon, 26 Jan 2009 21:29:18 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Kyle McMartin <kyle@...radead.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Christoph Bartelmus <lirc@...telmus.de>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>
Subject: Re: [PATCH] export get_task_comm()

On Mon, 26 Jan 2009 21:26:15 -0800 Andrew Morton <akpm@...ux-foundation.org> wrote:

> On Tue, 27 Jan 2009 00:19:19 -0500 Kyle McMartin <kyle@...radead.org> wrote:
> 
> > On Mon, Jan 26, 2009 at 09:16:55PM -0800, Andrew Morton wrote:
> > > Ho hum, I suppose so.  I redid the changelog a bit:
> > > 
> > >    task_struct.comm[] is useful for debugging and driver developers
> > >    want to use this information easily.  Direct access to
> > >    task_struct.comm[] is a bit racy, so export the official accessor.
> > > 
> > 
> > Maybe lirc should be submitted to staging/ before we go exporting
> > symbols for out of tree things... ;-)
> 
> y:/usr/src/linux-2.6.29-rc2> grep -r 'current->comm' drivers | wc -l
> 77
> 
> :(

It's worth a checkpatch rule, I guess: "direct access to
task_struct.comm is racy - use get_task_comm()".

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