linux-kernel - Re: [PATCH] export kernel call get_task

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Message-ID: <1303512239.13457.123.camel@localhost>
Date:	Fri, 22 Apr 2011 15:43:59 -0700
From:	J Freyensee <james_p_freyensee@...ux.intel.com>
To:	David Rientjes <rientjes@...gle.com>
Cc:	akpm@...ux-foundattion.org, gregkh@...e.de,
	linux-kernel@...r.kernel.org, suhail.ahmed@...el.com,
	christophe.guerard@...el.com
Subject: Re: [PATCH] export kernel call get_task_comm().

On Fri, 2011-04-22 at 15:35 -0700, David Rientjes wrote:
> On Fri, 22 Apr 2011, james_p_freyensee@...ux.intel.com wrote:
> 
> > From: J Freyensee <james_p_freyensee@...ux.intel.com>
> > 
> > This allows drivers who call this function to be compiled modularly.
> > Otherwise, a driver who is interested in this type of functionality
> > has to implement their own get_task_comm() call, causing code
> > duplication in the Linux source tree.
> > 
> > Signed-off-by: J Freyensee <james_p_freyensee@...ux.intel.com>
> 
> Acked-by: David Rientjes <rientjes@...gle.com>
> 
> I still suggest that we implement finer-grained protection for tsk->comm 
> through get_task_comm(), though, because it's going to be difficult to 
> know whether task_lock(tsk) is held in all contexts we'll want to call it; 
> task_lock(tsk) is used to protect many members of task_struct.

Okay, but how about accepting this as step 1, then investigate a finer
grained lock structure as step 2?

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