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	 <20090113.131030.207355839.davem@davemloft.net>
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Date: Wed, 14 Jan 2009 07:40:19 +0900
Message-ID: <2f11576a0901131440w7fd3290uc9664aaf7aa89b08@mail.gmail.com>
Subject: Re: lib/klist.c: bit 0 in pointer can't be used as flag
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Jesper Nilsson <Jesper.Nilsson@axis.com>
Cc: David Miller <davem@davemloft.net>, "tj@kernel.org" <tj@kernel.org>,
       "gregkh@suse.de" <gregkh@suse.de>,
       "stern@rowland.harvard.edu" <stern@rowland.harvard.edu>,
       "jens.axboe@oracle.com" <jens.axboe@oracle.com>,
       "hinko.kocevar@cetrtapot.si" <hinko.kocevar@cetrtapot.si>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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> It may be that we've worked around the other spots, although I haven't
> seen anything like that, we might just have been lucky until now.
>
> Can you recall another place where this trick is used?

rmap.
Don't CRIS use mmu?

>
> It seems that rt_mutex uses the same trick (with the lowest 2bits)
> but AFAICT that's something we don't use on CRIS.
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