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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>
Subject: Re: lib/klist.c: bit 0 in pointer can't be used as flag
Date: Wed, 14 Jan 2009 07:40:19 +0900	[thread overview]
Message-ID: <2f11576a0901131440w7fd3290uc9664aaf7aa89b08@mail.gmail.com> (raw)
In-Reply-To: <20090113221235.GD19262@axis.com>

> 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.

  reply	other threads:[~2009-01-13 22:40 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-13 15:14 Jesper Nilsson
2009-01-13 21:10 ` David Miller
2009-01-13 22:12   ` Jesper Nilsson
2009-01-13 22:40     ` KOSAKI Motohiro [this message]
2009-01-13 22:45       ` David Miller
2009-01-13 23:11         ` Bastien ROUCARIES
2009-01-14 10:19           ` Jesper Nilsson
2009-01-14 10:21             ` David Miller
2009-01-14 10:36               ` Jesper Nilsson
2009-01-14 10:45                 ` David Miller
2009-01-14 11:02                   ` Jesper Nilsson
2009-01-14 15:12                   ` Jesper Nilsson
2009-01-14 18:17                     ` Greg KH
2009-01-14 21:53                       ` Jesper Nilsson
2009-01-13 23:54         ` KOSAKI Motohiro
2009-01-13 23:59           ` Greg KH
2009-01-14 10:25             ` Jesper Nilsson
2009-01-14  0:33         ` Hugh Dickins
2009-01-14 10:18         ` Jesper Nilsson
2009-01-13 22:42     ` David Miller

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