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From: Jan Engelhardt <jengelh@linux01.gwdg.de>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Andrew Morton <akpm@osdl.org>,
	olaf+list.linux-kernel@olafdietsche.de, eike-kernel@sf-tec.de,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.16-rc1-git4] accessfs: a permission managing filesystem
Date: Mon, 30 Jan 2006 11:25:26 +0100 (MET)	[thread overview]
Message-ID: <Pine.LNX.4.61.0601301114160.25336@yvahk01.tjqt.qr> (raw)
In-Reply-To: <1138614856.2977.16.camel@laptopd505.fenrus.org>

>> You can't do that.
>
>Exactly why not? Assuming there are zero users left in the kernel.....
>(which highly obviously is a prerequisite for even thinking about such a
>step)

   Documentation/mutex-design.txt:
   * - mutexes may not be used in irq contexts

I need some locking strategy within irq contexts, and that suggests 
semaphores do the job.


Jan Engelhardt
-- 
| Software Engineer and Linux/Unix Network Administrator
| Alphagate Systems, http://alphagate.hopto.org/
| jengelh's site, http://jengelh.hopto.org/

  reply	other threads:[~2006-01-30 10:25 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-14 21:06 [PATCH] 2.6.15: access permission filesystem 0.17 Olaf Dietsche
2006-01-14 22:45 ` Ingo Oeser
2006-01-15 21:22   ` Olaf Dietsche
2006-01-23 11:57 ` Rolf Eike Beer
2006-01-28 22:27   ` [PATCH 2.6.16-rc1-git4] accessfs: a permission managing filesystem Olaf Dietsche
2006-01-28 23:01     ` Andrew Morton
2006-01-29 22:47       ` Olaf Dietsche
2006-01-30  9:07       ` Jan Engelhardt
2006-01-30  9:16         ` Andrew Morton
2006-01-30  9:24           ` Jan Engelhardt
2006-01-30  9:32             ` Andrew Morton
2006-01-30  9:46             ` Arjan van de Ven
2006-01-30  9:51               ` Jan Engelhardt
2006-01-30  9:54                 ` Arjan van de Ven
2006-01-30 10:25                   ` Jan Engelhardt [this message]
2006-01-30 10:31                     ` Arjan van de Ven
2006-01-30 10:36                       ` Jan Engelhardt
2006-01-30 10:39                         ` Arjan van de Ven
2006-01-30 10:46                           ` Jan Engelhardt

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