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From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Greg Kroah-Hartman <greg@kroah.com>
Cc: schwidefsky@de.ibm.com,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH] s390 (8/10): zfcp fixes
Date: Wed, 31 Mar 2004 19:57:18 +0200	[thread overview]
Message-ID: <200403311957.18451.heiko.carstens@de.ibm.com> (raw)

Hi Greg,

>> I'll ask because the zfcp patches are still pending and I want to get this
>> issue resolved before the next try to get them integrated.
>I think you need to talk to the scsi people, as kfree() should _never_
>need to be set as the release function. There's something just wrong
>with the design if that is necessary.

Actually this issue is not SCSI related, but a generic problem that one
can run into when fiddling around with modules / module unloading.

This was already discussed elsewhere. Please have a look here:

http://lwn.net/Articles/67421/
(paragraph "Module unloading in a reference counted world")

and here for the whole thread:

http://www.ussg.iu.edu/hypermail/linux/kernel/0401.2/1832.html
(just saw that you participated there :)

I would be more than happy to have a nice release function for the zfcp
generated objects, but I don't think this is currently possible without
having the potential problem to run into an Oops after module unloading.

Heiko


             reply	other threads:[~2004-03-31 17:58 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-31 17:57 Heiko Carstens [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-03-29 10:03 [PATCH] s390 (8/10): zfcp fixes Martin Schwidefsky
2004-03-30  1:37 ` Greg KH
2004-03-17 12:06 Martin Schwidefsky
2004-03-16 13:51 Martin Schwidefsky
2004-03-16 21:52 ` James Bottomley
2004-03-17 10:35   ` Heiko Carstens
2004-03-12 20:29 Martin Schwidefsky
2004-03-13  1:41 ` Greg KH
2004-03-15  9:18   ` Martin Schwidefsky
2004-03-16 17:08     ` Greg KH
2004-03-12 19:38 Martin Schwidefsky
2004-03-12 20:19 ` Christoph Hellwig
2004-03-13  1:40 ` Greg KH

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