From: Rusty Russell <rusty@rustcorp.com.au>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Greg K-H <greg@kroah.com>, Tejun Heo <htejun@gmail.com>
Subject: Re: [Patch -mm 0/3] RFC: module unloading vs. release function
Date: Tue, 17 Apr 2007 12:55:17 +1000 [thread overview]
Message-ID: <1176778517.14322.276.camel@localhost.localdomain> (raw)
In-Reply-To: <20070416204410.GA5844@martell.zuzino.mipt.ru>
On Tue, 2007-04-17 at 00:44 +0400, Alexey Dobriyan wrote:
> On Mon, Apr 16, 2007 at 03:38:52PM -0400, Alan Stern wrote:
> > 3. Change the module code so that rmmod can return _before_ the
> > module is actually unloaded from memory (but after the module's
> > exit routine has completed). This will lead to more problems.
> > For example, what if someone tries to modprobe my_module back
> > again before it has finished unloading?
>
> This problem (or its absence) must be already in tree: module_mutex is
> dropped for the duration of ->exit() function, so init_module(2) could
> load new old module meanwhile.
Only if you give it a different name when loading it the second time.
Rusty.
next prev parent reply other threads:[~2007-04-17 2:56 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-16 17:36 [Patch -mm 0/3] RFC: module unloading vs. release function Cornelia Huck
2007-04-16 18:30 ` Dmitry Torokhov
2007-04-16 18:47 ` Greg KH
2007-04-16 19:03 ` Dmitry Torokhov
2007-04-16 19:11 ` Greg KH
2007-04-16 20:20 ` Dmitry Torokhov
2007-04-16 19:38 ` Alan Stern
2007-04-16 19:47 ` Dmitry Torokhov
2007-04-16 19:52 ` Greg KH
2007-04-16 20:18 ` Dmitry Torokhov
2007-04-16 21:02 ` Alan Stern
2007-04-17 7:49 ` Cornelia Huck
2007-04-16 20:44 ` Alexey Dobriyan
2007-04-17 2:55 ` Rusty Russell [this message]
2007-04-17 7:36 ` Cornelia Huck
2007-04-16 18:53 ` Greg KH
2007-04-17 18:41 ` [PATCH RFD] alternative kobject release wait mechanism Tejun Heo
2007-04-17 18:49 ` Tejun Heo
2007-04-18 8:11 ` Cornelia Huck
2007-04-18 8:46 ` Tejun Heo
2007-04-18 9:35 ` Cornelia Huck
2007-04-18 9:55 ` Tejun Heo
2007-04-18 8:07 ` Cornelia Huck
2007-04-18 8:36 ` Tejun Heo
2007-04-18 14:53 ` Alan Stern
2007-04-18 15:26 ` Cornelia Huck
2007-04-18 15:34 ` Tejun Heo
2007-04-18 15:45 ` Tejun Heo
2007-04-18 19:07 ` Alan Stern
2007-04-20 5:27 ` Tejun Heo
2007-04-20 9:11 ` Cornelia Huck
2007-04-20 15:01 ` Alan Stern
2007-04-20 15:57 ` Dmitry Torokhov
2007-04-21 15:19 ` Alan Stern
2007-04-20 15:40 ` Alan Stern
2007-04-21 0:03 ` Greg KH
2007-04-21 21:36 ` Alan Stern
2007-04-22 17:40 ` Greg KH
2007-04-23 7:08 ` Cornelia Huck
2007-04-23 19:47 ` Alan Stern
2007-04-24 19:38 ` Alan Stern
2007-04-25 9:00 ` Cornelia Huck
2007-04-25 20:13 ` Alan Stern
2007-04-26 8:21 ` Cornelia Huck
2007-04-26 14:58 ` Alan Stern
2007-04-26 15:12 ` Cornelia Huck
2007-04-18 16:11 ` Alan Stern
2007-04-18 16:38 ` Tejun Heo
2007-04-18 16:41 ` Dmitry Torokhov
2007-04-19 12:51 ` Cornelia Huck
2007-04-19 13:13 ` Dmitry Torokhov
2007-04-19 13:48 ` Cornelia Huck
2007-04-19 14:21 ` Dmitry Torokhov
2007-04-20 5:59 ` Tejun Heo
2007-04-20 16:35 ` Dmitry Torokhov
2007-04-20 16:52 ` Tejun Heo
2007-04-20 17:59 ` Dmitry Torokhov
2007-04-23 6:40 ` Tejun Heo
2007-04-23 6:53 ` Greg KH
2007-04-19 17:19 ` Alan Stern
2007-04-19 18:39 ` Dmitry Torokhov
2007-04-19 22:37 ` Alan Stern
2007-04-20 16:35 ` Dmitry Torokhov
2007-04-21 15:30 ` Alan Stern
2007-04-18 15:06 ` Cornelia Huck
2007-04-18 16:06 ` Tejun Heo
2007-04-19 13:29 ` Cornelia Huck
2007-04-19 14:20 ` Alan Stern
2007-04-19 14:49 ` Cornelia Huck
2007-04-20 9:04 ` Cornelia Huck
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