From: Russell King <rmk+lkml@arm.linux.org.uk>
To: viro@parcelfarce.linux.theplanet.co.uk
Cc: Maneesh Soni <maneesh@in.ibm.com>,
LKML <linux-kernel@vger.kernel.org>, Greg KH <greg@kroah.com>
Subject: Re: [RFC] fix sysfs symlinks
Date: Thu, 15 Apr 2004 09:17:52 +0100 [thread overview]
Message-ID: <20040415091752.A24815@flint.arm.linux.org.uk> (raw)
In-Reply-To: <20040414070227.GA31500@parcelfarce.linux.theplanet.co.uk>; from viro@parcelfarce.linux.theplanet.co.uk on Wed, Apr 14, 2004 at 08:02:27AM +0100
On Wed, Apr 14, 2004 at 08:02:27AM +0100, viro@parcelfarce.linux.theplanet.co.uk wrote:
> On Wed, Apr 14, 2004 at 12:10:16PM +0530, Maneesh Soni wrote:
> > I am not sure, if pinning the kobject for the life time of symlink (dentry)
> > may result in same problems like rmmod hang which we saw in case of pinning
> > kobject for the life time of its directory (dentry).
>
> Erm... If rmmod _ever_ waits for refcount on kobject to reach zero, it's
> already broken. Do you have any examples of such behaviour?
Every single module which unregisters a struct device_driver.
* driver_unregister - remove driver from system.
* @drv: driver.
...
* This will block until the driver refcount reaches 0, and it is
* released. Only modular drivers will call this function, and we
* have to guarantee that it won't complete, letting the driver
* unload until all references are gone.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
next prev parent reply other threads:[~2004-04-15 8:17 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-13 12:40 [RFC] fix sysfs symlinks Maneesh Soni
2004-04-13 13:36 ` viro
2004-04-14 6:40 ` Maneesh Soni
2004-04-14 7:02 ` viro
2004-04-14 7:17 ` Maneesh Soni
2004-04-14 7:27 ` viro
2004-04-15 8:17 ` Russell King [this message]
2004-04-15 10:38 ` viro
2004-04-15 15:19 ` Russell King
2004-04-15 16:10 ` Greg KH
2004-04-15 16:13 ` viro
2004-04-15 19:14 ` viro
2004-04-15 21:27 ` Greg KH
2004-04-17 6:15 ` Rusty Russell
2004-04-17 19:39 ` viro
2004-04-17 23:45 ` Rusty Russell
2004-04-15 22:02 ` Greg KH
2004-04-16 15:24 ` viro
2004-04-16 18:03 ` Horst von Brand
2004-04-16 18:07 ` viro
2004-04-16 22:37 ` Greg KH
2004-04-16 23:46 ` viro
2004-04-17 0:03 ` Jeff Garzik
2004-04-17 8:07 ` Russell King
2004-04-17 8:22 ` viro
2004-04-20 16:16 ` Greg KH
2004-04-21 10:11 ` Maneesh Soni
2004-04-22 21:37 ` viro
2004-04-23 8:52 ` Maneesh Soni
2004-04-23 9:26 ` viro
2004-04-29 13:03 ` Maneesh Soni
2004-04-29 15:41 ` viro
2004-04-30 10:05 ` Maneesh Soni
2004-04-30 10:13 ` [RFC 0/2] kobject_set_name - error handling Maneesh Soni
2004-04-30 10:14 ` [RFC 1/2] " Maneesh Soni
2004-04-30 10:17 ` [RFC 2/2] " Maneesh Soni
2004-05-04 13:08 ` Maneesh Soni
2004-04-30 12:48 ` [RFC 1/2] " Dmitry Torokhov
2004-05-04 5:39 ` Maneesh Soni
2004-05-04 9:19 ` Maneesh Soni
2004-05-07 22:25 ` Greg KH
2003-05-09 10:05 ` Maneesh Soni
2003-05-09 10:09 ` [RFC 2/2] sysfs_rename_dir-cleanup Maneesh Soni
2004-05-11 23:33 ` Greg KH
2004-10-07 5:16 ` Maneesh Soni
2004-10-07 5:38 ` Maneesh Soni
2004-05-14 19:10 ` Greg KH
2004-05-11 23:32 ` [RFC 1/2] kobject_set_name - error handling Greg KH
2004-04-17 0:15 ` [RFC] fix sysfs symlinks Greg KH
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