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From: Ben Greear <greearb@candelatech.com>
To: NetDev <netdev@vger.kernel.org>
Subject: Question on device events and unregister_netdev.
Date: Tue, 11 Jul 2006 16:27:25 -0700	[thread overview]
Message-ID: <44B433DD.8070100@candelatech.com> (raw)

Hello!

I'm working on stacking some virtual interfaces, and ran into a problem with
locking.

Basically, I have an ethernet-like device, and on top of that I am putting
802.1Q vlans..and on top of that, some other vlan (macvlan).

In the event notifier for the vlan, I attempt to delete all vlans who's
under-lying device is going away.  I do the same for the macvlan.

Currently, I am setting a deadlock warning because the macvlan code
is calling unregister_netdev, but the 'rmmod' method already has
a lock in there due to having earlier called unregister_netdev on the
.1q vlan.


So, the question is:  Should I be calling unregister_netdev from the notifier
callback?

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


             reply	other threads:[~2006-07-11 23:27 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-11 23:27 Ben Greear [this message]
2006-07-11 23:43 ` Question on device events and unregister_netdev David Miller
2006-07-11 23:48   ` Ben Greear

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