From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 24 Nov 2010 09:37:35 +0000 (+0100)
Subject: drbd: remove /proc/drbd before unregistering from netlink
X-Git-Tag: v2.6.39-rc1~37^2~87
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17a93f3007c13003c739a19d0814cb5c2d21daba;p=pandora-kernel.git

drbd: remove /proc/drbd before unregistering from netlink

There still exists a (theoretical) race on module unload, where
/proc/drbd may still exist, but the netlink callback has been
unregistered already, allowing drbdsetup to shout without listeners,
and get no reply.

Reorder remove_proc_entry and unregister of netlink callback.
drbdsetup first checks for existence of the proc entry,
and if that is missing, won't even try to contact the module.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---

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