From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Mon, 7 Mar 2011 08:49:02 +0000 (+0100)
Subject: drbd: fix drbd_delete_device: remove vnr from volumes; idr_remove(); synchronize_rcu... 
X-Git-Tag: v3.8-rc1~78^2~18^2~420
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=569083c08dc16c043b4bdd473d41ff85a2b2df9e;p=pandora-kernel.git

drbd: fix drbd_delete_device: remove vnr from volumes; idr_remove(); synchronize_rcu(); before cleanup

Still missing: rcu_readlock() on the various call sites that
access/iterate over those idrs.

We don't need a specific write lock, as we only modify from
configuration context, which is already strictly serialized.

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