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drbd: Removing drbd_cfg_rwsem
authorPhilipp Reisner <philipp.reisner@linbit.com>
Thu, 5 May 2011 14:13:10 +0000 (16:13 +0200)
committerPhilipp Reisner <philipp.reisner@linbit.com>
Thu, 8 Nov 2012 15:55:48 +0000 (16:55 +0100)
 * Updates to all configuration items is done under genl_lock().
   Including removal of mdevs or tconns.
 * All read non sleeping read sides are protected by rcu
 * All sleeping read sides keep reference counts to keep the
   objects alive

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

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