From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Tue, 16 Nov 2010 14:30:44 +0000 (+0100)
Subject: drbd: Fixed race condition in drbd_queue_bitmap_io
X-Git-Tag: v2.6.39-rc1~37^2~93
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22afd7ee94c1c5857323b677267ba8bace09bcef;p=pandora-kernel.git

drbd: Fixed race condition in drbd_queue_bitmap_io

May only test for ap_bio_cnt == 0 under req_lock. It can increase
only under req_lock.

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