From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Mon, 25 Jun 2012 17:15:58 +0000 (+0200)
Subject: drbd: fix max_bio_size to be unsigned
X-Git-Tag: v3.6-rc1~6^2~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db141b2f42b485b700465fe2401fbe65c65b190c;p=pandora-kernel.git

drbd: fix max_bio_size to be unsigned

We capped our max_bio_size respectively max_hw_sectors with
min_t(int, lower level limit, our limit);
unfortunately, some drivers, e.g. the kvm virtio block driver, initialize their
limits to "-1U", and that is of course a smaller "int" value than our limit.

Impact: we started to request 16 MB resync requests,
which lead to protocol error and a reconnect loop.

Fix all relevant constants and parameters to be unsigned int.

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