From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Mon, 10 Nov 2014 16:21:12 +0000 (+0100)
Subject: drbd: fix resync throttling initialization
X-Git-Tag: omap-for-v3.19/fixes-rc1~94^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff8bd88b73fad369a12465dfa52ad5c0bf088ced;p=pandora-kernel.git

drbd: fix resync throttling initialization

If for some reason DRBD resync was the only activity on a backend
device, drbd_rs_c_min_rate_throttle() would mistakenly decide that it is
still initialization time, and keep throttling the resync.

This patch explicitly initializes ->rs_last_events to the current
backend event counters, and drops the rs_last_events == 0 from the
throttle condition.

Reported-by: Mikhail Sugakov <msugakov@amazon.de>

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

Reading git-diff-tree failed