From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 9 Jul 2014 19:18:32 +0000 (+0200)
Subject: drbd: fix regression 'out of mem, failed to invoke fence-peer helper'
X-Git-Tag: cleanup-for-v3.18~208^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbc1c5e8ad6dfebf9d13b8a4ccdf66c92913eac9;p=pandora-kernel.git

drbd: fix regression 'out of mem, failed to invoke fence-peer helper'

Since linux kernel 3.13, kthread_run() internally uses
wait_for_completion_killable().  We sometimes may use kthread_run()
while we still have a signal pending, which we used to kick our threads
out of potentially blocking network functions, causing kthread_run() to
mistake that as a new fatal signal and fail.

Fix: flush_signals() before kthread_run().

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>
---

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