From: Michael S. Tsirkin <mst@redhat.com>
Date: Thu, 17 Mar 2011 08:53:33 +0000 (+0200)
Subject: KVM: fix crash on irqfd deassign
X-Git-Tag: v2.6.39-rc3~19^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e02fb963352c5ad075d80dd3e852fbee9585575;p=pandora-kernel.git

KVM: fix crash on irqfd deassign

irqfd in kvm used flush_work incorrectly: it assumed that work scheduled
previously can't run after flush_work, but since kvm uses a non-reentrant
workqueue (by means of schedule_work) we need flush_work_sync to get that
guarantee.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Jean-Philippe Menil <jean-philippe.menil@univ-nantes.fr>
Tested-by: Jean-Philippe Menil <jean-philippe.menil@univ-nantes.fr>
Signed-off-by: Avi Kivity <avi@redhat.com>
---

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