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From 6bdff9954d46304a278bff833ecb15450c19c4f5 Mon Sep 17 00:00:00 2001
From: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
Date: Thu, 8 May 2014 11:52:12 +0200
Subject: [PATCH 05/13] Disallow outward migration while awaiting incoming migration
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RH-Author: Dr. David Alan Gilbert (git) <dgilbert@redhat.com>
Message-id: <1399549932-9977-1-git-send-email-dgilbert@redhat.com>
Patchwork-id: 58747
O-Subject: [RHEL7.1 qemu-kvm PATCH 1/1] Disallow outward migration while awaiting incoming migration
Bugzilla: 1086987
RH-Acked-by: Amos Kong <akong@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Markus Armbruster <armbru@redhat.com>

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1086987
brew: https://brewweb.devel.redhat.com/taskinfo?taskID=7432751
upstream: ca99993adc9205c905dba5dc1bb819959ada7200

QEMU will assert if you attempt to start an outgoing migration on
a QEMU that's sitting waiting for an incoming migration (started
with -incoming), so disallow it with a proper error.

(This is a fix for https://bugzilla.redhat.com/show_bug.cgi?id=1086987 )

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit ca99993adc9205c905dba5dc1bb819959ada7200)
---
 migration.c | 5 +++++
 1 file changed, 5 insertions(+)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 migration.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/migration.c b/migration.c
index 7efbd25..44b993a 100644
--- a/migration.c
+++ b/migration.c
@@ -430,6 +430,11 @@ void qmp_migrate(const char *uri, bool has_blk, bool blk,
         return;
     }
 
+    if (runstate_check(RUN_STATE_INMIGRATE)) {
+        error_setg(errp, "Guest is waiting for an incoming migration");
+        return;
+    }
+
     if (qemu_savevm_state_blocked(errp)) {
         return;
     }
-- 
1.7.1