[libvirt] [PATCH] qemu: Fix IOThread pids lost after qemuProcessReconnect

[Jie Wang]

>From fca1732c0e1f691fb25c614349d5486bbc73a109 Mon Sep 17 00:00:00 2001
From: Jie Wang <wangjie88 at huawei.com>
Date: Wed, 17 Oct 2018 22:55:51 +0800
Subject: [PATCH] qemu: Fix IOThread pids lost after qemuProcessReconnect

IOThread pids info will lost after libvirtd restart, then
if we call pinIOThread, sched_setaffinity will be called with
pid 0, not IOThread pid. So pinIOThread cannot work normally.

Signed-off-by: Jie Wang <wangjie88.huawei.com>
---
 src/qemu/qemu_process.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 40d35cbe6b..5bf55721d2 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -7650,6 +7650,9 @@ qemuProcessReconnect(void *opaque)
 
     qemuDomainVcpuPersistOrder(obj->def);
 
+    if (qemuProcessDetectIOThreadPIDs(driver, obj, QEMU_ASYNC_JOB_NONE) < 0)
+        goto error;
+
     if (qemuSecurityReserveLabel(driver->securityManager, obj->def, obj->pid) < 0)
         goto error;
 
-- 
2.16.2.windows.1