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[libvirt] [PATCH 1/3] qemu: Fix iothreads issue



If there are no iothreads, then return from qemuProcessDetectIOThreadPIDs
without error; otherwise, the following occurs:

error: Failed to start domain $dom
error: An error occurred, but the cause is unknown
Signed-off-by: John Ferlan <jferlan redhat com>
---
 src/qemu/qemu_process.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 6c412db..a2efdca 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -2110,9 +2110,13 @@ qemuProcessDetectIOThreadPIDs(virQEMUDriverPtr driver,
         goto cleanup;
     niothreads = qemuMonitorGetIOThreads(priv->mon, &iothreads);
     qemuDomainObjExitMonitor(driver, vm);
-    if (niothreads <= 0)
+    if (niothreads < 0)
         goto cleanup;
 
+    /* Nothing to do */
+    if (niothreads == 0)
+        return 0;
+
     if (niothreads != vm->def->iothreads) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("got wrong number of IOThread pids from QEMU monitor. "
-- 
1.9.3


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