From 7889fb1123cbe6aca437797005b8b18b3d5ae93a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Hyman=20Huang=28=E9=BB=84=E5=8B=87=29?= Date: Sun, 20 Feb 2022 21:28:09 +0800 Subject: [PATCH 4/7] qemu_driver: Probe capability before calculating dirty page rate MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Probing QEMU_CAPS_CALC_DIRTY_RATE capability in advance in case of failure when calculating dirty page rate. Signed-off-by: Hyman Huang(黄勇) Signed-off-by: Michal Privoznik Reviewed-by: Michal Privoznik --- src/qemu/qemu_driver.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 62806da86a..19d32b5fa3 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -23332,6 +23332,16 @@ qemuDomainStartDirtyRateCalc(virDomainPtr dom, if (virDomainStartDirtyRateCalcEnsureACL(dom->conn, vm->def) < 0) goto cleanup; + if (virDomainObjCheckActive(vm) < 0) + goto cleanup; + + priv = vm->privateData; + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CALC_DIRTY_RATE)) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("QEMU does not support calculating dirty page rate")); + goto cleanup; + } + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) goto cleanup; @@ -23343,7 +23353,6 @@ qemuDomainStartDirtyRateCalc(virDomainPtr dom, VIR_DEBUG("Calculate dirty rate in next %d seconds", seconds); - priv = vm->privateData; qemuDomainObjEnterMonitor(driver, vm); ret = qemuMonitorStartDirtyRateCalc(priv->mon, seconds); -- 2.27.0