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From 85658fdaaf7b24f64c31950f4bf710c0dcdafacd Mon Sep 17 00:00:00 2001
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Message-Id: <85658fdaaf7b24f64c31950f4bf710c0dcdafacd@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 4 Feb 2020 15:08:27 +0100
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Subject: [PATCH] qemuDomainBlockPivot: Copy bitmaps backing checkpoints for
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virDomainBlockCopy
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Use qemuBlockBitmapsHandleBlockcopy to calculate bitmaps to copy over
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for a block-copy job.
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We copy them when pivoting to the new image as at that point we are
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certain that we don't dirty any bitmap unnecessarily.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit 54030892f5122ef120c1e8ffb6e0546871030272)
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https://bugzilla.redhat.com/show_bug.cgi?id=1207659
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Message-Id: <c60a7a567a634836370fc9c0c38317569fa5a22d.1580824112.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/qemu/qemu_driver.c | 28 +++++++++++++++++++++++++---
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1 file changed, 25 insertions(+), 3 deletions(-)
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diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
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index 71c75b25a6..caeb76a20c 100644
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--- a/src/qemu/qemu_driver.c
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+++ b/src/qemu/qemu_driver.c
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@@ -17552,6 +17552,7 @@ qemuDomainBlockPivot(virQEMUDriverPtr driver,
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int ret = -1;
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qemuDomainObjPrivatePtr priv = vm->privateData;
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bool blockdev = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV);
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+ g_autoptr(virJSONValue) actions = NULL;
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switch ((qemuBlockJobType) job->type) {
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case QEMU_BLOCKJOB_TYPE_NONE:
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@@ -17572,6 +17573,20 @@ qemuDomainBlockPivot(virQEMUDriverPtr driver,
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return -1;
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case QEMU_BLOCKJOB_TYPE_COPY:
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+ if (blockdev && !job->jobflagsmissing) {
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+ g_autoptr(virHashTable) blockNamedNodeData = NULL;
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+ bool shallow = job->jobflags & VIR_DOMAIN_BLOCK_COPY_SHALLOW;
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+
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+ if (!(blockNamedNodeData = qemuBlockGetNamedNodeData(vm, QEMU_ASYNC_JOB_NONE)))
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+ return -1;
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+
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+ if (qemuBlockBitmapsHandleBlockcopy(disk->src, disk->mirror,
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+ blockNamedNodeData,
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+ shallow, &actions) < 0)
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+ return -1;
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+ }
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+ break;
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+
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case QEMU_BLOCKJOB_TYPE_ACTIVE_COMMIT:
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break;
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}
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@@ -17584,10 +17599,17 @@ qemuDomainBlockPivot(virQEMUDriverPtr driver,
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}
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qemuDomainObjEnterMonitor(driver, vm);
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- if (blockdev)
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- ret = qemuMonitorJobComplete(priv->mon, job->name);
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- else
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+ if (blockdev) {
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+ int rc = 0;
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+
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+ if (actions)
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+ rc = qemuMonitorTransaction(priv->mon, &actions);
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+
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+ if (rc == 0)
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+ ret = qemuMonitorJobComplete(priv->mon, job->name);
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+ } else {
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ret = qemuMonitorDrivePivot(priv->mon, job->name);
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+ }
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if (qemuDomainObjExitMonitor(driver, vm) < 0)
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return -1;
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--
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2.25.0
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