On 3/11/20 7:56 AM, Peter Krempa wrote:
Merge the bitmaps into base of the block commit after the job finishes.
Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
src/qemu/qemu_blockjob.c | 53 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 63f1cc79c3..ed7959175a 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -1049,6 +1049,56 @@ qemuBlockJobDeleteImages(virQEMUDriverPtr driver,
}
}
+
+/**
+ * qemuBlockJobProcessEventCompletedCommitBitmaps:
+ *
+ * Handles the bitmap changes after commit. This function shall return -1 on
+ * monitor failures.
s/shall return/returns/ sounds less stodgy :)
+ */
+static int
+qemuBlockJobProcessEventCompletedCommitBitmaps(virDomainObjPtr vm,
+ qemuBlockJobDataPtr job,
+ qemuDomainAsyncJob asyncJob)
+{
+ qemuDomainObjPrivatePtr priv = vm->privateData;
+ g_autoptr(virHashTable) blockNamedNodeData = NULL;
+ g_autoptr(virJSONValue) actions = NULL;
+
+ if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_REOPEN))
+ return 0;
+
+ if (!(blockNamedNodeData = qemuBlockGetNamedNodeData(vm, asyncJob)))
+ return -1;
+
+ if (qemuBlockBitmapsHandleCommitFinish(job->data.commit.top,
+ job->data.commit.base,
+ blockNamedNodeData,
+ &actions,
+ job->data.commit.disabledBitmapsBase) < 0)
+ return 0;
+
+ if (!actions)
+ return 0;
+
+ if (qemuBlockReopenReadWrite(vm, job->data.commit.base, asyncJob) < 0)
+ return -1;
+
+ if (qemuDomainObjEnterMonitorAsync(priv->driver, vm, asyncJob) < 0)
+ return -1;
+
+ qemuMonitorTransaction(priv->mon, &actions);
+
+ if (qemuDomainObjExitMonitor(priv->driver, vm) < 0)
+ return -1;
+
+ if (qemuBlockReopenReadOnly(vm, job->data.commit.base, asyncJob) < 0)
+ return -1;
Earlier in the series, you ignored failure to restore readonly (leaving
things read-write isn't ideal, but isn't a show-stopper to correct
operation). Any reason why that use was different than this where you
treat it as fatal?
Reviewed-by: Eric Blake <eblake@xxxxxxxxxx>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
