libvirt/SOURCES/libvirt-qemu-blockjob-Handle-bitmaps-after-finish-of-normal-block-commit.patch
2021-10-08 13:11:20 +00:00

96 lines
3.1 KiB
Diff

From 629629bccbaef81ab1e187fbf5aab4e07d49f350 Mon Sep 17 00:00:00 2001
Message-Id: <629629bccbaef81ab1e187fbf5aab4e07d49f350@dist-git>
From: Peter Krempa <pkrempa@redhat.com>
Date: Mon, 16 Mar 2020 22:12:31 +0100
Subject: [PATCH] qemu: blockjob: Handle bitmaps after finish of normal
block-commit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Merge the bitmaps into base of the block commit after the job finishes.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
(cherry picked from commit db450a742224fb96d8f4d45fde3d0c19faeabfdb)
https://bugzilla.redhat.com/show_bug.cgi?id=1799013
Message-Id: <dcf1a67be965850ccd4b35f3ef4587dee5c77151.1584391727.git.pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/qemu/qemu_blockjob.c | 52 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 63f1cc79c3..0b7e1403e6 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -1049,6 +1049,55 @@ qemuBlockJobDeleteImages(virQEMUDriverPtr driver,
}
}
+
+/**
+ * qemuBlockJobProcessEventCompletedCommitBitmaps:
+ *
+ * Handles the bitmap changes after commit. This returns -1 on monitor failures.
+ */
+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;
+
+ return 0;
+}
+
+
/**
* qemuBlockJobProcessEventCompletedCommit:
* @driver: qemu driver object
@@ -1106,6 +1155,9 @@ qemuBlockJobProcessEventCompletedCommit(virQEMUDriverPtr driver,
if (!n)
return;
+ if (qemuBlockJobProcessEventCompletedCommitBitmaps(vm, job, asyncJob) < 0)
+ return;
+
/* revert access to images */
qemuDomainStorageSourceAccessAllow(driver, vm, job->data.commit.base,
true, false, false);
--
2.25.1