12:09 p.m.
I put some blockdev awareness into the non-shared storage migration NBD
code but it was not complete. Seeing it there mislead me thinking that
it's done.
Fix it now.
Peter Krempa (8):
qemu: migration: Simplify handling of 'diskAlias' when adding NBD
exports
qemu: migration: Properly export backend for NBD storage migration
qemu: migration: Access job name from job struct
qemu: migration: Simplify cleanup in qemuMigrationSrcNBDCopyCancelOne
qemu: blockjob: Allow NULL 'mirror' for block copy jobs due to
migration
qemu: migration: Split out setup of the migration target
qemu: migration: Mention disk target rather than the drive name in
debug msg
qemu: migration: Properly setup mirror for blockdev configurations
src/qemu/qemu_blockjob.c | 11 +++-
src/qemu/qemu_migration.c | 115 ++++++++++++++++++++++++--------------
2 files changed, 80 insertions(+), 46 deletions(-)
--
2.23.0
12:09 p.m.
New subject: [libvirt] [PATCH 1/8] qemu: migration: Simplify handling of 'diskAlias' when adding NBD exports
Declare the variable inside the loop with automatic clearing.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index dabdda2715..af22dfb48d 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -377,7 +377,6 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
int ret = -1;
qemuDomainObjPrivatePtr priv = vm->privateData;
unsigned short port = 0;
- char *diskAlias = NULL;
size_t i;
virStorageNetHostDef server = {
.name = (char *)listenAddr, /* cast away const */
@@ -392,6 +391,7 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
for (i = 0; i < vm->def->ndisks; i++) {
virDomainDiskDefPtr disk = vm->def->disks[i];
+ g_autofree char *diskAlias = NULL;
/* check whether disk should be migrated */
if (!qemuMigrationAnyCopyDisk(disk, nmigrate_disks, migrate_disks))
@@ -404,7 +404,6 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
goto cleanup;
}
- VIR_FREE(diskAlias);
if (!(diskAlias = qemuAliasDiskDriveFromDisk(disk)))
goto cleanup;
@@ -433,7 +432,6 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
ret = 0;
cleanup:
- VIR_FREE(diskAlias);
if (ret < 0 && nbdPort == 0)
virPortAllocatorRelease(port);
return ret;
--
2.23.0
2:32 p.m.
New subject: [libvirt] [PATCH 1/8] qemu: migration: Simplify handling of 'diskAlias' when adding NBD exports
On 12/6/19 12:09 PM, Peter Krempa wrote:
Declare the variable inside the loop with automatic clearing.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 2/8] qemu: migration: Properly export backend for NBD storage migration
With -blockdev we must use the nodename as the export but we must keep
the name of the export as it was before to ensure compatiblity.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index af22dfb48d..2416dbe432 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -392,6 +392,8 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
for (i = 0; i < vm->def->ndisks; i++) {
virDomainDiskDefPtr disk = vm->def->disks[i];
g_autofree char *diskAlias = NULL;
+ const char *exportname = NULL;
+ const char *devicename = NULL;
/* check whether disk should be migrated */
if (!qemuMigrationAnyCopyDisk(disk, nmigrate_disks, migrate_disks))
@@ -407,6 +409,14 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
if (!(diskAlias = qemuAliasDiskDriveFromDisk(disk)))
goto cleanup;
+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV)) {
+ exportname = diskAlias;
+ devicename = disk->src->nodeformat;
+ } else {
+ exportname = NULL;
+ devicename = diskAlias;
+ }
+
if (qemuDomainObjEnterMonitorAsync(driver, vm,
QEMU_ASYNC_JOB_MIGRATION_IN) < 0)
goto cleanup;
@@ -422,7 +432,7 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
goto exit_monitor;
}
- if (qemuMonitorNBDServerAdd(priv->mon, diskAlias, NULL, true, NULL) < 0)
+ if (qemuMonitorNBDServerAdd(priv->mon, devicename, exportname, true, NULL)
< 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
--
2.23.0
2:35 p.m.
New subject: [libvirt] [PATCH 2/8] qemu: migration: Properly export backend for NBD storage migration
On 12/6/19 12:09 PM, Peter Krempa wrote:
With -blockdev we must use the nodename as the export but we must
keep
the name of the export as it was before to ensure compatiblity.
compatibility
Makes sense - this is code on the destination, but we may be migrating
storage from an older libvirt that wasn't using blockdev, so we must
export the same name as expected by that older client (our goal is to
allow migration as a way to upgrade from a -device command line to a
-blockdev command line, without any guest downtime)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 3/8] qemu: migration: Access job name from job struct
qemuMigrationSrcNBDCopyCancelOne uses the block job data structure but
generated it's own job name rather than taking it from the block job
data.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 2416dbe432..b14a1bcd15 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -649,7 +649,6 @@ qemuMigrationSrcNBDCopyCancelOne(virQEMUDriverPtr driver,
qemuDomainAsyncJob asyncJob)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- char *diskAlias = NULL;
int ret = -1;
int status;
int rv;
@@ -668,13 +667,10 @@ qemuMigrationSrcNBDCopyCancelOne(virQEMUDriverPtr driver,
goto cleanup;
}
- if (!(diskAlias = qemuAliasDiskDriveFromDisk(disk)))
- return -1;
-
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
goto cleanup;
- rv = qemuMonitorBlockJobCancel(priv->mon, diskAlias);
+ rv = qemuMonitorBlockJobCancel(priv->mon, job->name);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
goto cleanup;
@@ -682,7 +678,6 @@ qemuMigrationSrcNBDCopyCancelOne(virQEMUDriverPtr driver,
ret = 0;
cleanup:
- VIR_FREE(diskAlias);
return ret;
}
--
2.23.0
5 p.m.
New subject: [libvirt] [PATCH 3/8] qemu: migration: Access job name from job struct
On 12/6/19 12:09 PM, Peter Krempa wrote:
qemuMigrationSrcNBDCopyCancelOne uses the block job data structure
but
generated it's own job name rather than taking it from the block job
data.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 4/8] qemu: migration: Simplify cleanup in qemuMigrationSrcNBDCopyCancelOne
Now that the cleanup section does not exist remove the label.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index b14a1bcd15..9062be38ab 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -649,7 +649,6 @@ qemuMigrationSrcNBDCopyCancelOne(virQEMUDriverPtr driver,
qemuDomainAsyncJob asyncJob)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- int ret = -1;
int status;
int rv;
@@ -659,26 +658,22 @@ qemuMigrationSrcNBDCopyCancelOne(virQEMUDriverPtr driver,
case VIR_DOMAIN_BLOCK_JOB_CANCELED:
if (failNoJob) {
qemuMigrationNBDReportMirrorError(job, disk->dst);
- goto cleanup;
+ return -1;
}
G_GNUC_FALLTHROUGH;
case VIR_DOMAIN_BLOCK_JOB_COMPLETED:
- ret = 1;
- goto cleanup;
+ return 1;
}
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
- goto cleanup;
+ return -1;
rv = qemuMonitorBlockJobCancel(priv->mon, job->name);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
- goto cleanup;
-
- ret = 0;
+ return -1;
- cleanup:
- return ret;
+ return 0;
}
--
2.23.0
5:01 p.m.
New subject: [libvirt] [PATCH 4/8] qemu: migration: Simplify cleanup in qemuMigrationSrcNBDCopyCancelOne
On 12/6/19 12:09 PM, Peter Krempa wrote:
Now that the cleanup section does not exist remove the label.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 5/8] qemu: blockjob: Allow NULL 'mirror' for block copy jobs due to migration
The non-shared-storage migration tracks the storage source used
explicitly in the migration data so we must allow for processing of the
block job which has NULL mirror as the mirror will not be populated.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index baa79ea80c..2773acc990 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -1139,7 +1139,9 @@ qemuBlockJobProcessEventConcludedCopyPivot(virQEMUDriverPtr driver,
{
VIR_DEBUG("copy job '%s' on VM '%s' pivoted", job->name,
vm->def->name);
- if (!job->disk)
+ /* mirror may be NULL for copy job corresponding to migragion */
+ if (!job->disk ||
+ !job->disk->mirror)
return;
/* for shallow copy without reusing external image the user can either not
@@ -1166,7 +1168,9 @@ qemuBlockJobProcessEventConcludedCopyAbort(virQEMUDriverPtr driver,
{
VIR_DEBUG("copy job '%s' on VM '%s' aborted", job->name,
vm->def->name);
- if (!job->disk)
+ /* mirror may be NULL for copy job corresponding to migragion */
+ if (!job->disk ||
+ !job->disk->mirror)
return;
qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob,
job->disk->mirror);
@@ -1383,7 +1387,8 @@ qemuBlockJobEventProcess(virQEMUDriverPtr driver,
break;
case QEMU_BLOCKJOB_STATE_READY:
- if (job->disk && job->disk->mirror) {
+ /* mirror may be NULL for copy job corresponding to migragion */
+ if (job->disk) {
job->disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_READY;
qemuBlockJobEmitEvents(driver, vm, job->disk, job->type,
job->newstate);
}
--
2.23.0
5:03 p.m.
New subject: [libvirt] [PATCH 5/8] qemu: blockjob: Allow NULL 'mirror' for block copy jobs due to migration
On 12/6/19 12:09 PM, Peter Krempa wrote:
The non-shared-storage migration tracks the storage source used
explicitly in the migration data so we must allow for processing of the
block job which has NULL mirror as the mirror will not be populated.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index baa79ea80c..2773acc990 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -1139,7 +1139,9 @@ qemuBlockJobProcessEventConcludedCopyPivot(virQEMUDriverPtr
driver,
{
VIR_DEBUG("copy job '%s' on VM '%s' pivoted",
job->name, vm->def->name);
- if (!job->disk)
+ /* mirror may be NULL for copy job corresponding to migragion */
migration (3 times)
With typos fixed,
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 6/8] qemu: migration: Split out setup of the migration target
Separate out allocation of the virStorageSource corresponding to the
target NBD export of the migration.
As part of the splitout we allocate the export name explicitly as that
one must not change regardless whether blockdev is used or not to
provide compatibility.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 55 +++++++++++++++++++++++++--------------
1 file changed, 35 insertions(+), 20 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 9062be38ab..8bf23e9f30 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -776,38 +776,28 @@ qemuMigrationSrcNBDCopyCancel(virQEMUDriverPtr driver,
}
-static int
-qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
- virDomainObjPtr vm,
- virDomainDiskDefPtr disk,
- const char *diskAlias,
- const char *host,
- int port,
- unsigned long long mirror_speed,
- unsigned int mirror_shallow,
- const char *tlsAlias)
+static virStorageSourcePtr
+qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(virDomainDiskDefPtr disk,
+ const char *host,
+ int port,
+ const char *tlsAlias)
{
- g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
- qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
- int mon_ret = 0;
g_autoptr(virStorageSource) copysrc = NULL;
- VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", diskAlias,
host);
-
if (!(copysrc = virStorageSourceNew()))
- return -1;
+ return NULL;
copysrc->type = VIR_STORAGE_TYPE_NETWORK;
copysrc->protocol = VIR_STORAGE_NET_PROTOCOL_NBD;
copysrc->format = VIR_STORAGE_FILE_RAW;
if (!(copysrc->backingStore = virStorageSourceNew()))
- return -1;
+ return NULL;
- copysrc->path = g_strdup(diskAlias);
+ if (!(copysrc->path = qemuAliasDiskDriveFromDisk(disk)))
+ return NULL;
- if (VIR_ALLOC_N(copysrc->hosts, 1) < 0)
- return -1;
+ copysrc->hosts = g_new0(virStorageNetHostDef, 1);
copysrc->nhosts = 1;
copysrc->hosts->transport = VIR_STORAGE_NET_HOST_TRANS_TCP;
@@ -819,6 +809,31 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
copysrc->nodestorage = g_strdup_printf("migration-%s-storage",
disk->dst);
copysrc->nodeformat = g_strdup_printf("migration-%s-format",
disk->dst);
+ return g_steal_pointer(©src);
+}
+
+
+static int
+qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ virDomainDiskDefPtr disk,
+ const char *diskAlias,
+ const char *host,
+ int port,
+ unsigned long long mirror_speed,
+ unsigned int mirror_shallow,
+ const char *tlsAlias)
+{
+ g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
+ qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
+ int mon_ret = 0;
+ g_autoptr(virStorageSource) copysrc = NULL;
+
+ VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", diskAlias,
host);
+
+ if (!(copysrc = qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(disk, host, port,
tlsAlias)))
+ return -1;
+
/* Migration via blockdev-mirror was supported sooner than the auto-read-only
* feature was added to qemu */
if (!(data = qemuBlockStorageSourceAttachPrepareBlockdev(copysrc,
--
2.23.0
5:05 p.m.
New subject: [libvirt] [PATCH 6/8] qemu: migration: Split out setup of the migration target
On 12/6/19 12:09 PM, Peter Krempa wrote:
Separate out allocation of the virStorageSource corresponding to the
target NBD export of the migration.
As part of the splitout we allocate the export name explicitly as that
one must not change regardless whether blockdev is used or not to
provide compatibility.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 55 +++++++++++++++++++++++++--------------
1 file changed, 35 insertions(+), 20 deletions(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 7/8] qemu: migration: Mention disk target rather than the drive name in debug msg
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 8bf23e9f30..27023c94b1 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -829,7 +829,7 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
int mon_ret = 0;
g_autoptr(virStorageSource) copysrc = NULL;
- VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", diskAlias,
host);
+ VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", disk->dst,
host);
if (!(copysrc = qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(disk, host, port,
tlsAlias)))
return -1;
--
2.23.0
5:06 p.m.
New subject: [libvirt] [PATCH 7/8] qemu: migration: Mention disk target rather than the drive name in debug msg
On 12/6/19 12:09 PM, Peter Krempa wrote:
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 8bf23e9f30..27023c94b1 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -829,7 +829,7 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
int mon_ret = 0;
g_autoptr(virStorageSource) copysrc = NULL;
- VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", diskAlias,
host);
+ VIR_DEBUG("starting blockdev mirror for disk=%s to host=%s", disk->dst,
host);
if (!(copysrc = qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource(disk, host,
port, tlsAlias)))
return -1;
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
12:09 p.m.
New subject: [libvirt] [PATCH 8/8] qemu: migration: Properly setup mirror for blockdev configurations
With blockdev we need to refer to the nodename of the disk source image
as the source argument for the blockdev-mirror operation while still
keeping the old job name. With blockdev we must also persist the job in
qemu.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 27023c94b1..6dfcd5a642 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -817,7 +817,9 @@ static int
qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainDiskDefPtr disk,
- const char *diskAlias,
+ const char *jobname,
+ const char *sourcename,
+ bool persistjob,
const char *host,
int port,
unsigned long long mirror_speed,
@@ -848,8 +850,8 @@ qemuMigrationSrcNBDStorageCopyBlockdev(virQEMUDriverPtr driver,
mon_ret = qemuBlockStorageSourceAttachApply(qemuDomainGetMonitor(vm), data);
if (mon_ret == 0)
- mon_ret = qemuMonitorBlockdevMirror(qemuDomainGetMonitor(vm), NULL, false,
- diskAlias, copysrc->nodeformat,
+ mon_ret = qemuMonitorBlockdevMirror(qemuDomainGetMonitor(vm), jobname,
persistjob,
+ sourcename, copysrc->nodeformat,
mirror_speed, 0, 0, mirror_shallow);
if (mon_ret != 0)
@@ -914,6 +916,9 @@ qemuMigrationSrcNBDStorageCopyOne(virQEMUDriverPtr driver,
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
qemuBlockJobDataPtr job = NULL;
char *diskAlias = NULL;
+ const char *jobname = NULL;
+ const char *sourcename = NULL;
+ bool persistjob = false;
int rc;
int ret = -1;
@@ -923,12 +928,23 @@ qemuMigrationSrcNBDStorageCopyOne(virQEMUDriverPtr driver,
if (!(job = qemuBlockJobDiskNew(vm, disk, QEMU_BLOCKJOB_TYPE_COPY, diskAlias)))
goto cleanup;
+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV)) {
+ jobname = diskAlias;
+ sourcename = disk->src->nodeformat;
+ persistjob = true;
+ } else {
+ jobname = NULL;
+ sourcename = diskAlias;
+ persistjob = false;
+ }
+
qemuBlockJobSyncBegin(job);
if (flags & VIR_MIGRATE_TLS ||
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV)) {
rc = qemuMigrationSrcNBDStorageCopyBlockdev(driver, vm,
- disk, diskAlias,
+ disk, jobname,
+ sourcename, persistjob,
host, port,
mirror_speed,
mirror_shallow,
--
2.23.0
5:07 p.m.
New subject: [libvirt] [PATCH 8/8] qemu: migration: Properly setup mirror for blockdev configurations
On 12/6/19 12:09 PM, Peter Krempa wrote:
With blockdev we need to refer to the nodename of the disk source
image
as the source argument for the blockdev-mirror operation while still
keeping the old job name. With blockdev we must also persist the job in
qemu.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_migration.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
Reviewed-by: Eric Blake <eblake(a)redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
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