4 a.m.
v3 aims to incorporate Peter's feedback to v2, mainly:
- patch 1 was split into two - the delete flag propagation stays in patch 1,
the actual enabling the feature was moved to what's now patch 4
- patch 2 was modified to handle NFS and to use g_strerror() instead of
strerror_r()
- the former patch 4 was squashed into patch 3.
Pavel Mores (4):
qemu: block: propagate the delete flag to where it can actually be
used
qemu: block: use the delete flag to delete snapshot images if
requested
qemu: block: store the delete flag in libvirtd's status XML
qemu: block: enable the snapshot image deletion feature
src/qemu/qemu_blockjob.c | 43 ++++++++++++++++++-
src/qemu/qemu_blockjob.h | 4 +-
src/qemu/qemu_domain.c | 6 ++-
src/qemu/qemu_domain.h | 6 +++
src/qemu/qemu_driver.c | 5 ++-
.../blockjob-blockdev-in.xml | 1 +
6 files changed, 60 insertions(+), 5 deletions(-)
--
2.21.0
4 a.m.
New subject: [libvirt] [PATCH v3 1/4] qemu: block: propagate the delete flag to where it can actually be used
Propagate the delete flag from qemuDomainBlockCommit() (which was just
ignoring it until now) to qemuBlockJobDiskNewCommit() where it can be
stored in the qemuBlockJobCommitData structure which holds information
necessary to finish the job asynchronously.
In the actual qemuBlockJobDiskNewCommit() in this commit, we temporarily
pass a literal 'false' to preserve the current behaviour until the whole
implementation of the feature is in place.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 4 +++-
src/qemu/qemu_blockjob.h | 4 +++-
src/qemu/qemu_driver.c | 2 +-
3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 5c294f8024..7d94a6ce38 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -250,7 +250,8 @@ qemuBlockJobDiskNewCommit(virDomainObjPtr vm,
virDomainDiskDefPtr disk,
virStorageSourcePtr topparent,
virStorageSourcePtr top,
- virStorageSourcePtr base)
+ virStorageSourcePtr base,
+ bool delete_imgs)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
g_autoptr(qemuBlockJobData) job = NULL;
@@ -273,6 +274,7 @@ qemuBlockJobDiskNewCommit(virDomainObjPtr vm,
job->data.commit.topparent = topparent;
job->data.commit.top = top;
job->data.commit.base = base;
+ job->data.commit.deleteCommittedImages = delete_imgs;
if (qemuBlockJobRegister(job, vm, disk, true) < 0)
return NULL;
diff --git a/src/qemu/qemu_blockjob.h b/src/qemu/qemu_blockjob.h
index d8da918f2f..d77f1dcdb3 100644
--- a/src/qemu/qemu_blockjob.h
+++ b/src/qemu/qemu_blockjob.h
@@ -85,6 +85,7 @@ struct _qemuBlockJobCommitData {
virStorageSourcePtr topparent;
virStorageSourcePtr top;
virStorageSourcePtr base;
+ bool deleteCommittedImages;
};
@@ -165,7 +166,8 @@ qemuBlockJobDiskNewCommit(virDomainObjPtr vm,
virDomainDiskDefPtr disk,
virStorageSourcePtr topparent,
virStorageSourcePtr top,
- virStorageSourcePtr base);
+ virStorageSourcePtr base,
+ bool delete_imgs);
qemuBlockJobDataPtr
qemuBlockJobNewCreate(virDomainObjPtr vm,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index dc14ec86a3..a3ff4b2177 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -18638,7 +18638,7 @@ qemuDomainBlockCommit(virDomainPtr dom,
goto endjob;
if (!(job = qemuBlockJobDiskNewCommit(vm, disk, top_parent, topSource,
- baseSource)))
+ baseSource, false)))
goto endjob;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
--
2.21.0
8:03 a.m.
New subject: [libvirt] [PATCH v3 1/4] qemu: block: propagate the delete flag to where it can actually be used
On Thu, Nov 21, 2019 at 11:00:44 +0100, Pavel Mores wrote:
Propagate the delete flag from qemuDomainBlockCommit() (which was
just
ignoring it until now) to qemuBlockJobDiskNewCommit() where it can be
stored in the qemuBlockJobCommitData structure which holds information
necessary to finish the job asynchronously.
In the actual qemuBlockJobDiskNewCommit() in this commit, we temporarily
pass a literal 'false' to preserve the current behaviour until the whole
implementation of the feature is in place.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 4 +++-
src/qemu/qemu_blockjob.h | 4 +++-
src/qemu/qemu_driver.c | 2 +-
3 files changed, 7 insertions(+), 3 deletions(-)
ACK
4 a.m.
New subject: [libvirt] [PATCH v3 2/4] qemu: block: use the delete flag to delete snapshot images if requested
When blockcommit finishes successfully, one of the
qemuBlockJobProcessEventCompletedCommit() and
qemuBlockJobProcessEventCompletedActiveCommit() event handlers is called.
This is where the delete flag (stored in qemuBlockJobCommitData since the
previous commit) can actually be used to delete the committed snapshot
images if requested.
We use virFileRemove() instead of a simple unlink() to cover the case where
the image to be removed is on an NFS volume. To acquire the uid/gid arguments
for the virFileRemove() call, we call qemuDomainGetImageIds() which was
previously static in its file so we first have to export it.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 39 +++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_domain.c | 2 +-
src/qemu/qemu_domain.h | 6 ++++++
3 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 7d94a6ce38..1bf23dac3c 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -965,6 +965,37 @@ qemuBlockJobProcessEventCompletedPull(virQEMUDriverPtr driver,
}
+/**
+ * Helper for qemuBlockJobProcessEventCompletedCommit() and
+ * qemuBlockJobProcessEventCompletedActiveCommit(). Relies on adjustments
+ * these functions perform on the 'backingStore' chain to function correctly.
+ *
+ * TODO look into removing backing store for non-local snapshots too
+ */
+static void
+qemuBlockJobUnlinkCommittedStorage(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ virDomainDiskDefPtr disk,
+ virStorageSourcePtr top)
+{
+ virStorageSourcePtr p = top;
+ virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ uid_t uid;
+ gid_t gid;
+
+ for (; p != NULL; p = p->backingStore) {
+ if (virStorageSourceIsLocalStorage(p)) {
+
+ qemuDomainGetImageIds(cfg, vm, p, disk->src, &uid, &gid);
+
+ if (virFileRemove(p->path, uid, gid) < 0) {
+ VIR_WARN("Unable to remove snapshot image file %s (%s)",
+ p->path, g_strerror(errno));
+ }
+ }
+ }
+}
+
/**
* qemuBlockJobProcessEventCompletedCommit:
* @driver: qemu driver object
@@ -1031,6 +1062,10 @@ qemuBlockJobProcessEventCompletedCommit(virQEMUDriverPtr driver,
job->data.commit.topparent->backingStore = job->data.commit.base;
qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob,
job->data.commit.top);
+
+ if (job->data.commit.deleteCommittedImages)
+ qemuBlockJobUnlinkCommittedStorage(driver, vm, job->disk,
job->data.commit.top);
+
virObjectUnref(job->data.commit.top);
job->data.commit.top = NULL;
@@ -1121,6 +1156,10 @@ qemuBlockJobProcessEventCompletedActiveCommit(virQEMUDriverPtr
driver,
job->disk->src->readonly = job->data.commit.top->readonly;
qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob,
job->data.commit.top);
+
+ if (job->data.commit.deleteCommittedImages)
+ qemuBlockJobUnlinkCommittedStorage(driver, vm, job->disk,
job->data.commit.top);
+
virObjectUnref(job->data.commit.top);
job->data.commit.top = NULL;
/* the mirror element does not serve functional purpose for the commit job */
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 262b74d1ab..07bf8f5a54 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -10133,7 +10133,7 @@ qemuDomainCleanupRun(virQEMUDriverPtr driver,
priv->ncleanupCallbacks_max = 0;
}
-static void
+void
qemuDomainGetImageIds(virQEMUDriverConfigPtr cfg,
virDomainObjPtr vm,
virStorageSourcePtr src,
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 98a9540275..f66610c7d3 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -834,6 +834,12 @@ bool qemuDomainDiskChangeSupported(virDomainDiskDefPtr disk,
const char *qemuDomainDiskNodeFormatLookup(virDomainObjPtr vm,
const char *disk);
+void qemuDomainGetImageIds(virQEMUDriverConfigPtr cfg,
+ virDomainObjPtr vm,
+ virStorageSourcePtr src,
+ virStorageSourcePtr parentSrc,
+ uid_t *uid, gid_t *gid);
+
int qemuDomainStorageFileInit(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virStorageSourcePtr src,
--
2.21.0
8:06 a.m.
New subject: [libvirt] [PATCH v3 2/4] qemu: block: use the delete flag to delete snapshot images if requested
On Thu, Nov 21, 2019 at 11:00:45 +0100, Pavel Mores wrote:
When blockcommit finishes successfully, one of the
qemuBlockJobProcessEventCompletedCommit() and
qemuBlockJobProcessEventCompletedActiveCommit() event handlers is called.
This is where the delete flag (stored in qemuBlockJobCommitData since the
previous commit) can actually be used to delete the committed snapshot
images if requested.
We use virFileRemove() instead of a simple unlink() to cover the case where
the image to be removed is on an NFS volume. To acquire the uid/gid arguments
for the virFileRemove() call, we call qemuDomainGetImageIds() which was
previously static in its file so we first have to export it.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 39 +++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_domain.c | 2 +-
src/qemu/qemu_domain.h | 6 ++++++
3 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 7d94a6ce38..1bf23dac3c 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -965,6 +965,37 @@ qemuBlockJobProcessEventCompletedPull(virQEMUDriverPtr driver,
}
+/**
+ * Helper for qemuBlockJobProcessEventCompletedCommit() and
+ * qemuBlockJobProcessEventCompletedActiveCommit(). Relies on adjustments
+ * these functions perform on the 'backingStore' chain to function correctly.
Preferably use the format of the comments we use elsewhere too.
+ *
+ * TODO look into removing backing store for non-local snapshots too
+ */
+static void
+qemuBlockJobUnlinkCommittedStorage(virQEMUDriverPtr driver,
You could name it more generic as this same operation may be added for
other block jobs in the future.
E.g. qemuBlockJobDeleteImages.
+ virDomainObjPtr vm,
+ virDomainDiskDefPtr disk,
+ virStorageSourcePtr top)
+{
+ virStorageSourcePtr p = top;
+ virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ uid_t uid;
+ gid_t gid;
+
+ for (; p != NULL; p = p->backingStore) {
+ if (virStorageSourceIsLocalStorage(p)) {
This also returns true for 'VIR_STORAGE_TYPE_FILE' but we certainly
don't want to unlink those.
+
+ qemuDomainGetImageIds(cfg, vm, p, disk->src, &uid, &gid);
+
+ if (virFileRemove(p->path, uid, gid) < 0) {
+ VIR_WARN("Unable to remove snapshot image file %s (%s)",
Add apostrophes around the first %s -> '%s'
+ p->path, g_strerror(errno));
+ }
+ }
+ }
+}
+
/**
* qemuBlockJobProcessEventCompletedCommit:
* @driver: qemu driver object
@@ -1031,6 +1062,10 @@ qemuBlockJobProcessEventCompletedCommit(virQEMUDriverPtr driver,
job->data.commit.topparent->backingStore = job->data.commit.base;
qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob,
job->data.commit.top);
+
+ if (job->data.commit.deleteCommittedImages)
+ qemuBlockJobUnlinkCommittedStorage(driver, vm, job->disk,
job->data.commit.top);
+
virObjectUnref(job->data.commit.top);
job->data.commit.top = NULL;
@@ -1121,6 +1156,10 @@ qemuBlockJobProcessEventCompletedActiveCommit(virQEMUDriverPtr
driver,
job->disk->src->readonly = job->data.commit.top->readonly;
qemuBlockJobEventProcessConcludedRemoveChain(driver, vm, asyncJob,
job->data.commit.top);
+
+ if (job->data.commit.deleteCommittedImages)
+ qemuBlockJobUnlinkCommittedStorage(driver, vm, job->disk,
job->data.commit.top);
+
virObjectUnref(job->data.commit.top);
job->data.commit.top = NULL;
/* the mirror element does not serve functional purpose for the commit job */
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 262b74d1ab..07bf8f5a54 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -10133,7 +10133,7 @@ qemuDomainCleanupRun(virQEMUDriverPtr driver,
priv->ncleanupCallbacks_max = 0;
}
-static void
+void
qemuDomainGetImageIds(virQEMUDriverConfigPtr cfg,
virDomainObjPtr vm,
virStorageSourcePtr src,
Preferably export this in a separate commit.
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 98a9540275..f66610c7d3 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -834,6 +834,12 @@ bool qemuDomainDiskChangeSupported(virDomainDiskDefPtr disk,
const char *qemuDomainDiskNodeFormatLookup(virDomainObjPtr vm,
const char *disk);
+void qemuDomainGetImageIds(virQEMUDriverConfigPtr cfg,
+ virDomainObjPtr vm,
+ virStorageSourcePtr src,
+ virStorageSourcePtr parentSrc,
+ uid_t *uid, gid_t *gid);
+
int qemuDomainStorageFileInit(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virStorageSourcePtr src,
--
2.21.0
--
libvir-list mailing list
libvir-list(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
8:10 a.m.
New subject: [libvirt] [PATCH v3 2/4] qemu: block: use the delete flag to delete snapshot images if requested
On Thu, Nov 21, 2019 at 11:00:45 +0100, Pavel Mores wrote:
When blockcommit finishes successfully, one of the
qemuBlockJobProcessEventCompletedCommit() and
qemuBlockJobProcessEventCompletedActiveCommit() event handlers is called.
This is where the delete flag (stored in qemuBlockJobCommitData since the
previous commit) can actually be used to delete the committed snapshot
images if requested.
We use virFileRemove() instead of a simple unlink() to cover the case where
the image to be removed is on an NFS volume. To acquire the uid/gid arguments
for the virFileRemove() call, we call qemuDomainGetImageIds() which was
previously static in its file so we first have to export it.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_blockjob.c | 39 +++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_domain.c | 2 +-
src/qemu/qemu_domain.h | 6 ++++++
3 files changed, 46 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 7d94a6ce38..1bf23dac3c 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -965,6 +965,37 @@ qemuBlockJobProcessEventCompletedPull(virQEMUDriverPtr driver,
}
+/**
+ * Helper for qemuBlockJobProcessEventCompletedCommit() and
+ * qemuBlockJobProcessEventCompletedActiveCommit(). Relies on adjustments
+ * these functions perform on the 'backingStore' chain to function correctly.
+ *
+ * TODO look into removing backing store for non-local snapshots too
+ */
+static void
+qemuBlockJobUnlinkCommittedStorage(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ virDomainDiskDefPtr disk,
+ virStorageSourcePtr top)
+{
+ virStorageSourcePtr p = top;
+ virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
The reference acquired here is leaked from this function. You can use
g_autoptr for it.
4 a.m.
New subject: [libvirt] [PATCH v3 3/4] qemu: block: store the delete flag in libvirtd's status XML
Since blockcommit is asynchronous, libvirtd can be restarted while the
operation runs. To ensure the information necessary to finish up the job
is not lost, serialisation to and deserialisation from the status XML is
added.
To unittest this, the new element was only added to the active commit test,
the non-active commit test doesn't have the new element so as to test its
absence.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_domain.c | 4 ++++
tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml | 1 +
2 files changed, 5 insertions(+)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 07bf8f5a54..f4cb0f9ea0 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -2512,6 +2512,8 @@ qemuDomainObjPrivateXMLFormatBlockjobIterator(void *payload,
virBufferAsprintf(&childBuf, "<top
node='%s'/>\n", job->data.commit.top->nodeformat);
if (job->data.commit.topparent)
virBufferAsprintf(&childBuf, "<topparent
node='%s'/>\n", job->data.commit.topparent->nodeformat);
+ if (job->data.commit.deleteCommittedImages)
+ virBufferAddLit(&childBuf,
"<deleteCommittedImages/>\n");
break;
case QEMU_BLOCKJOB_TYPE_CREATE:
@@ -3069,6 +3071,8 @@ qemuDomainObjPrivateXMLParseBlockjobDataSpecific(qemuBlockJobDataPtr
job,
"string(./base/@node)",
&job->data.commit.base,
ctxt);
+ if (virXPathNode("./deleteCommittedImages", ctxt))
+ job->data.commit.deleteCommittedImages = true;
if (!job->data.commit.top ||
!job->data.commit.base)
goto broken;
diff --git a/tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml
b/tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml
index 4f6930001e..5fd2ed1d78 100644
--- a/tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml
+++ b/tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml
@@ -242,6 +242,7 @@
<disk dst='vde'/>
<base node='libvirt-19-format'/>
<top node='libvirt-17-format'/>
+ <deleteCommittedImages/>
</blockjob>
<blockjob name='create-libvirt-1337-storage' type='create'
state='running'>
<create mode='storage'/>
--
2.21.0
8:07 a.m.
New subject: [libvirt] [PATCH v3 3/4] qemu: block: store the delete flag in libvirtd's status XML
On Thu, Nov 21, 2019 at 11:00:46 +0100, Pavel Mores wrote:
Since blockcommit is asynchronous, libvirtd can be restarted while
the
operation runs. To ensure the information necessary to finish up the job
is not lost, serialisation to and deserialisation from the status XML is
added.
To unittest this, the new element was only added to the active commit test,
the non-active commit test doesn't have the new element so as to test its
absence.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_domain.c | 4 ++++
tests/qemustatusxml2xmldata/blockjob-blockdev-in.xml | 1 +
2 files changed, 5 insertions(+)
Reviewed-by: Peter Krempa <pkrempa(a)redhat.com>
4 a.m.
New subject: [libvirt] [PATCH v3 4/4] qemu: block: enable the snapshot image deletion feature
With all plumbing in place, we can now enable the new functionality.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_driver.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a3ff4b2177..75458f5c8a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -18496,10 +18496,10 @@ qemuDomainBlockCommit(virDomainPtr dom,
bool persistjob = false;
bool blockdev = false;
- /* XXX Add support for COMMIT_DELETE */
virCheckFlags(VIR_DOMAIN_BLOCK_COMMIT_SHALLOW |
VIR_DOMAIN_BLOCK_COMMIT_ACTIVE |
VIR_DOMAIN_BLOCK_COMMIT_RELATIVE |
+ VIR_DOMAIN_BLOCK_COMMIT_DELETE |
VIR_DOMAIN_BLOCK_COMMIT_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
@@ -18638,7 +18638,8 @@ qemuDomainBlockCommit(virDomainPtr dom,
goto endjob;
if (!(job = qemuBlockJobDiskNewCommit(vm, disk, top_parent, topSource,
- baseSource, false)))
+ baseSource,
+ flags & VIR_DOMAIN_BLOCK_COMMIT_DELETE)))
goto endjob;
disk->mirrorState = VIR_DOMAIN_DISK_MIRROR_STATE_NONE;
--
2.21.0
8:08 a.m.
New subject: [libvirt] [PATCH v3 4/4] qemu: block: enable the snapshot image deletion feature
On Thu, Nov 21, 2019 at 11:00:47 +0100, Pavel Mores wrote:
With all plumbing in place, we can now enable the new functionality.
Signed-off-by: Pavel Mores <pmores(a)redhat.com>
---
src/qemu/qemu_driver.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a3ff4b2177..75458f5c8a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -18496,10 +18496,10 @@ qemuDomainBlockCommit(virDomainPtr dom,
bool persistjob = false;
bool blockdev = false;
- /* XXX Add support for COMMIT_DELETE */
virCheckFlags(VIR_DOMAIN_BLOCK_COMMIT_SHALLOW |
VIR_DOMAIN_BLOCK_COMMIT_ACTIVE |
VIR_DOMAIN_BLOCK_COMMIT_RELATIVE |
+ VIR_DOMAIN_BLOCK_COMMIT_DELETE |
VIR_DOMAIN_BLOCK_COMMIT_BANDWIDTH_BYTES, -1);
if (!(vm = qemuDomainObjFromDomain(dom)))
@@ -18638,7 +18638,8 @@ qemuDomainBlockCommit(virDomainPtr dom,
goto endjob;
You must check that VIR_QEMU_CAPS_BLOCKDEV is enabled for this VM
otherwise the flag won't work. If blockdev isn't enabled you still must
produce an error message.
1815
days inactive
1827
days old
9 comments
2 participants
participants (2)
-
Pavel Mores -
Peter Krempa