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qemuDomainSnapshotCreateActiveExternal: Grab agent job

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Now that we have agent job we can grab it while freezing/thawing
guest file system before/after doing snapshot.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Michal Privoznik 2018-06-19 19:26:44 +02:00
parent bd59e0d7c2
commit cb2bc7a492
1 changed files with 22 additions and 5 deletions
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27
src/qemu/qemu_driver.c
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@ -15144,7 +15144,19 @@ qemuDomainSnapshotCreateActiveExternal(virQEMUDriverPtr driver,
* The command will fail if the guest is paused or the guest agent
* is not running, or is already quiesced. */
if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE) {
int freeze = qemuDomainSnapshotFSFreeze(driver, vm, NULL, 0);
int freeze;
if (qemuDomainObjBeginAgentJob(driver, vm, QEMU_AGENT_JOB_MODIFY) < 0)
goto cleanup;
if (virDomainObjCheckActive(vm) < 0) {
qemuDomainObjEndAgentJob(vm);
goto cleanup;
}
freeze = qemuDomainSnapshotFSFreeze(driver, vm, NULL, 0);
qemuDomainObjEndAgentJob(vm);
if (freeze < 0) {
/* the helper reported the error */
if (freeze == -2)
@ -15281,10 +15293,15 @@ qemuDomainSnapshotCreateActiveExternal(virQEMUDriverPtr driver,
}
if (thaw != 0 &&
qemuDomainSnapshotFSThaw(driver, vm, ret == 0 && thaw > 0) < 0) {
/* helper reported the error, if it was needed */
if (thaw > 0)
ret = -1;
qemuDomainObjBeginAgentJob(driver, vm, QEMU_AGENT_JOB_MODIFY) >= 0 &&
virDomainObjIsActive(vm)) {
if (qemuDomainSnapshotFSThaw(driver, vm, ret == 0 && thaw > 0) < 0) {
/* helper reported the error, if it was needed */
if (thaw > 0)
ret = -1;
}
qemuDomainObjEndAgentJob(vm);
}
virQEMUSaveDataFree(data);