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qemu: Properly abort migration to a file

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This is similar to the previous commit in that we need to explicitly
send migrate_cancel when libvirt detects an error other than those
reported by query-migrate. However, the possibility to hit such error is
pretty small.
This commit is contained in:
Jiri Denemark 2014-05-22 12:38:47 +02:00
parent e27d28970f
commit 7757d83dd5
1 changed files with 20 additions and 1 deletions
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21
src/qemu/qemu_migration.c
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@ -4704,6 +4704,7 @@ qemuMigrationToFile(virQEMUDriverPtr driver, virDomainObjPtr vm,
int pipeFD[2] = { -1, -1 };
unsigned long saveMigBandwidth = priv->migMaxBandwidth;
char *errbuf = NULL;
virErrorPtr orig_err = NULL;
/* Increase migration bandwidth to unlimited since target is a file.
* Failure to change migration speed is not fatal. */
@ -4806,8 +4807,17 @@ qemuMigrationToFile(virQEMUDriverPtr driver, virDomainObjPtr vm,
rc = qemuMigrationWaitForCompletion(driver, vm, asyncJob, NULL, false);
if (rc < 0)
if (rc < 0) {
if (rc == -2) {
orig_err = virSaveLastError();
virCommandAbort(cmd);
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) == 0) {
qemuMonitorMigrateCancel(priv->mon);
qemuDomainObjExitMonitor(driver, vm);
}
}
goto cleanup;
}
if (cmd && virCommandWait(cmd, NULL) < 0)
goto cleanup;
@ -4815,6 +4825,9 @@ qemuMigrationToFile(virQEMUDriverPtr driver, virDomainObjPtr vm,
ret = 0;
cleanup:
if (ret < 0 && !orig_err)
orig_err = virSaveLastError();
/* Restore max migration bandwidth */
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) == 0) {
qemuMonitorSetMigrationSpeed(priv->mon, saveMigBandwidth);
@ -4840,6 +4853,12 @@ qemuMigrationToFile(virQEMUDriverPtr driver, virDomainObjPtr vm,
VIR_CGROUP_DEVICE_RWM);
virDomainAuditCgroupPath(vm, priv->cgroup, "deny", path, "rwm", rv == 0);
}
if (orig_err) {
virSetError(orig_err);
virFreeError(orig_err);
}
return ret;
}