virsh migrate: Properly check for --parallel-connections

Ever since --parallel-connections option for virsh migrate was
introduced we did not properly check the return value of
vshCommandOptInt. We would set VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS
parameter even if vshCommandOptInt returned 0 (which means
--parallel-connections was not specified) when another int option which
was checked earlier was specified with a nonzero value.

Specifically, running virsh migrate with either
--auto-converge-increment, --auto-converge-initial, --comp-mt-dthreads,
--comp-mt-threads, or --comp-mt-level would set
VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS parameter and if --parallel
option was not used, libvirt would complain

    error: invalid argument: Turn parallel migration on to tune it

even though --parallel-connections option was not used at all.

https://bugzilla.redhat.com/show_bug.cgi?id=1726643

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Jiri Denemark 2019-07-19 15:46:33 +02:00
parent 2651b04ba5
commit 88ce7bac41

View File

@ -10785,13 +10785,14 @@ doMigrate(void *opaque)
goto save_error;
}
if (vshCommandOptInt(ctl, cmd, "parallel-connections", &intOpt) < 0)
if ((rv = vshCommandOptInt(ctl, cmd, "parallel-connections", &intOpt)) < 0) {
goto out;
if (intOpt &&
virTypedParamsAddInt(&params, &nparams, &maxparams,
VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS,
intOpt) < 0)
goto save_error;
} else if (rv > 0) {
if (virTypedParamsAddInt(&params, &nparams, &maxparams,
VIR_MIGRATE_PARAM_PARALLEL_CONNECTIONS,
intOpt) < 0)
goto save_error;
}
if (vshCommandOptBool(cmd, "live"))
flags |= VIR_MIGRATE_LIVE;