keep_log
if (!errors_handled(ms) && keep_log(ms)) {
num_feature_args += !!keep_log(ms);
if (keep_log(ms))
DMEMIT(",keep_log=%c", keep_log(ms) ? 'y' : 'n');
if (!ms->in_sync && !keep_log(ms)) {
if (unlikely(ms->leg_failure) && errors_handled(ms) && !keep_log(ms)) {
if (unlikely(!get_valid_mirror(ms) || (keep_log(ms) && ms->log_failure)))
else if (errors_handled(ms) && !keep_log(ms))