@@ -578,12 +592,15 @@ struct rchan *relay_open(const char *base_filename,
chan->alloc_size = FIX_SIZE(subbuf_size * n_subbufs);
chan->parent = parent;
chan->private_data = private_data;
- strlcpy(chan->base_filename, base_filename, NAME_MAX);
+ if (base_filename) {
+ chan->has_base_filename = 1;
+ strlcpy(chan->base_filename, base_filename, NAME_MAX);
+ }
setup_callbacks(chan, cb);
kref_init(&chan->kref);
mutex_lock(&relay_channels_mutex);
- for_each_online_cpu(i) {
+ for_each_present_cpu(i) {
chan->buf[i] = relay_open_buf(chan, i);
if (!chan->buf[i])
goto free_bufs;
@@ -594,7 +611,7 @@ struct rchan *relay_open(const char *base_filename,
return chan;
free_bufs:
- for_each_online_cpu(i) {
+ for_each_present_cpu(i) {
if (!chan->buf[i])
break;
relay_close_buf(chan->buf[i]);