Update comments regarding the power of 2 constraint on sub-buffer sizes

[lttng-tools.git] / src / bin / lttng-sessiond / lttng-ust-ctl.h

diff --git a/src/bin/lttng-sessiond/lttng-ust-ctl.h b/src/bin/lttng-sessiond/lttng-ust-ctl.h
index 7f59b86665523610b30a9d561ff326ef36521ca2..3d20c38a1541e0766b6216c92704329426f4dae6 100644 (file)
--- a/src/bin/lttng-sessiond/lttng-ust-ctl.h
+++ b/src/bin/lttng-sessiond/lttng-ust-ctl.h
@@ -45,7 +45,7 @@ struct lttng_ust_lib_ring_buffer;
 
 struct ustctl_consumer_channel_attr {
        enum lttng_ust_chan_type type;
-       uint64_t subbuf_size;                   /* bytes */
+       uint64_t subbuf_size;                   /* bytes, power of 2 */
        uint64_t num_subbuf;                    /* power of 2 */
        int overwrite;                          /* 1: overwrite, 0: discard */
        unsigned int switch_timer_interval;     /* usec */