* alloc/sync pairs:
*
* RING_BUFFER_ALLOC_PER_CPU and RING_BUFFER_SYNC_PER_CPU :
- * Per-cpu buffers with per-cpu synchronization. Tracing must be performed
- * with preemption disabled (lib_ring_buffer_get_cpu() and
- * lib_ring_buffer_put_cpu()).
+ * Per-cpu buffers with per-cpu synchronization.
*
* RING_BUFFER_ALLOC_PER_CPU and RING_BUFFER_SYNC_GLOBAL :
* Per-cpu buffer with global synchronization. Tracing can be performed with