kfifo_reset_out (9) - Linux Man Pages
kfifo_reset_out: skip fifo content
kfifo_reset_out - skip fifo content
- address of the fifo to be used
The usage of kfifo_reset_out is safe until it will be only called from the reader thread and there is only one concurrent reader. Otherwise it is dangerous and must be handled in the same way as kfifo_reset.