KFIFO_PEEK(9)                              FIFO Buffer                              KFIFO_PEEK(9)



NAME
       kfifo_peek - get data from the fifo without removing

SYNOPSIS
       kfifo_peek(fifo, val);

ARGUMENTS
       fifo
           address of the fifo to be used

       val
           address where to store the data

DESCRIPTION
       This reads the data from the fifo without removing it from the fifo. It returns 0 if the
       fifo was empty. Otherwise it returns the number processed elements.

       Note that with only one concurrent reader and one concurrent writer, you don't need extra
       locking to use these macro.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                             KFIFO_PEEK(9)