centos man page for kfifo_out_peek

KFIFO_OUT_PEEK(9)						    FIFO Buffer 						 KFIFO_OUT_PEEK(9)

NAME
       kfifo_out_peek - gets some data from the fifo

SYNOPSIS
       kfifo_out_peek(fifo, buf, n);

ARGUMENTS
       fifo
	   address of the fifo to be used

       buf
	   pointer to the storage buffer

       n
	   max. number of elements to get

DESCRIPTION
       This macro get the data from the fifo and return the numbers of elements copied. The data is not removed from the fifo.

       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 3.10					     June 2014							 KFIFO_OUT_PEEK(9)