centos man page for kfifo_get

KFIFO_GET(9)							    FIFO Buffer 						      KFIFO_GET(9)

NAME
       kfifo_get - get data from the fifo

SYNOPSIS
       kfifo_get(fifo, val);

ARGUMENTS
       fifo
	   address of the fifo to be used

       val
	   the var where to store the data to be added

DESCRIPTION
       This macro reads the data 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 3.10					     June 2014							      KFIFO_GET(9)