centos man page for atomic_sub_return

ATOMIC_SUB_RETURN(9)						   Driver Basics					      ATOMIC_SUB_RETURN(9)

NAME
       atomic_sub_return - subtract integer and return

SYNOPSIS
       int atomic_sub_return(int i, atomic_t * v);

ARGUMENTS
       i
	   integer value to subtract

       v
	   pointer of type atomic_t

DESCRIPTION
       Atomically subtracts i from v and returns v - i

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      ATOMIC_SUB_RETURN(9)