suse man page for yield

YIELD(9)							   Driver Basics							  YIELD(9)

NAME
       yield - yield the current processor to other threads.

SYNOPSIS
       void __sched yield(void);

ARGUMENTS
       void
	   no arguments

DESCRIPTION
       This is a shortcut for kernel-space yielding - it marks the thread runnable and calls sys_sched_yield.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010								  YIELD(9)